A power system for power equipment includes a battery having a capacity of at least 300-Watt hours and including a battery housing substantially enclosing the battery and a receiver including electrical terminals provided on the receiver, the electrical terminals selectively and electrically coupled to the battery. The receiver is configured to selectively couple with a portion of the battery housing. The receiver is configured to be decoupled from the portion of the battery housing without the use of tools. The receiver includes a planar mounting surface including at least one aperture for receiving a threaded fastener. The receiver is coupled to the power equipment via a threaded fastener.
H01M 50/247 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
BRIGGS & STRATTON (SHANGHAI) INTERNATIONAL TRADING CO., LTD. (China)
BRIGGS & STRATTON CORPORATION (USA)
Inventor
Whitmore, Jeffrey, H.
Wu, Shaoban
Liu, Haijiang
Li, Yongkai
Abstract
A battery pack for powering equipment includes a core battery pack. The core battery pack includes a housing and a battery cell assembly positioned within the housing of the core battery pack. The battery cell assembly includes a first collector plate, a second collector plate, multiple battery cells, and multiple wire bonds. Each of the multiple battery cells has a first end and a second end. Each of the multiple wire bonds electrically connects the first end of one of the multiple battery cells to the first collector plate. None of the multiple wire bonds are coupled to a second end of one of the multiple battery cells.
BRIGGS & STRATTON (SHANGHAI) INTERNATIONAL TRADING CO., LTD. (China)
BRIGGS & STRATTON CORPORATION (USA)
Inventor
Whitmore, Jeff
Zeidler, Nick
Hahn, Ryan
Jaskowiak, Ryan
Harvey, Kyle
Wu, Shaoban
Liu, Haijiang
Li, Yongkai
Abstract
A battery pack for powering equipment includes a core battery pack, a first housing, and a second housing. The core battery pack has a capacity of outputting a constant amount of current to deliver at least 1000 Watt-hours of energy. The core battery pack includes multiple battery cells and a mating interface. The mating interface is configured to selectively and electrically couple the core battery pack with an interface of a piece of power equipment or a charger. The first housing includes a handle and is attached to the core battery pack. The second housing is attached to the core battery pack and is configured to dampen a force experienced by the core battery pack upon an impact.
A battery pack includes a housing having a positive terminal and a negative terminal. Battery cells are located within the housing and are selectively coupled to the positive terminal and coupled to the negative terminal. A battery management system is located within the housing and is configured to operate a first switch within the housing to selectively couple the battery cells and the positive terminal. A bleed circuit is electrically coupled between the positive terminal and the negative terminal. The bleed circuit includes a resistor and a second switch to selectively couple the positive terminal to the negative terminal. The battery management system is configured to open the first switch and close the second switch and measure a voltage drop across the resistor to detect a presence and type of voltage source connected to the positive terminal.
A battery system includes a battery assembly and an equipment interface. The battery assembly includes a battery pack, a battery housing enclosing the battery pack, a communication gateway, and a first electrical connector. The battery pack includes rechargeable battery cells. The communication gateway is configured to communicate using a first communication protocol and a second communication protocol different from the first communication protocol. The first electrical connector includes a plurality of first terminals. The equipment interface is configured to be coupled to a piece of equipment, and includes a second electrical connector including a plurality of second terminals. The second electrical connector is configured to mate with the first electrical connector to electrically coupled the plurality of first terminals with the plurality of second terminals to electrically couple the battery assembly to the equipment interface.
H05K 5/00 - Casings, cabinets or drawers for electric apparatus
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
A power system for power equipment includes a battery having a capacity of at least 300- Watt hours and including a battery housing substantially enclosing the battery and a receiver including electrical terminals provided on the receiver, the electrical terminals selectively and electrically coupled to the battery. The receiver is configured to selectively couple with a portion of the battery housing. The receiver is configured to be decoupled from the portion of the battery housing without the use of tools. The receiver includes a planar mounting surface including at least one aperture for receiving a threaded fastener. The receiver is coupled to the power equipment via a threaded fastener.
A cell module assembly includes a top frame, a bottom frame, multiple lithium-ion battery cells, a top collector plate, a bottom collector plate, and a curable adhesive. The top frame includes protrusions that define first multiple pockets. The bottom frame includes protrusions that define second multiple pockets axially aligned with the first multiple pockets. Each of the first and the second multiple pockets have multiple windows. The battery cells are received within a pocket in each of the first and second multiple pockets. The top collector plate is coupled to the top frame and includes multiple apertures above the first multiple pockets. The bottom collector plate is coupled to the bottom frame. The top collector plate and the bottom collector plate are electrically connected to the battery cells. The curable adhesive is received within each window in the first multiple pockets and couples each battery cell to the top frame.
A cell module assembly includes multiple lithium-ion battery cells connected in parallel and an electronic controller. The electronic controller is programmed to receive useful life data for a useful life indicator of the battery cells, save the life data to memory to create a life data history, determine a life measurement based on the life data history, compare the life measurement to a first end of life threshold, determine if the life measurement has met the first end of life threshold, provide a first end of life output indicating that the life measurement has met the first end of life threshold, compare the life measurement to a second end of life threshold, determine if the life measurement has met the second end of life threshold, and provide a second end of life output indicating that the life measurement has met the second end of life threshold.
A47L 9/00 - Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating actionStoring devices specially adapted to suction cleaners or parts thereofCarrying-vehicles specially adapted for suction cleaners
A battery system for power equipment includes a battery configured to removably connect to a receptacle, and a processing circuit of the battery configured to communicably interface with a processing circuit of the receptacle, wherein the battery and the receptacle are configured to electrically connect and transfer power from the battery through the receptacle to the power equipment, wherein the processing circuits of the battery and the receptacle are configured to transfer information between the battery and the receptacle, and wherein the processing circuits of the battery and the receptacle are configured to allow the transfer of power from the battery through the receptacle to the power equipment based on the information transferred between the battery and the receptacle.
A battery assembly includes a housing having a handle, rechargeable battery cells disposed within the housing, and a mating feature configured to selectively connect the battery assembly with a receptacle of at least one of a power equipment and a charging station. The mating feature includes a connector having at least two electrical ports electrically connected to the battery cells, and a data port configured to provide data communication between the battery assembly and at least one of a power equipment and a charging station. The mating feature also protrudes away from a side portion of the housing.
B25F 5/02 - Construction of casings, bodies or handles
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
One embodiment of the invention relates to an electronic fuel injection module including a throttle body including a throat extending between an inlet port and an outlet port and a fuel delivery injector unit. The fuel delivery injector unit includes a cavity, a fuel inlet, a magnetic assembly, a pumping assembly, a spring, a valve seat, a valve, and an out valve. The fuel inlet receives fuel and directs fuel into the cavity. The magnetic assembly is within the cavity and includes a magnet, a pole, and a hollow sleeve. The pumping assembly includes a bobbin and piston. The bobbin is configured to move the pumping assembly. The piston is coupled to the bobbin. The valve seat is located at one end of the piston. The valve selectively allows fuel to flow into a pressure chamber. The out valve is configured to provide fuel to the throat.
F02M 57/02 - Injectors structurally combined with fuel-injection pumps
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 37/14 - Feeding by means of driven pumps the pumps being combined with other apparatus
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
An internal combustion engine (106) is provided including an engine block (114) including a cylinder (116), a piston (118) configured to reciprocate within the cylinder (116), a crankshaft (110) coupled to the piston (118) and configured to rotate about a crankshaft axis (111), a power source (14) comprising at least two voltage output terminals (32, 38), a starter motor (16) configured to crank the crankshaft (110) and start the engine (106) upon receiving power from the power source (14), and a power tool switch component (12) configured to selectively provide power from the power source (14) to the starter motor (16). The component (12) includes a housing (20), a user interface (182), a printed circuit board assembly (25) positioned within the housing (20), a first set of terminals (29) electrically connected to the power source (14), and a second set of terminals (27) electrically connected to the starter motor (16). The printed circuit board assembly (25) includes one or more circuits (62, 64, 66, 68) having machine-executable instructions configured to control operation of the starter motor (16) and the power tool switch component (12).
An engine including an engine block having a cylinder defining a front of the engine, a blower housing coupled to the engine block and defining a hot half and a cool half opposite the front half, a starter mount assembly coupled to the blower housing and positioned within the cool half, an electric starter motor retained by the starter mount assembly, and a battery mounted to the blower housing and positioned in the cool half. The battery is electrically coupled to the electric starter motor.
A01D 34/08 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters hand-guided by a walking operator
A01D 34/10 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters hand-guided by a walking operator with motor driven cutters or wheels
A01D 34/68 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
A first battery pack that can be connected to a second battery pack is disclosed. Each battery pack includes a first connection socket and a second connection socket that allow the pair of battery packs to be connected to each other such that the battery cells in each battery pack are connected in series. Each battery pack includes a battery socket accessible through the outer housing of the battery pack. When the pair of battery packs is connected together, only one of the battery sockets is accessible. Each of the battery packs are configured such that the maximum output of the stack of battery packs is limited and only one of the battery sockets is accessible. When connected, the pair of battery packs can be used with power tools designed for either a first voltage and a second voltage higher than the first voltage.
A battery assembly including a battery pack having a battery pack housing, an upper modular housing portion coupled to the battery pack housing positioned at a first end of the battery pack housing, a lower modular housing portion coupled to the battery pack housing positioned at a second end of the battery pack housing, and a handle formed as part of the upper modular housing portion. The battery assembly further includes multiple battery cells disposed within the battery pack housing, a mating feature including multiple ports electrically connected to the multiple battery cells and structured to supply power from the multiple battery cells through the ports and is structured to selectively connect the battery assembly with a receptacle of at least one of a piece of power equipment and a charging station. The mating feature is located on the first modular housing portion.
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/22 - Balancing the charge of battery modules
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
An apparatus including an internal combustion engine, an electric motor configured to start the internal combustion engine, a brake mechanism, a release mechanism movable to a first position to release the brake mechanism, a switch actuated by the release mechanism, a pull rope, a sensor configured to output a signal based on the pull rope being actuated, and a control module coupled to the switch and the sensor. The switch is configured to provide a switch input to the control module when the release mechanism is in the first position. The sensor is configured to provide a sensor input to the control module when the pull rope is actuated. The control module activates the electric motor in response to the switch input and the sensor input.
A backpack system for use with a power tool, the system including a harness system configured to extend at least over a user's shoulders, and a carrier portion configured to be coupled to the harness system. At least one battery pack is housed within the carrier portion, and at least one electrical connector is coupled to the at least one battery pack, with the at least one battery pack being configured to provide power to the power tool. The carrier portion may further include at least one opening formed therein to allow the passage of air at least partially through the carrier portion. The power tool may be a string trimmer or a blower. Additionally, one or more carrier portions may be recharged in a recharging station which is configured to allow for hands-free connection of a carrier portion to a user's harness system.
A multi-configurable mower deck for use with a lawnmower, the mower deck including a top surface, a front leading edge, at least one side wail extending from the top surface, and at least one partial rear wall extending from the top surface. The mower deck includes both a side-discharge opening formed on one side of the mower deck and a rear- discharge opening formed through the at least one partial rear wall. Additionally, the mower deck may include a selectively removable secondary front baffle configured to block the flow of clippings through the side-discharge opening and direct the flow of clippings toward the rear-discharge opening. The mower deck may also include at least one selectively removable rear baffle, wherein the at least one selectively removable rear baffle is configured to at least partially block the rear-discharge opening.
A01D 34/66 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
A01D 34/685 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with two or more cutters
A01D 34/71 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis with means for discharging mown material
A01D 43/06 - Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
A01D 67/00 - Undercarriages or frames specially adapted for harvesters or mowersMechanisms for adjusting the framePlatforms
19.
ZERO TURN RADIUS LAWNMOWER HAVING FRONT AND REAR WHEELS RELATED IN ROTATION ABOUT A SINGLE PIVOT AXIS
A ride-on vehicle, such as a zero turn radius lawnmower, includes a main chassis having first and second pivot joints, a first rocker arm having a caster wheel on a first end portion and a drive wheel on a second end portion, and a second rocker arm having a caster wheel on a first end portion and a drive wheel on a second end portion, wherein the first rocker arm and the second rocker arm are independently pivotally coupled to the respective first and second pivot joints of the main chassis at a location between the caster wheels and the drive wheels. The ride-on vehicle may also include a modular mower deck assembly with a plurality of mower deck modules having a blade assembly, an electric blade motor configured to provide rotation to the blade assembly, and an attachment assembly configured to enable attachment between adjacent mower deck modules.
A01D 34/66 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
A01D 34/412 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
A01D 34/63 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
A01D 34/64 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/78 - Driving mechanisms for the cutters electric
An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder and configured to reciprocate in the cylinder, an electronic throttle control system including a motor and a throttle plate, an air flow sensor configured to detect an air mass flow rate, a fuel system for supplying a controlled amount of fuel to the cylinder including a fuel injector, and an engine control unit coupled to the fuel system and the electronic throttle control system. The engine control unit is configured to determine engine speed data including a current engine speed, a previous engine speed, and a desired engine speed, control a fuel injection duration based on the engine speed data, determine air-fuel ratio data comprising a current air-fuel ratio and a desired air-fuel ratio, and control a throttle plate position based on the air-fuel ratio data.
An engine operation detection system includes an engine including a spark plug and a spark plug wire, and an engine run sensor including a signal wire including an antenna, the antenna configured to receive a spark plug signal from the spark plug wire, a data acquisition output wire outputting an engine on/off condition signal, a power supply providing power to the engine run sensing circuit, and an engine run sensing circuit configured to transform the spark plug signal into the engine on/off condition signal output via the data acquisition output wire.
An internal combustion engine includes an engine block including a cylinder and a muffler assembly configured to receive exhaust gases from the cylinder. The muffler assembly includes a housing defining an interior volume and including an exhaust inlet and an exhaust outlet, and a baffle assembly positioned within the interior volume. The baffle assembly includes a plurality of chambers in fluid communication with each other. The plurality of chambers are in fluid communication with the exhaust inlet and the exhaust outlet so that the plurality of chambers are configured to cause exhaust gases to be directed through the muffler assembly from the exhaust inlet to the exhaust outlet through four passes in the baffle assembly before exiting through the exhaust outlet.
A portable generator includes a CO sensor module to sense CO levels in the environment surrounding the portable generator. The CO sensor module senses high levels of CO and sends a signal to shut down the engine on the portable generator. The CO sensor module alerts the user by emitting an LED light whether the CO sensor module is functioning properly, improperly or if high CO levels are detected. The CO sensor module is removable from a control panel of the portable generator to be replaced or maintained by the user per a replacement or maintenance schedule.
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
An electric powerhead includes a housing including a mounting assembly, wherein the mounting assembly includes a mounting plate and a mounting insert. The mounting plate includes a shaft opening and a plurality of first openings arranged in a standard vertical shaft engine mounting pattern and the mounting insert includes a plurality of second openings aligned with the plurality of first openings. The electric powerhead further includes an electric motor positioned within the housing, wherein the electric motor includes an output shaft that extends through the shaft opening of the mounting assembly and wherein the output shaft is configured to rotate about an axis of rotation.
An electric powerhead includes a housing including a mounting plate including a shaft opening and a plurality of first openings arranged in a standard horizontal shaft engine mounting pattern. The housing also includes a base including a plurality of second openings arranged in a standard horizontal shaft engine support pattern. The electric powerhead further includes an electric motor positioned within the housing, where the electric motor includes an output shaft that extends through the shaft opening of the mounting plate and where the output shaft is configured to rotate about an axis of rotation.
A01D 34/58 - Driving mechanisms for the cutters electric
A01D 34/37 - Driving mechanisms for the cutters electric
A01D 34/42 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
A01D 34/46 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders hand-guided by a walking operator
An on-demand generator starting system and method is disclosed. The generator starting system is included as part of a standby or portable generator that includes one or more outlets that provide electrical power to an electrical device. The operating system includes a generator controller that monitors for a request for power from the electrical device connected to the outlet. When the control circuit of the generator controller determines that electric power is required from the generator, the control circuit initiates operation of the internal combustion engine. After the internal combustion engine starts, the control circuit operates a relay to provide power from the generator to the outlet of the generator. When the electrical device is no longer operating, the control circuit of the generator controller terminates operation of the internal combustion engine of the generator. In this manner, the generator operates only when the electrical device is requesting electrical power.
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
F02N 11/00 - Starting of engines by means of electric motors
F02P 1/00 - Installations having electric ignition energy generated by magneto- or dynamo-electric generators without subsequent storage
H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H02J 9/08 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over requiring starting of a prime-mover
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
A pressure washer includes a water pump, a spray gun fluidly coupled to an outlet of the water pump, an electric motor coupled to the water pump to drive the water pump, a battery module configured to provide battery electricity, an electrical plug configured to receive grid electricity from a power outlet, and a power management system electrically connected to the battery module, the electrical plug, and the electric motor. The power management system is configured to selectively provide battery electricity from the battery module and grid electricity from the electrical plug to the electric motor to drive the water pump.
B05B 1/02 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops
B05B 1/30 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
B05B 7/12 - Spray pistolsApparatus for discharge designed to control volume of flow, e.g. with adjustable passages
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05B 9/08 - Apparatus to be carried on or by a person, e.g. of knapsack type
B05B 9/04 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible containerSpraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pump
B05B 12/00 - Arrangements for controlling deliveryArrangements for controlling the spray area
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
B05B 11/00 - Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
B08B 3/02 - Cleaning by the force of jets or sprays
28.
ROBOTIC LAWN MOWER INCLUDING REMOVABLE RECHARGEABLE BATTERY MODULE
A robotic lawn mower includes a first wheel driven by a first electric wheel motor, a second wheel driven by a second electric wheel motor, a cutting implement driven by an electric cutting implement motor, a power system for powering the electric wheel motors and the electric cutting implement motor, and a controller configured to control operation of the electric wheel motors and the electric cutting implement motor to autonomously mow a yard. The power system includes multiple removable rechargeable battery modules and multiple receptacles, each receptacle configured to receive one of the battery modules.
A01D 34/02 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
A01D 34/10 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters hand-guided by a walking operator with motor driven cutters or wheels
A battery system includes a battery including one or more rechargeable battery cells, a battery mating face, one or more battery electrical terminals positioned on the battery mating face, and a female guide opening extending into the mating face. The battery electrical terminals electrically coupled to the rechargeable battery cells. The battery system also includes a direct current (DC) power adapter including an adapter mating face, one or more adapter electrical terminals positioned on the adapter mating face and configured to engage the battery electrical terminals, a male guide protrusion extending from the adapter face and configured to mate with the female guide opening, and a DC outlet electrically coupled to the adapter electrical terminals, the DC outlet configured to supply power to a connected electrical device.
An electronic governor system for use with an internal combustion engine includes an air-fuel mixing device including a throttle plate, a motor having a motor shaft and an electrical connection, and a controller supported by a printed circuit board. The controller is configured to operate the motor. The throttle plate is coupled to the motor shaft and is movable to one or more positions between closed and wide-open and the electrical connection is directly coupled to the printed circuit board.
An internal combustion engine includes an engine block including a cylinder, a horizontally oriented crankshaft, an air-fuel mixing device configured to provide an air-fuel mixture to the cylinder, and an air filter assembly configured to provide filtered air to the air-fuel mixing device. The air filter assembly includes a housing comprising a first housing end portion and a second housing end portion and defining an interior volume, a filter element positioned within the interior volume dividing the interior volume into a filtered volume and an unfiltered volume, a gap between the filter element and the housing configured to allow air to flow between the filter element and the housing, an air intake, and a filtered air outlet.
An electric powerhead includes a housing including a mounting plate, wherein the mounting plate includes a shaft opening, multiple first openings arranged in a standard vertical shaft engine mounting pattern and multiple second openings arranged in a standard horizontal shaft engine mounting pattern, an electric motor positioned within the housing, wherein the electric motor includes an output shaft that extends through the shaft opening of the mounting plate and wherein the output shaft is configured to rotate about an axis of rotation, and a support configured to be removably attached to the housing, wherein with the support attached to the housing, the output shaft is arranged horizontally.
An internal combustion engine includes an engine block including a cylinder and a cylinder head. The cylinder head includes an intake valve, an exhaust valve, a piston positioned within the cylinder and configured to reciprocate within the cylinder, a crankshaft driven by the piston and configured to rotate about a crankshaft axis, a camshaft driven by the crankshaft via a timing gear, and a cam gear coupled to the camshaft. The cam gear includes an oil filter ring attached to the cam gear and a filter groove formed by the cam gear and the oil filter ring, wherein the filter groove is configured to collect debris from oil as oil moves into the filter groove due to centrifugal forces from the rotation of the cam gear.
A scalable power unit for powering one or more electric motors of a riding vehicle and/or a piece of outdoor power equipment. The scalable power unit includes a number of interconnected battery packs. The battery packs can be received in a battery tray or stacked to form the scalable power unit. Each battery pack can be removed and used separately or added to a combination of battery packs. A control unit selectively opens and closes switching elements to separately control the connections between the battery packs and an electrical load, such as a motor. During charging, the control unit opens and closes the switching elements to control the charging rate of the individual battery packs. When the battery packs are connected to an electric load, the control unit controls the state of the switching elements to selectively discharge the battery packs to power the riding vehicle and/or electric loads.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
35.
DUAL MECHANISM COMPRESSION RELEASE FOR INTERNAL COMBUSTION ENGINE
An internal combustion engine includes an engine block including a first cylinder including a first intake valve and first exhaust valve and first intake and exhaust pushrods, and a second cylinder including a second intake valve and second exhaust valve and second intake and exhaust pushrods, and a camshaft. The camshaft includes cams configured to engage respective pushrods to open and close respective valves, a movable first compression release member comprising a first tab, and a movable second compression release member comprising a second tab. In a first position, the first tab and second tab are adjacent the first intake cam and second exhaust cam, respectively, to engage the first intake pushrod and second exhaust pushrod. In a second position, the first tab and second tab are spaced apart from the first intake cam and second exhaust cam, respectively, to not engage the first intake pushrod and second exhaust pushrod.
F01L 13/08 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during startingModifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for changing compression ratio
F01L 1/04 - Valve drive by means of cams, camshafts, cam discs, eccentrics, or the like
An internal combustion engine including an engine block including a cylinder, a piston positioned within the cylinder, wherein the piston is configured to reciprocate in the cylinder, a fuel system for supplying an air-fuel mixture to the cylinder, an engine control unit, and a starting system including a recoil starter configured for manual starting of the internal combustion engine, a receptacle, and a removable battery, wherein the removable battery is configured to be selectively inserted into and removed from the receptacle, wherein the battery is configured to provide power to the engine control unit sufficient to enable starting the engine with a single pull of the recoil starter.
A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The end cap includes a protrusion extending therefrom and terminating at an end face, the end face proximate the magnetic assembly and the protrusion is configured to redirect fuel vapor toward the outlet port.
An internal combustion engine includes an engine block, an electric motor, a worm coupled to and rotated by the electric motor, a worm gear coupled to and configured to be rotated by the worm, a crankshaft configured to rotate about a crankshaft axis, a flywheel including a flywheel cup having flywheel protrusions, a clutch driven by the worm gear and configured to engage the one or more flywheel protrusions such that the crankshaft is rotated, and an energy storage device electrically coupled to the electric motor. The clutch is configured to disengage from the flywheel protrusions when the rotational speed of the crankshaft exceeds the rotational speed of the worm gear. When the electric motor is activated, the electric motor rotates the worm rotating the worm gear, which causes the clutch to engage the flywheel protrusions, transferring worm gear rotation to the flywheel and the crankshaft to rotate the engine for starting.
A generator includes an elongated tubular frame, an internal combustion engine attached to the elongated tubular frame, the engine including an engine block including a cylinder and a crankshaft configured to rotate about a crankshaft axis. The generator further includes a fuel tank attached to the elongated tubular frame. The elongated tubular frame is configured to simultaneously support the internal combustion engine and the fuel tank.
A spray gun for use with a pressure washer includes a spray gun body, an inlet, a primary flow path for conducting a primary fluid flow, a secondary flow path for conducting a secondary fluid flow, and an inlet flow path for receiving a flow of pressurized water from the pressure washer via the inlet. The inlet flow path directs the pressurized water into the primary flow path. The spray gun further includes multiple chemical containers carried on the spray gun body, each chemical container configured to contain a different chemical, and a selector valve movable among a number of positions to fluidly couple one of the chemical containers with the secondary flow path.
A small air-cooled internal combustion engine includes an aluminum engine block including a cylinder extending along a longitudinal cylinder axis and a block mounting surface, a piston configured to reciprocate within the cylinder, a crankshaft coupled to the piston and configured to rotate about a crankshaft axis in response to reciprocation of the piston, and an aluminum crankcase cover including a cover mounting surface. The block mounting surface contacts the cover mounting surface. The block mounting surface and the cover mounting surface are both positioned at an angle to the crankshaft axis and the angle is not 90 degrees.
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
F02B 75/34 - Ultra-small engines, e.g. for driving models
42.
SMALL AIR-COOLED ENGINE ASSEMBLY WITH DRY SUMP LUBRICATION SYSTEM
An engine assembly includes a small air-cooled engine and a dry sump lubrication system including an external oil reservoir, wherein the dry sump lubrication system has an overall oil capacity that provides at least five hundred hours of engine oil life.
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
F02B 75/00 - Other engines, e.g. single-cylinder engines
F16N 19/00 - Lubricant containers for use in lubricators or lubrication systems
An internal combustion engine includes a pushrod configured to reciprocate in a pushrod chamber to actuate one of an intake valve and an exhaust valve, a breather including a breather chamber and a valve, and a drain conduit fluidly coupling the breather chamber to the pushrod chamber. The pushrod movable between multiple positions. The valve moves between an open position allowing breather gases to exit the breather chamber and a closed position preventing breather gases from exiting the breather chamber and the valve is configured to move from the closed position to the open position in response to a breather chamber pressure in excess of a threshold pressure. The drain conduit is closed with the pushrod in a first position to allow lubricant to accumulate in the breather chamber. The drain conduit is open with the pushrod in a second position to allow lubricant to drain from the breather chamber.
A battery for equipment having a charging system providing a charging voltage is provided. The battery includes a primary power supply, a secondary power supply, and a battery management system configured to at least one of (a) selectively increase the charging voltage to a boosted voltage and (b) selectively decrease the charging voltage to a bucked voltage, and provide at least one of the boosted voltage and the bucked voltage to the primary power supply.
A starter motor that includes an integrated solid state switching device. The solid state switching device is mounted within the outer housing of the starter motor such that the entire starter motor can be installed as a single unit. In one embodiment, the solid state switching device includes a MOSFET positioned on the low side of the starter motor. The solid state switching device opens and closes to control the flow of current through the starter motor. In another embodiment, the solid state switching device is positioned on the high side of the starter motor. The solid state switching device can include a speed sensing circuit to prevent operation of the starter motor when the internal combustion engine is operation, a crank limiting circuit that limits the amount of time the starter motor can operate without starting the internal combustion engine and/or a thermal limiting circuit to prevent operation during overheating of the starter motor.
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
H02K 11/20 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
H02K 23/52 - Motors acting also as generators, e.g. starting motors used as generators for ignition or lighting
A battery system for use with outdoor power equipment includes a housing having a housing height, a housing depth, and a housing width, a positive terminal, a negative terminal, and a lithium-ion battery pack positioned within the housing, the lithium-ion battery pack electrically coupled to the positive terminal and the negative terminal, wherein the positive terminal and the negative terminal are spaced apart by a distance substantially the same as a standard distance between terminals of a standard lead-acid battery, wherein the housing height is substantially the same as a standard height of the standard lead-acid battery, wherein the housing depth is substantially the same as a standard depth of the standard lead-acid battery, wherein in the housing width is substantially the same as a standard width of the standard lead-acid battery, and wherein a volume of the lithium-ion battery pack is less than an interior volume of the housing.
An engine includes at least one piston, a rotatable crankshaft, a starter motor, a lithium-ion battery, and a charging system. The rotatable crankshaft is coupled to the at least one piston. The starter motor is configured to selectively initiate rotation of the crankshaft. The lithium-ion battery is in electrical communication with the starter motor and has at least one cell. The charging system is powered by motion of at least one component of the engine. The charging system provides energy to the lithium-ion battery to charge the lithium-ion battery. The engine has a starting condition, a running condition, and a stopping condition. The charging system continuously applies a voltage potential to the at least one cell while the engine is in a running condition.
B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
F02N 11/08 - Circuits specially adapted for starting of engines
48.
WELDED ENGINE BLOCK FOR SMALL INTERNAL COMBUSTION ENGINES
A small air-cooled internal combustion engine includes an aluminum cylinder block, an aluminum cylinder head welded to the aluminum cylinder block, and a weld securing the aluminum cylinder block to the aluminum cylinder head, wherein a joint having a first length is formed between the aluminum cylinder block and the aluminum cylinder head and wherein the weld extends for a second length that is at least 25% of the first length.
A battery pack for use to provide starting power of an internal combustion engine. The battery pack includes an outer housing that encloses a plurality of individual battery cells organized into two battery groups. A charging circuit is contained within the outer housing, which allows the battery cells to be recharged without the need for a charging device other than the battery pack. The charging circuit allows the battery cells to be recharged from either a wall outlet or from the alternator of the internal combustion engine. The battery pack further includes a switching circuit that can configure the battery groups in either a parallel mode or a series mode. In the series mode, the output voltage of the battery pack is increased for starting a cold engine. In the parallel mode, the amount of current available from the battery pack is increased.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A pressure washer includes a pump for pressurizing a primary fluid flow, the pump including a pump inlet for receiving fluid from a common fluid source and a pump outlet for supplying a pressurized primary fluid and a jet pump including a primary fluid inlet fluidly coupled to the pump outlet, a secondary fluid inlet configured to receive fluid from the common fluid source, and a fluid outlet. In a high pressure operating mode, all of the pressurized primary fluid flows through the jet pump and exits through the fluid outlet of the jet pump. In a high flow operating mode, all the pressurized primary fluid flows through the jet pump and entrains a secondary fluid supplied through the secondary fluid inlet from the common fluid source so that the secondary fluid also flows through the jet pump, resulting in a combined fluid flow of the primary fluid and the secondary fluid that exits through the fluid outlet of the jet pump.
An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder and configured to reciprocate within the cylinder, a crankshaft driven by the piston, a fuel system for supplying an air-fuel mixture to the cylinder, a starter motor configured to initiate rotation of the crankshaft to start the engine, a cover having a vent opening, a blower housing located between the cover and the engine block for directing cooling air toward the engine block, wherein the blower housing comprises a receptacle electrically coupled to the starter motor, a fan configured to draw the cooling air into the blower housing through the vent opening in the cover to cool the engine block, and a rechargeable battery pack removably attached to the receptacle, wherein the rechargeable battery pack is configured to power the starter motor to start the engine.
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
A mower comprises a deck comprising an underside cavity with a first interior profile; and an deck insert mounted within the underside cavity. The deck insert has an deck insert interior with a second interior profile different than the first interior profile.
An electronic governor system includes a motor, a transmission coupled to the motor, a throttle plate coupled to the transmission, the throttle plate movable to multiple positions between closed and wide-open, wherein power is supplied to the motor to move the throttle pate to a desired position and wherein power is not supplied to the motor to maintain the throttle plate in the desired position.
A battery system for use with outdoor power equipment includes a base including a positive terminal, a negative terminal, and a battery receptacle electrically coupled to the positive terminal and the negative terminal, wherein the positive terminal and the negative terminal are spaced apart by a distance substantially the same as a standard distance between terminals of a standard lead-acid battery, and a lithium-ion battery removably attached to the battery receptacle, wherein when attached, the lithium-ion battery is electrically coupled to the positive terminal and the negative terminal via the battery receptacle.
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
56.
INTERNAL COMBUSTION ENGINE INCLUDING ELECTRIC STARTING SYSTEM POWERED BY LITHIUM-ION BATTERY
An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder, wherein the piston is configured to reciprocate in the cylinder along a cylinder axis, a crankshaft configured to be driven by the piston, a fuel system for supplying an air-fuel mixture to the cylinder, and an electric starting system including a starter motor, a battery receiver, and a lithium-ion battery removably attached to the battery receiver, wherein the lithium-ion battery is configured to power the starter motor to start the engine, wherein the lithium-ion battery includes at least one lithium-ion cell having a cell axis, and wherein the battery receiver is positioned so that with the lithium-ion battery attached to the battery receiver, the cylinder axis and the cell axis are not parallel to one another.
F02N 11/08 - Circuits specially adapted for starting of engines
A01D 34/68 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
A pressure washer (110) includes a prime mover (114), a water pump (116), the water pump (116) including a pump inlet (128) for receiving fluid from a fluid source and a pump outlet (130) for supplying a pressurized primary fluid, a jet pump (200) including a primary fluid inlet (205) fluidly coupled to the pump outlet (130), a secondary fluid inlet (230), and a fluid outlet (225), and a spray gun (118) configured to be fluidly coupled to the fluid outlet (225) of the jet pump (200), the spray gun (118) including a spray gun outlet (265) having a variable effective flow area. Wherein, in operation, in a high pressure operating mode, the pressurized primary fluid flows through the jet pump (200) and exits through the fluid outlet (225) of the jet pump (205), and in a high flow operating mode, the pressurized primary fluid flows through the jet pump (200) and entrains a secondary fluid supplied through the secondary fluid inlet(230), resulting in a combined fluid flow.
An engine includes a carburetor, a governor assembly, and a vacuum actuator. The carburetor includes a throttle plate configured to control a fluid flow, a throttle lever coupled to the throttle plate, and an intake port in fluid communication with an engine vacuum pressure. The governor assembly includes a governor, a governor linkage coupled to the governor and the throttle lever, and a governor spring coupled to the throttle lever to bias the throttle plate towards the fully open position. The vacuum actuator includes an actuator housing, a pressure-sensitive member positioned in the actuator housing, an actuator linkage directly coupled to the governor spring and also coupled to the pressure-sensitive member for movement in response to the engine vacuum pressure, and an actuator spring coupled between a fixed attachment point and the actuator linkage to bias the actuator linkage to increase the tension on the governor spring.
A snow thrower (920) comprises an auger housing (930), a chute (944) extending from the auger housing (930), a first snow engaging blade (950) rotatably supported within the auger housing (930) opposite the chute (944) and a second snow engaging blade (952A, 952B) rotatably supported within the auger housing (930) on a first side of the first snow engaging blade (950). The first snow engaging blade (950) and the second snow engaging blade (952A, 952B) are rotatable at different speeds relative to one another.
E01H 5/08 - Apparatus propelled by animal or engine powerApparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by driven elements
A lawn mower includes an internal combustion engine (112), an electric motor (120) configured to start the engine (112), a blade driven by the engine(112), and an assembly for stopping at least one of the blade and the engine. The assembly includes a brake mechanism (514), a release mechanism (126) movable to an engaged position to release the brake mechanism (514), an interlock (128) configured to selectively prevent the release mechanism (126) from moving to the engaged position, and an interface (122) allowing an operator to release the interlock (128) to allow the release mechanism (126) to move to the engaged position. The lawn mower further includes a switch (432) actuated by the release mechanism (126) and a control module (430) coupled to the switch (432) so that the switch provides a signal to the control module (430) when the release mechanism (126) is in the engaged position and the control module (430) turns on the electric motor (120) in response to the signal to start the engine (112).
A01D 34/68 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
A mower blade (50) includes a body including an axis of rotation (113) about which the blade (50) is configured to rotate, a first body portion extending in a first direction from the axis of rotation (113), and a second body portion extending in a second opposite direction from the axis of rotation, wherein the second body portion is asymmetrically shaped with respect to the first body portion such that the center of mass of the blade (50) lies on the axis of rotation (113).
A standby generator includes a base and a number of walls extending from the base including a wall having a removable panel. A cover is coupled to the wall having the removable panel and is moveable between a closed position and an open position. When the cover in the open position, the removable panel may be removed from the standby generator.
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
An internal combustion engine includes a piston (118), a crankshaft (116) having a journal (150), and a connecting rod (138). The connecting rod (138)includes a first end (144) coupled to the piston (118) and a second end (148) coupled to the journal (150) of the crankshaft (116). The second end (148) of the connecting rod (138) includes a bearing surface configured to interface with the journal (150), and further includes an open portion extending through the second end from the bearing surface to the exterior of the second end (148).
An engine includes an engine cover, a blower fan, and a recoil starter having a cover. The engine cover includes an inlet aperture and is configured to house working components of the engine. The blower fan is configured to disperse air received through the inlet aperture to cool the working components of the engine. The recoil starter cover has an opening for air to pass through and is fastened to the underside of the engine cover.
F02N 3/02 - Other muscle-operated starting apparatus having pull-cords
F02P 5/02 - Advancing or retarding electric ignition sparkControl therefor non-automaticallyAdvancing or retarding electric ignition sparkControl therefor dependent on position of personal controls of engine, e.g. throttle position
A carburetor includes a passageway having a constricted section, a nozzle directed into the passageway proximate the constricted section, and a shaft having a surface that at least partially defines the constricted section. The nozzle is configured to deliver fuel to air passing through the passageway, and the surface includes a contour that is configured to be moved relative to the passageway to change the area of the passageway through the constricted section.
F02M 9/02 - Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly typeCarburettors having fuel-air mixing chambers of variable shape or position having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage
F02D 9/14 - Throttle valves specially adapted thereforArrangements of such valves in conduits having slidably-mounted valve-membersThrottle valves specially adapted thereforArrangements of such valves in conduits having valve-members movable longitudinally of conduit the members being slidable transversely of conduit
F02B 63/00 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices
F02B 65/00 - Adaptations of engines for special uses not provided for in groups or Combinations of engines with other devices, e.g. with non-driven apparatus
An engine includes a breather conduit, an intake conduit, and an air filter assembly. The air filter assembly includes a case and a filter element. The case includes a first opening for receiving the breather conduit, and a second opening for receiving the intake conduit. The filter element includes a first aperture, a second aperture, and filter media at least partially defining an interior chamber of the filter element. The first and second apertures of the filter element are at least partially aligned with the first and second openings of the case, respectively. The filter element is positioned in the case such that the breather conduit and the intake conduit are directed to or from the interior chamber of the filter element, such that air filtered by the filter media mixes with unfiltered gases from the breather conduit in the interior chamber of the filter element prior to entering the intake conduit.
A two stage snow thrower (20) comprises an auger (32), and a snow discharge housing (38). In one implementation, the auger comprises an auger flight assembly (62) comprising first and second blades (76, 78) supported by first and second supports (72, 74) offset from one another by 90 degrees. In one implementation, the snow discharge housing comprises a one piece deep drawn auger housing (100). In one implementation, the snow discharge housing further comprises a chute (312) extending from the housing, an inner ring (330) coupled to one of the chute and the housing, an outer ring (332) about the inner ring and coupled to the other of the chute and the housing, detents (334) associated with one of the inner ring and outer ring; and a projection (336) associated with the other of the inner ring and outer ring, wherein the projection (336) is resiliently biased into one of the detents (334) to releasably retain the chute in one of a plurality of positions.
E01H 5/04 - Apparatus propelled by animal or engine powerApparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically
E01H 5/07 - Apparatus propelled by animal or engine powerApparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by non-driven elements, e.g. scraper blades and conveying dislodged material by driven or pneumatic means
A snow thrower impeller (100) includes a layer of material comprising a blade support wall (118) and blades (120) extending from the blade support wall (118).
E01H 5/09 - Apparatus propelled by animal or engine powerApparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
E01H 5/04 - Apparatus propelled by animal or engine powerApparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically
A spray gun (210) for controlling a pressurized flow of water from a water source includes a housing (212), a garden hose coupling (214), a spray head (216), a valve (220), a trigger (222), and a mechanism coupled to the trigger and the valve. The housing (212) has a conduit (218) extending through the housing (212), defining a flow path for the pressurized flow of water. The garden hose coupling (214) is located on a first end of the conduit, and the pressurized flow of water enters the spray gun (210) by way of the garden hose coupling (214). The spray head (216) is connected to the housing (212) on a second end of the conduit, and the pressurized flow of water exits the spray gun (210) by way of the spray head (216). The valve (220) includes at least one of a ball valve and a barrel valve, and is positioned along the conduit between the first and second ends of the conduit. The valve (220) is rotatable relative to the conduit to open, partially close, and fully close the flow path. Movement of the trigger (222) is received by the mechanism and converted to a rotation of the valve.
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05B 11/00 - Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
B08B 3/02 - Cleaning by the force of jets or sprays
A nozzle for use with a sprayer, such as a spray gun for a pressure washer or a garden hose system, includes a body, which has an inlet for receiving a pressurized flow of water. The nozzle further includes first and second outlets, and first and second passages. The first and second outlets are formed in an end of the body. The first passage extends between the inlet and the first outlet, and the second passage extends between the inlet and the second outlet. The first and second passages are substantially straight and parallel to one another. During operation of the nozzle, the pressurized flow of water from the inlet is split, passes through the first and second passages, and exits the body from the first and second outlets.
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05B 7/08 - Spray pistolsApparatus for discharge with separate outlet orifices, e.g. to form parallel jets, to form intersecting jets
A garden hose booster system (110) includes a pump (134) for pressurizing water, a motor connected to and designed to drive the pump, and a housing supporting the pump and the motor. The garden hose booster system further includes an inlet conduit (138), an outlet conduit (142), and a storage container (122). The inlet has a first garden hose coupling on an end thereof, and extends into the housing to direct the water to the pump. The outlet conduit has a second garden hose coupling on an end thereof, and extends out of the housing to direct the water from the pump. The storage container includes a bottom designed to be mounted to the top of the housing and a side wall extending upward from the bottom. The side wall and the bottom form an open volume within which a garden hose (188) may be piled or coiled for storage thereof. The outlet conduit extends into the open volume of the storage container such that the garden hose stored in the storage container may be coupled to the second garden hose coupling and may receive a boosted water flow during operation of the garden hose booster system.
A01G 25/00 - Watering gardens, fields, sports grounds or the like
B65H 75/40 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
73.
OVERHEAD VALVE AND ROCKER ARM CONFIGURATION FOR A SMALL ENGINE
A single-cylinder, four-stroke cycle, internal combustion engine arranged in an overhead valve configuration includes a first valve train and a second valve train. The first valve train includes a first cam on a camshaft, a first pushrod driven by the first cam, a first rocker arm attached to the first pushrod, and an exhaust valve driven by the first rocker arm. The second valve train includes a second cam on the camshaft, a second pushrod driven by the second cam, a second rocker arm attached to the second pushrod, and an intake valve driven by the second rocker arm. The first rocker arm is longer than the second rocker arm.
F02B 75/16 - Engines characterised by number of cylinders, e.g. single-cylinder engines
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
An engine includes an exhaust conduit (150) having an exhaust port on an end of the exhaust conduit. The exhaust conduit has an angled inside surface that has a cross section that widens toward the exhaust port. The engine further includes a muffler (128) having a housing (136) with an intake pipe (168). The intake pipe is inserted through the exhaust port such that the intake pipe is wedged into the angled inside surface of the exhaust conduit.
A cover system for an internal combustion engine having an overhead valve or overhead cam configuration includes a cover attached to a head plate. The cover has sides extending from a top surface and terminating in a flange with an overhang. The overhang includes a catch. The head plate has sides extending from a bottom surface and terminating in a curl. The flange and the overhang are positioned adjacent to the curl with the catch engaging an end of the curl.
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
A blower system for an engine includes a base of a blower scroll coupled to an engine crankcase. The base has a bottom wall with an opening sized to accommodate an end of a crankshaft. The base also has a sidewall extending away from the crankcase. The blower system further includes a blower housing fastened to the base, without the use of threaded fasteners. Together the blower housing and the base form a chamber having an inlet and an outlet. Also, the blower system includes a fan within the chamber. The fan is driven by the crankshaft and is designed to direct a flow of air through the outlet of the chamber.
E01H 1/08 - Pneumatically dislodging or taking-up undesirable matterDrying by heat only, or by streams of gasCleaning by projecting abrasive particles
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
A booster system for use with a garden hose includes a water pump (130), a garden hose, and a hose structure. The water pump has a motor and is designed to produce a maximum water pressure of less than 1000 psi. The garden hose connector is connected to the pump. The hose storage structure for holding a garden hose is proximate to the pump. The booster system also includes a switch for engaging and disengaging the pump.
B05B 3/04 - Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
B05B 9/04 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible containerSpraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pump
patents
