Abstract

A pulsation control device includes a fluid supply module, a switching unit, a first path, a second path, and a fluid receiving device. The fluid supply module outputs fluid according to a pulsation signal and a flow rate. The first path is connected between the fluid supply module and the switching unit. The second path is connected between the switching unit and the fluid receiving device. The fluid receiving device can receive the fluid outputted from the fluid supply module. The switching unit controls a state of open or closed between the first path and the second path. When the fluid supply module supplies gas to the first path for pressurizing the gas volume of the first path, the pressurized gas volume is instantly released to the fluid receiving device through the second path, so that the volume in the fluid receiving device changes.

IPC Classes  ?

• G05D 16/00 - Control of fluid pressure
• B60R 21/26 - Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow

Abstract

A pulsed pressure control system includes a supply unit, a switching unit, a first path, a second path, a fluid receiving device, and a return path. The first path and the return path are different paths connected between the supply unit and the switching unit. The second path is connected between the switching unit and the fluid receiving device. During pressurization, the switching unit cuts off communication between the first and second paths to increase the volume of, and eventually pressurize, the fluid on the first path, and then the switching unit is switched on to allow communication between the first and second paths to instantaneously release the pressurized fluid to the fluid receiving device through the second path. During pressure release, the switching unit allows communication between the second and return paths to allow the fluid to flow back to the supply unit through the return path.

IPC Classes  ?

• A61H 9/00 - Pneumatic or hydraulic massage

Abstract

An actuating device includes an actuator and a stationary portion. The actuator has at least one driving portion. The stationary portion is provided at an arbitrary position along the actuator such that the driving portion forms a first driving portion and a second driving portion. The first driving portion and the second driving portion can be provided with the same actuating ability or with different actuating abilities respectively by adjusting the position of the stationary portion.

IPC Classes  ?

• F16K 31/00 - Operating meansReleasing devices
• F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
• F16H 21/04 - Guiding mechanisms, e.g. for straight-line guidance
• H10N 30/20 - Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators

Abstract

A vessel pressure regulating system with a multidirectional control valve device includes: a pressure source; the multidirectional control valve device, which includes a housing, an actuation unit, and a working element, the housing having an interior space, an input port, and an output port, the input port being in communication with the pressure source, the actuation unit having a stationary portion and a driving portion, and the working element being controlled by the driving portion in order to open or close the output port; a vessel in communication with the output port; and a control unit for controlling the operation of the pressure source and of the driving portion. The vessel pressure regulating system enables a safety airbag of a vehicle or a similar device in a chair, bed, or the like to function effectively.

IPC Classes  ?

• F16K 31/00 - Operating meansReleasing devices
• F16K 11/18 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle with separate operating movements for separate closure members
• A43B 7/08 - Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
• A43B 13/20 - Pneumatic soles
• A43B 13/40 - Built-in insoles joined to uppers during the manufacturing process, e.g. structural insolesInsoles glued to shoes during the manufacturing process with cushions
• A47C 27/08 - Fluid mattresses
• A47C 27/10 - Fluid mattresses with two or more independently-fillable chambers
• B60N 2/66 - Lumbar supports

Abstract

A fluid driving device includes a vibration unit, a signal transmission layer, a piezoelectric element, and a plane unit. The signal transmission layer includes a first conductive zone and a second conductive zone. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The signal transmission layer, the piezoelectric element, and the plane unit are located at one side of the vibration unit and sequentially stacked with each other.

IPC Classes  ?

• F04B 43/04 - Pumps having electric drive
• H01L 41/09 - Piezo-electric or electrostrictive elements with electrical input and mechanical output
• F04B 43/073 - Pumps having fluid drive the actuating fluid being controlled by at least one valve

Abstract

A fluid actuator includes an actuating portion, a piezoelectric unit, a conduction unit, and a levelness regulating portion. The actuating portion includes a first actuating area, a second actuating area, and at least one connecting section between the two actuating areas. The piezoelectric unit includes a first signal area and a second signal area. The two signal areas are provided in the same plane and are isolated from each other by an isolating portion. The piezoelectric unit corresponds in position to the first actuating area of the actuating portion. The conduction unit includes a first electrode and a second electrode. The first signal area of the piezoelectric unit is electrically connected to the first electrode, and the second signal area of the piezoelectric unit to the second electrode. The levelness regulating portion, the piezoelectric unit, and the conduction unit are located on the same side of the actuating portion.

IPC Classes  ?

• H01L 41/047 - Electrodes
• H10N 30/20 - Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
• F04B 43/04 - Pumps having electric drive
• H10N 30/88 - MountsSupportsEnclosuresCasings
• H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals

Abstract

A pump and valve combination for bladder adjustment is revealed and including a fluid supply member, a valve member and a bypass line. The fluid supply member includes a head end and a tail end. A bottom cover is disposed on the tail end and the fluid supply member provides fluid to the bottom cover through the tail end. The valve member is arranged at the head end and communicating with bladders. The valve member includes a valve cap fixed on the head end, a solenoid operated directional control valve, and an air supply tube. Two ends of the bypass line are connected to the bottom cover and an air input end of the air supply tube, respectively. An input portion and an output portion of the solenoid operated directional control valve are connected to an air output end of the air supply tube and the bladder respectively.

IPC Classes  ?

• A47C 27/08 - Fluid mattresses
• F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
• F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
• A47C 7/46 - Supports for the head or the back for the back with special, e.g. adjustable, profile"Ackerblom" profile chairs
• B60N 2/66 - Lumbar supports
• F04B 45/047 - Pumps having electric drive
• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

Abstract

A depressurizing device includes a valve base, a first valve, a flexible member, and a top cover. The valve base has a pressure chamber and an outgassing chamber. Top and bottom surfaces of the pressure chamber have an opening and a first valve port respectively. The first valve is located in the pressure chamber and covers the first valve port. The flexible member is disposed on the valve base and has a depressurizing valve and a first outgassing port, the depressurizing valve covers the opening, and the first outgassing port is communicated with the outgassing chamber. A first outgassing channel is at least formed on the flexible member and communicates the pressure chamber to the outside of the valve base. The top cover is disposed on the flexible member and has a first depressurizing port and a second outgassing port.

IPC Classes  ?

• F04B 49/24 - Bypassing
• F04B 53/10 - ValvesArrangement of valves
• F04B 39/10 - Adaptation or arrangement of distribution members
• F04B 39/08 - Actuation of distribution members

Abstract

A pneumatic pump having an overpressure protection valve having a gasket and spring that includes a diaphragm carrier, a diaphragm member, a valve base, a valve, a cap, a driving device and an overpressure protection valve is revealed. A pump chamber is formed between the diaphragm member and the valve base. The overpressure protection valve having a spring and a gasket. A discharge channel, an air-flow channel and a backflow channel are formed among the pump chamber, the valve base, the valve and the cap. The discharge channel, the overpressure protection valve and the spring chamber are separated. The gasket is disposed between the air-flow channel and the backflow channel for closing the air-flow channel normally. The driving device drives the diaphragm member for discharging air from the pump chamber through the discharge channel.

IPC Classes  ?

• F04B 53/10 - ValvesArrangement of valves
• F04B 45/047 - Pumps having electric drive
• F04B 53/22 - Arrangements for enabling ready assembly or disassembly
• F04B 45/04 - Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
• F04B 49/035 - Bypassing
• F04B 49/24 - Bypassing
• B60N 2/90 - Details or parts not otherwise provided for

Abstract

A fluid driving system includes a vibration unit, a piezoelectric element, a signal transmission layer, a plane unit, and a protrusion. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit. The protrusion is located between the vibration unit and the plane unit, and the protrusion corresponds to and protrudes toward the at least one hole.

IPC Classes  ?

• F04B 43/04 - Pumps having electric drive
• H01L 41/09 - Piezo-electric or electrostrictive elements with electrical input and mechanical output

Abstract

A fluid driving device includes a vibration unit, a signal transmission layer, a piezoelectric element, and a plane unit. The signal transmission layer includes a first conductive zone and a second conductive zone. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The signal transmission layer, the piezoelectric element, and the plane unit are located at one side of the vibration unit and sequentially stacked with each other.

IPC Classes  ?

• F04B 43/04 - Pumps having electric drive
• F04B 43/073 - Pumps having fluid drive the actuating fluid being controlled by at least one valve
• H01L 41/09 - Piezo-electric or electrostrictive elements with electrical input and mechanical output

Abstract

A piezoelectric driving device includes a vibration unit, a piezoelectric element, a signal transmission layer, and a plane unit. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit and are sequentially stacked together.

IPC Classes  ?

• H01L 41/04 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof - Details of piezo-electric or electrostrictive elements
• F04B 43/04 - Pumps having electric drive
• H01L 41/047 - Electrodes
• H01L 41/083 - Piezo-electric or electrostrictive elements having a stacked or multilayer structure

Abstract

A diaphragm pump includes a valve seat, a head cover covered on the valve seat, and a pair of valve plates. A surface of the valves seat is formed concavely with a first receiving trough with a first flow passage, and a second receiving trough with a second flow passage. One of the valve plates is disposed in the first receiving trough, and the other one is disposed in the second receiving trough. The first and second receiving troughs respectively have a geometric shape corresponding with that of the valve plate. The valve plate has a sealing part, and at least one extending arm extended outwardly from the sealing part. The sealing part has a geometric shape being bilaterally symmetrical. The extending arm has an arced end. A gap is existed between an edge of the valves plate and the first receiving trough or the second receiving trough.

IPC Classes  ?

• F04B 43/04 - Pumps having electric drive
• F04B 43/02 - Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
• F04B 53/10 - ValvesArrangement of valves
• F04B 45/04 - Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
• F16K 15/02 - Check valves with guided rigid valve members

Abstract

A one way valve assembly including a base, a cover, and a valve member is provided. The base includes a first and a second lower hollows and an inlet communicated with the first lower hollow. The cover includes a first and a second upper hollows, a connecting path, an outlet, and an exhaust nozzle. Positions of the first and the second upper hollows correspond to positions of the first and the second lower hollows. The first upper hollow is communicated with the second upper hollow via the connecting path. The outlet is communicated with the second upper hollow. The valve member is disposed between the base and the cover. The valve member has a first zone, a second zone, and a third zone corresponding to the first and the second upper hollows and the connecting path, and includes a valve nozzle between the second lower hollow and the second upper hollow. The first zone can deform towards the first lower hollow or the first upper hollow. The second zone can deform towards the second lower hollow or the second upper hollow. The third zone can deform towards the connecting path.

IPC Classes  ?

• F16K 15/14 - Check valves with flexible valve members
• F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
• F16K 27/02 - Construction of housingsUse of materials therefor of lift valves

Abstract

A depressurizing device includes a valve base, a first valve, a flexible member, and a top cover. The valve base has a pressure chamber and an outgassing chamber. Top and bottom surfaces of the pressure chamber have an opening and a first valve port respectively. The first valve is located in the pressure chamber and covers the first valve port. The flexible member is disposed on the valve base and has a depressurizing valve and a first outgassing port, the depressurizing valve covers the opening, and the first outgassing port is communicated with the outgassing chamber. A first outgassing channel is at least formed on the flexible member and communicates the pressure chamber to the outside of the valve base. The top cover is disposed on the flexible member and has a first depressurizing port and a second outgassing port.

IPC Classes  ?

• F04B 39/10 - Adaptation or arrangement of distribution members
• F04B 49/24 - Bypassing
• F04B 53/10 - ValvesArrangement of valves
• F04B 39/08 - Actuation of distribution members

Abstract

A piezoelectric pump includes a piezoelectric element, a vibrating piece, a valve and a flow guiding member. The vibrating piece has a central zone attached to the piezoelectric element, a peripheral zone, a first recess, a stopper and a position limiting wall both protruding from the first recess, and a through groove disposed between the central zone and the peripheral zone and connected through the first recess. The valve is attached to the peripheral zone and has a non-straight through slit. The flow guiding member is attached to the valve and has a second recess and a channel both recessed in the flow guiding member, and a through hole. The channel is connected through the second recess and the through hole. A projection of the second recess projected on the plane which the valve exists covers the non-straight through slit. An operating method of a piezoelectric pump is further provided.

IPC Classes  ?

• F04B 53/10 - ValvesArrangement of valves
• F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• F04B 43/04 - Pumps having electric drive

Abstract

A miniature pump includes a cylinder, a piston module, a driving module and a wall body. The cylinder has a first end and a second end opposite to each other along a direction. The piston module is accommodated in the cylinder. The piston module has at least one pumping chamber structure protruded towards the second end, and the pumping chamber structure is able to extend or retract along the direction. The driving module is located at the second end and connected to the pumping chamber structure, configured to drive the pumping chamber structure to extend or retract along the direction. The wall body at least partially surrounds a position of the pumping chamber structure near the first end, and is located between the cylinder and the pumping chamber structure.

IPC Classes  ?

• F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
• F04B 43/02 - Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms

Abstract

A solenoid valve includes a plunger head, an actuating device, a seal sheet and an air tap assembly. The actuating device has a connection member coupled with the plunger head. The seal sheet is disposed on the actuating device. The air tap assembly is secured to the actuating device and has a cavity. The air tap assembly includes a main body, a first and a second tubes. The first tube protrudes from the main body and defines a first through hole. The main body defines a second through hole communicated with the first through hole and the cavity. The second tube defines a third through hole. The main body defines a fourth through hole extended from the third through hole and a fifth through hole extended from the fourth through hole to the cavity. The plunger head is used to seal the second and fifth through holes.

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• F16K 41/10 - Spindle sealings with diaphragm, e.g. shaped as bellows or tube
• F16K 1/42 - Valve seats
• F16K 25/00 - Details relating to contact between valve members and seats

Abstract

A solenoid valve includes a plunger, an actuating device, and an air tap assembly. The plunger is connected to the actuating device. The air tap assembly is secured to the actuating device and has a cavity. The air tap assembly includes a main body, and first and second tubes. The first tube protrudes from the main body and defines a first through hole. The main body defines a second through hole communicated with the first through hole and the cavity. The second tube defines a third through hole. The main body defines a fourth through hole extended from the third through hole and a fifth through hole extended from the fourth through hole to the cavity. The fifth and second through holes are parallel. The plunger head is used to seal the second and fifth through holes.

IPC Classes  ?

• F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
• F16K 1/42 - Valve seats
• F16K 25/00 - Details relating to contact between valve members and seats
• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet