One or more components of a high pressure pump include a hydraulic surge dampener. The hydraulic surge dampener mitigates or prevents damage that results from a sudden pressure surge that results from impact of components, for example a hydraulic piston and a hydraulic head, of the high pressure pump. The hydraulic surge dampener may include one or more grooves, one or more through holes, or a combination thereof. The hydraulic surge dampener may be carried by or be part of one or more components of the high pressure pump, such as the hydraulic piston, the hydraulic head, or both.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
Fluid jet cutting machines and parts therefor; waterjet
cutting machines and parts therefor; nozzles for waterjet
cutting machines; abrasive hoppers for waterjet cutting
machines; fluid pumps for use in waterjet and abrasive jet
machining and surface preparation systems.
Fluid jet cutting machines and parts therefor; waterjet cutting machines and parts therefor; nozzles for waterjet cutting machines; abrasive hoppers for waterjet cutting machines; fluid pumps for use in waterjet and abrasive jet machining and surface preparation systems
A seal assembly seals a gap between a pump plunger and a high pressure cylinder of a pump. The assembly includes a seal ring having a bore through which the plunger can extend, a front axial end, and a rear axial end. An O-ring is positioned on the seal ring. A packing ring has a bore through which the plunger can extend, a front axial end abutting the rear axial end of the seal ring, and a rear axial end. A non-metal packing follower has a bore through which the plunger can extend, a front axial end abutting the rear axial end of the packing ring, and a rear axial end. The non-metal packing follower can be ceramic (e.g., carbide) or similar hard, wear-resistant materials.
Fluid jet cutting machines and parts therefore; waterjet
cutting machines and parts therefore; nozzles for waterjet
cutting machines; abrasive hoppers for waterjet cutting
machines; pumping units for high pressure water
applications; fluid pumps for use in waterjet and abrasive
jet machining and surface preparation systems.
A sealing system for a high pressure pump operable above 15,000 psi includes a first engagement face formed as part of the vessel and defining an opening into the vessel bore, the first engagement face having a concave cross-section. A seal member is at least partially received within the bore and defines a second engagement face, the second engagement face having a convex cross-section. A retaining member is coupled to the seal member and is operable to move the seal member from an initial contact position with the vessel to a sealing contact position, wherein the first engagement face and the second engagement face define a first contact angle with respect to the axis in the initial contact position and a second contact angle that is greater than the first contact angle in the sealing position.
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
F04B 37/12 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for special use to obtain high pressure
F16J 15/04 - Sealings between relatively-stationary surfaces without packing between the surfaces, e.g. with ground surfaces, with cutting edge
F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type
F04B 53/14 - Pistons, piston-rods or piston-rod connections
Fluid jet cutting machines and parts therefor; waterjet cutting machines and parts therefor; nozzles for waterjet cutting machines; abrasive hoppers for waterjet cutting machines; fluid pumps for use in waterjet and abrasive jet machining and surface preparation systems
Control systems and methods for starting an induction motor. The control system includes a plurality of wye switches, a plurality of delta switches, an AC power supply, and a soft-starter. The plurality of wye switches are connected between three phase stator windings of the induction motor such that closure of the plurality of wye switches causes the three phase stator windings to be connected in a wye connection. The plurality of delta switches are connected between the three phase stator windings such that closure of the plurality of delta switches causes the three phase stator windings to be connected in a delta configuration. The soft-starter is connected between three phase supply lines of the AC power supply and the three phase stator windings to control a supply of energy to the induction motor from the AC power supply.
H02P 1/32 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star/delta switching
An orifice for a high-pressure waterjet cutter includes a first surface defining an inlet plane, a second surface defining an outlet plane, and an inner bore aligned along a flow axis and extending from the first surface to the second surface. The orifice also includes a first layer of polycrystalline diamond extending from the first surface to a plane between the inlet plane and the outlet plane, and a second, separate layer of polycrystalline diamond extending from the plane to the second surface. The first layer and the second layer are coupled to one another to define a single component. The second layer has material properties different than the first layer.
An orifice for a high-pressure waterjet cutter includes a first surface defining an inlet plane, a second surface defining an outlet plane, and an inner bore aligned along a flow axis and extending from the first surface to the second surface. The orifice also includes a first layer of polycrystalline diamond extending from the first surface to a plane between the inlet plane and the outlet plane, and a second, separate layer of polycrystalline diamond extending from the plane to the second surface. The first layer and the second layer are coupled to one another to define a single component. The second layer has material properties different than the first layer.
B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
B05B 1/00 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
An orifice for a high-pressure waterjet cutter includes a first surface defining an inlet plane, a second surface defining an outlet plane, and an inner bore aligned along a flow axis and extending from the first surface to the second surface. The orifice also includes a first layer of polycrystalline diamond extending from the first surface to a plane between the inlet plane and the outlet plane, and a second, separate layer of polycrystalline diamond extending from the plane to the second surface. The first layer and the second layer are coupled to one another to define a single component. The second layer has material properties different than the first layer.
A fluid pressurizing system includes a group of three intensifiers each including a reciprocating piston operable through a cycle at a frequency to discharge a flow of ultra high pressure fluid. The group of intensifiers is operable in a normal mode and a service mode. In the normal mode, during each cycle each intensifier performs a discharge phase, a suction phase, an idle phase, and a precharge phase, and no two intensifiers performs the same phase at the same time. In the service mode, during each cycle one of the intensifiers operates in the idle phase and the remaining intensifiers operates in one of the suction phase, the discharge phase, and the precharge phase and neither of the remaining intensifiers performs the same phase at the same time. A controller transitions the group of intensifiers between the normal mode and the service mode and controls the phase of each intensifier.
F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
F04B 37/12 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for special use to obtain high pressure
A seal assembly seals a gap between a pump plunger and a high pressure cylinder of a pump. The assembly includes a seal ring having a bore through which the plunger can extend, a front axial end, and a rear axial end. An O-ring is positioned on the seal ring. A packing ring has a bore through which the plunger can extend, a front axial end abutting the rear axial end of the seal ring, and a rear axial end. A non-metal packing follower has a bore through which the plunger can extend, a front axial end abutting the rear axial end of the packing ring, and a rear axial end. The non-metal packing follower can be ceramic (e.g., carbide) or similar hard, wear-resistant materials.
A cutting head for a high pressure water jet cutting assembly includes a body having an inner chamber and an aperture that extends into the inner chamber. A focusing tube is removably insertable within the inner chamber along a longitudinal axis. An engagement member is at least partially disposed within the aperture and movable between a first position and a second position in which a portion of the engagement member is disposed within the inner chamber. A retaining member is engageable with the body and movable with respect to the body to bias the engagement member into engagement with the focusing tube to retain the focusing tube within the inner chamber and to align the focusing tube substantially along the longitudinal axis.
A cutting head for a high pressure water jet cutting assembly includes a body having an inner chamber and an aperture that extends into the inner chamber. A focusing tube is removably insertable within the inner chamber along a longitudinal axis. An engagement member is at least partially disposed within the aperture and movable between a first position and a second position in which a portion of the engagement member is disposed within the inner chamber. A retaining member is engageable with the body and movable with respect to the body to bias the engagement member into engagement with the focusing tube to retain the focusing tube within the inner chamber and to align the focusing tube substantially along the longitudinal axis.
A sealing system for a high pressure pump, in which the pump includes a vessel defining a vessel bore and having an end portion, the vessel bore having a first engagement face and defining a central longitudinal axis, and in which the pump further includes a plunger cooperative with the vessel to increase the pressure of a fluid within the bore, includes a seal member at least partially received within the bore and defining a second engagement face. The sealing system further includes a retaining member in operative contact with the seal member to mate the first engagement face with the second engagement face to inhibit fluid leakage from the bore. The first engagement face includes a first contacting surface having a non-linear cross-section. The second engagement face includes a second contacting surface having a non-linear cross-section in contact with the first contacting surface.
A sealing system for a high pressure pump, in which the pump includes a vessel defining a vessel bore and having an end portion, the vessel bore having a first engagement face and defining a central longitudinal axis, and in which the pump further includes a plunger cooperative with the vessel to increase the pressure of a fluid within the bore, includes a seal member at least partially received within the bore and defining a second engagement face. The sealing system further includes a retaining member in operative contact with the seal member to mate the first engagement face with the second engagement face to inhibit fluid leakage from the bore. The first engagement face includes a first contacting surface having a non-linear cross-section. The second engagement face includes a second contacting surface having a non-linear cross-section in contact with the first contacting surface.
A sealing system for a high pressure pump, in which the pump includes a vessel defining a vessel bore and having an end portion, the vessel bore having a first engagement face and defining a central longitudinal axis, and in which the pump further includes a plunger cooperative with the vessel to increase the pressure of a fluid within the bore, includes a seal member at least partially received within the bore and defining a second engagement face. The sealing system further includes a retaining member in operative contact with the seal member to mate the first engagement face with the second engagement face to inhibit fluid leakage from the bore. The first engagement face includes a first contacting surface having a non-linear cross-section. The second engagement face includes a second contacting surface having a non-linear cross-section in contact with the first contacting surface.
F16L 35/00 - Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type
F04B 37/12 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for special use to obtain high pressure
F04B 53/14 - Pistons, piston-rods or piston-rod connections
F16J 15/04 - Sealings between relatively-stationary surfaces without packing between the surfaces, e.g. with ground surfaces, with cutting edge
A high-pressure fluid pump is operable to pressurize a fluid and includes a hollow stud including a first end, a second end, and a cylindrical space extending between the first end and the second end and a housing fixedly coupled to the first end of the hollow stud. A high pressure cylinder is disposed within the cylindrical space of the hollow stud. The high pressure cylinder includes a bore that extends from a first end to a second end of the high pressure cylinder. A seal head is engaged with the first end of the high pressure cylinder to define a seal therebetween and an end cap is coupled to the second end of the hollow stud and the seal head. The end cap is operable to apply a compressive force to the seal head to compress the seal head against the cylinder and to apply a tensile load to the hollow stud. A plunger is movable within the bore to pressurize the fluid in a space defined by the piston, the seal head, and the high pressure cylinder.
A high-pressure fluid pump is operable to pressurize a fluid and includes a hollow stud including a first end, a second end, and a cylindrical space extending between the first end and the second end and a housing fixedly coupled to the first end of the hollow stud. A high pressure cylinder is disposed within the cylindrical space of the hollow stud. The high pressure cylinder includes a bore that extends from a first end to a second end of the high pressure cylinder. A seal head is engaged with the first end of the high pressure cylinder to define a seal therebetween and an end cap is coupled to the second end of the hollow stud and the seal head. The end cap is operable to apply a compressive force to the seal head to compress the seal head against the cylinder and to apply a tensile load to the hollow stud. A plunger is movable within the bore to pressurize the fluid in a space defined by the piston, the seal head, and the high pressure cylinder.
F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F04B 9/113 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
F04B 3/00 - Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
F04B 9/105 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
A water cutting assembly with an increased stream cohesiveness to improve the efficiency of water cutting operations. The water cutting assembly includes a nozzle, a nozzle nut, and an orifice assembly that defines a collimating chamber to reduce turbulence of the water before it exits an orifice passage in the orifice assembly.
A cutting head for a water jet cutting machine includes a base with a bore and an orifice member having an inlet, an outlet, and a passage extending between the inlet and outlet which increases velocity of fluid flowing through the passage to form a fluid jet. A wear insert has first and second ends, a passage extending between the two ends, the body second end being connected with the base and the body first end supporting the orifice member. A fluid focusing device includes a tubular body with a central passage having inlet and discharge ports, the tubular body being disposable within the base bore such that the body inlet port is fluidly coupleable with the orifice outlet. The tubular body and/or the base are/is configured such that the tubular body is separately positionable at one of a plurality of discrete, predetermined angular positions about the base bore axis.
A rotary pump includes a rotatable shaft, a rotary drive member connected with the shaft and having an angled drive surface centered about a shaft drive axis. One or more pumping units each include a piston linearly displaceable along a pump axis, spaced from and extending parallel with the drive axis, a and having a working end for pressurizing a fluid and an opposing driven end. A coupler assembly is configured to operably couple the piston driven end with the angled drive surface such that rotation of the rotary member linearly displaces the piston along the pump axis and configured to substantially reduce sliding contact between the piston and any portion of the rotating pump component. Each piston is disposed within a bore through a drive base and a removably connected pressurizing base and is formed of drive and pressurizing portions, the pressurizing portion being separately removable from the pump.
F04B 1/20 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
F04B 53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups or
A pump that includes a cylinder housing having a through bore. A cylinder liner is disposed substantially within the through bore and includes a substantially uniform aperture having a first diameter. A plunger includes an engagement portion having a second diameter smaller than the first diameter. The first diameter and the second diameter are sized to define a first diametrical clearance that is less than about 0.1 percent of the second diameter.
F04B 1/12 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
F04B 53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups or
F04B 53/14 - Pistons, piston-rods or piston-rod connections
