Pump Housing of a Motor Vehicle Hydraulic Unit with at Least One Main Cylinder Connection Opening

In a pump housing ( 56 ) of a motor vehicle hydraulic unit which has at least one side surface ( 18 ), at least one main cylinder connection opening ( 44; 46 ), at least one pump element opening ( 28, 30 ) and a connecting line ( 58; 60 ) which connects the at least one main cylinder connection opening ( 44; 46 ) to the at least one pump element opening ( 28; 30 ) and is designed as a blind bore into the pump housing ( 56 ), the blind bore of the connecting line ( 58; 60 ) extends, according to the invention, from the at least one side surface ( 18 ) initially through the at least one pump element opening ( 28; 30 ) and subsequently into the at least one main cylinder connection opening ( 44; 46 ).

Method of maintaining hydraulic pump in a renewable energy turbine generator

A hydraulic pump comprises ( 1 ) an outward ring ( 24 ), including demountable blocks ( 30 ) comprising piston cylinders ( 32 ), and an inward ring ( 21 ), comprising a ring cam ( 23 ), coupled through a drive shaft ( 8 ) to the blades of a turbine ( 4 ). To enable maintenance, the outward ring is decoupled from a torque limiting device ( 16, 17 ) and rotated relative to the inward ring. Demountable blocks are then removed from the outward ring using a crane ( 61 ) including a line ( 62 ) extending from above the centre of mass of the demountable block and including a resilient portion ( 66 ) so that although the crane supplies the majority of the force required to remove the demountable block, an operator provides some force, enabling the process to be controlled. The method is suitable for maintaining large hydraulic pumps in wind turbine nacelles ( 2 ).

Radial Piston Pump Assemblies and Use Thereof in Hydraulic Circuits

A system and method for machinery performing work with hydraulic actuators. Radial hydraulic pumps are aligned end-to-end along a common driveshaft axis to form a multi-pump assembly having a plurality of piston/cylinder units extending in a radial direction. Two or more piston/cylinder units are associated with one another to form multiple piston/cylinder groups. A plurality of control valves combines individual output flows from the two or more associated piston/cylinder units into respective common output flows for each respective piston/cylinder group. A plurality of flow control devices varies the common output flow from each respective piston/cylinder group by throttling inlet flow to the two or more associated piston/cylinder units in each respective piston/cylinder group. Each respective common output flow is directed from each respective piston/cylinder group to a hydraulic actuator on the heavy machinery to control its direction of movement. 1. A method for machinery having hydraulic actuators performing work with fluid supplied from radial hydraulic pumps , the method comprising:aligning a plurality of radial hydraulic pumps end-to-end along a common driveshaft axis to form a multi-pump assembly having a plurality of piston/cylinder units extending in a radial direction about the driveshaft axis;associating two or more piston/cylinder units in the plurality of piston/cylinder units with one another to form multiple piston/cylinder groups;combining individual output flows from the two or more associated piston/cylinder units into a common output flow for each respective piston/cylinder group;varying the common output flow from each respective piston/cylinder group by throttling inlet flow to the two or more associated piston/cylinder units in each piston/cylinder group; anddirecting the common output flow from each respective piston/cylinder group to a hydraulic actuator on the heavy machinery so as to control a direction of movement of the hydraulic ...

Composite pump packing sealing elements

A sealing assembly for a pump includes a header ring having a tapered radially outer surface and a sloped radially inner surface. The assembly also includes a first seal configured to couple to the header ring, the first seal having a groove that receives a bead extending from the header ring. The assembly further includes a second seal axially aligned with the first seal.

Plunger bore sleeve for a reciprocating pump

A fluid cylinder for a fluid end section of a reciprocating pump includes a body having a pressure chamber and a plunger bore that fluidly communicates with the pressure chamber. The plunger bore includes a packing segment configured to hold packing. The fluid cylinder includes a sleeve received within the packing segment of the plunger bore. The sleeve is configured to hold a plunger within an internal passage of the sleeve such that the plunger is configured to reciprocate within the plunger bore during operation of the reciprocating pump. The fluid cylinder includes a retention mechanism secured within the plunger bore such that the retention mechanism is configured to retain the sleeve within the packing segment of the plunger bore.

Support for reciprocating pump

A skid for supporting a reciprocating pump assembly, the reciprocating pump assembly including a power end frame assembly having a pair of end plates and a plurality of middle plates disposed between the end plates. The end plates each have at least a pair of feet and the middle plates each having at least one foot. The skid includes a base and a plurality of pads extending from the base. At least a portion of the plurality of pads correspond to the end plate feet and at least another portion of the plurality of pads correspond to the at least one foot of each middle plate.

CALORIC HEAT PUMP SYSTEM

A caloric heat pump system includes a pump is operable to circulate a working fluid through a stage. The pump includes a motor. A cam is coupled to the motor such that the cam is rotatable by the motor. The cam has a non-circular outer profile surface. Each piston of a pair of pistons has a cam follower positioned on the non-circular outer profile surface of the cam. 1. A caloric heat pump system , comprising:a regenerator housing defining a chamber;a stage comprising a caloric material disposed within the chamber; a motor;', 'a cam coupled to the motor such that the cam is rotatable by the motor, the cam having a non-circular outer profile surface; and', 'a pair of pistons positioned opposite each other about the cam, each piston of the pair of pistons having a cam follower positioned on the non-circular outer profile surface of the cam., 'a pump operable to circulate a working fluid through the stage, the pump comprising'}2. The caloric heat pump system of claim 1 , wherein the pair of pistons are positioned orthogonal to each other.3. The caloric heat pump system of claim 1 , wherein the cam followers of the pair of pistons are positioned on the non-circular outer profile surface of the cam such that one of the pair of pistons is at a top dead center position when the other of the pair of pistons is at a bottom dead center position and the one of the pair of pistons is at the bottom dead center position when the other of the pair of pistons is at the top dead center position.4. The caloric heat pump system of claim 1 , wherein the cam followers of the pair of pistons are positioned on the non-circular outer profile surface of the cam such that the pistons of the pair of pistons have a phase difference of one hundred and eighty degrees during operation of the pump.5. The caloric heat pump system of claim 1 , further comprising at least one additional pair of pistons positioned opposite each other about the cam and each having a cam follower positioned on the non- ...

CALORIC HEAT PUMP SYSTEM

A caloric heat pump system includes a plurality of stages, a plurality of conduits and a plurality of flow restrictors. Each stage includes a caloric material disposed within a respective chamber of a plurality of chambers. Each conduit is coupled to a regenerator housing at a respective one of the plurality of chambers. Each flow restrictor is coupled to the regenerator housing or a respective one of the plurality of conduits. A related method for regulating fluid flow through a plurality of stages of a caloric heat pump is also provided. 1. A caloric heat pump system , comprising:a regenerator housing comprising a plurality of chambers;a plurality of stages, each stage comprising a caloric material disposed within a respective chamber of the plurality of chambers;a plurality of conduits, each conduit coupled to the regenerator housing at a respective one of the plurality of chambers;a pump coupled to the conduits of the plurality of conduits, the pump operable to circulate a working fluid through the conduits of the plurality of conduits and the stages of the plurality of stages; anda plurality of flow restrictors, each flow restrictor coupled to the regenerator housing or a respective one of the plurality of conduits, the flow restrictors of the plurality of flow restrictors configured such that a flow rate of the working fluid through each stage of the plurality of stages is uniform.2. The caloric heat pump system of claim 1 , wherein the flow restrictors of the plurality of flow restrictors comprise at least one of an orifice claim 1 , a needle valve or a pinch valve.3. The caloric heat pump system of claim 1 , wherein the flow restrictors of the plurality of flow restrictors are orifices and are positioned on the regenerator housing.4. The caloric heat pump system of claim 1 , wherein the flow restrictors of the plurality of flow restrictors are needle valves or pinch valves and each flow restrictor is coupled to the respective one of the plurality of conduits ...

High-Pressure Fuel Pump

In some embodiments, a fuel pump includes: a housing; and a flange for fastening the housing to an engine. The flange includes two mutually separated parts for encompassing one circumferential part-region of the housing with a housing receptacle clearance. Each of the two flange parts includes two flange connection regions disposed along a flange-bisecting axis opposite the housing receptacle clearance. A first flange connection region part includes a planar connection element disposed in a first flange plane and a second flange connection region of the flange part includes a connection element disposed in a second flange plane and projecting beyond the first flange plane. The planar connection element of the flange part engages in a form-fitting manner with the projecting connection element of another flange part. The projecting connection element of the flange part engages in a form-fitting manner with the planar connection element of the other flange part. 1. A high-pressure fuel pump comprising:a housing for a high-pressure generation element; anda flange for fastening the housing to a cylinder head and/or to a motor block of an internal combustion engine;wherein the flange includes two mutually separated flange parts configured for encompassing in each case one circumferential part-region of the housing by way of a housing receptacle clearance;each of the two-flange parts includes two flange connection regions disposed along a flange-bisecting axis opposite the housing receptacle clearance;a first flange connection region of a flange part includes a planar connection element disposed in a first flange plane, and a second flange connection region of the flange part includes a connection element disposed in a second flange plane and projecting beyond the first flange plane;the planar connection element of the flange part engages in a form-fitting manner with the projecting connection element of another flange part; andthe projecting connection element of the ...

Bellows System For Fluid End

A fluid end with an internal bellows can be used in high pressure environments. The bellows is disposed within a plunger bore, and has an interior isolated from a working chamber of the fluid end. An end of a plunger is received in the interior of the bellows. The bellows contains an incompressible fluid at a constant volume. As the plunger extends into the interior of the bellows, the fluid it contains is displaced. Such fluid displacement causes the bellows to extend. As the plunger is retracted, the fluid replaces the volume formerly displaced by the plunger, and causes the bellows to accordion to a retracted position.

Multi-part roller tappet

A roller tappet, in particular for a high-pressure fuel pump, is provided that is guided in the direction of the longitudinal axis thereof in a housing receptacle and is driven translatably in the longitudinal direction by cams of a camshaft. The roller tappet has a tappet body. This tappet body has a tappet skirt, a pump piston contact point (9), and a rotatably mounted roller (4), by which the roller tappet is supported on the camshaft. The tappet body has a guide cylinder (1), which is mounted in the housing receptacle and on which the roller (4) is supported, and a cup-shaped sleeve (7) having the pump piston contact point (9), which cup-shaped sleeve is supported in the guide cylinder (1) by a radial ring (8). A cylindrical constriction (5) is formed in the guide cylinder (1) in the region of the radial ring support.

Accurate flow-in measurement by triplex pump and continuous verification

A method includes determining a rotational position of a crankshaft in a multiplex pump from one or more sensors disposed on the crankshaft, determining a position of each of a plurality of pistons along a corresponding pump bore in relation to a total stroke length of each piston and a connecting rod length, calculating an individual theoretical displaced volume of fluid for each of the pump bores in the multiplex pump based on the rotational position of the crankshaft, and summing the individual theoretical displaced volumes to determine a total theoretical pumped volume by the multiplex pump. A calibration method includes determination of the multiplex pump efficiency versus speed and discharge pressure, and the effect of pump leakage and valve closing delay on the pump efficiency. Verification of the pump performance and efficiency may be controlled during pumping to insure the validity of the last calibration data set.

Method and system for harnessing wind energy using a tethered airfoil

Methods, systems, and techniques for harnessing wind energy use a tethered airfoil and a digital hydraulic pump and motor, which may optionally be a combined pump/motor. During a traction phase, a wind powered airfoil is allowed to extend a tether and a portion of the wind energy harnessed through extension of the tether is stored prior to distributing the wind energy to an electrical service. During a retraction phase, the wind energy that is stored during the traction phase is used to retract the tether. The digital hydraulic pump and motor are mechanically coupled to the tether.

Inline piston pump

The present invention relates to an inline piston pump, comprising a driveshaft for driving the inline piston pump; at least two pistons which are operatively connected to the driveshaft and are disposed along a driveshaft axis and are in each case disposed so as to be movable in a reciprocating manner in a piston chamber; a suction connector for supplying a fluid to be pumped; wherein a suction valve is disposed in at least one, preferably in each, piston chamber in order to fluidically separate a suction duct for the inflow of fluid from the piston chamber during a compression movement of the associated piston. The pump is characterized in that a suction throttle valve which is conceived for varying a volumetric flow of a fluid to be pumped between the suction chamber and the suction duct is provided between the suction connector and the suction duct which in fluidic terms is connected directly to the at least one valve.

Three stage proportional control valve

An energize-to-close solenoid operated spool type inlet control valve for a high pressure fuel pump is variably positionable relative to a sleeve having three inlet feed ports and the inlet check valve member, to implement three stages of pump operation: limp-home, low-pressure flow from the low-pressure feed pump to the common rail, no flow to the common rail, and metered quantity of flow to the common rail. The spool valve includes an axially extending internal passage fluidly connected to a fluid volume at the front end of the spool valve, and a control port at the back end of the spool valve, selectively alignable to fluidly connect the ports. Two springs of different lengths either alone or together, bias the spool valve toward opening of the inlet check valve.

Multi-Piece Fluid End

A fluid end is formed from a first body attached to a separate second body. Each body includes an external surface. When the bodies are attached, their respective external surfaces are in flush engagement. A plurality of bores are formed in the second body that are alignable with a plurality of corresponding bores formed in the first body. The fluid end may be used with seals disposed within recesses within each bore to seal against corresponding sealing surfaces. Further, retaining closures may be bolted to the fluid end bodies, such that the closures have a threadless connection to the fluid end bodies. Various combinations of such components may be utilized. 1. A method , comprising: a first bore that extends through the first block and terminates at a first opening formed in the external surface; and', 'a second bore that extends through the first block, intersects the first bore, and terminates at a second opening formed in the external surface; and, 'machining a plurality of bore pairs into a first block of steel having an external surface, in which each bore pair comprisesmachining a plurality of third bores into the second, different block of steel having an external surface, in which each third bore extends through the second block and terminates at a third opening formed in the external surface of the second block, each third opening alignable with a corresponding second opening formed in the external surface of the first block to create a fluid end.2. A method , comprising:dividing a single block of material parallel to its length into multiple blocks;machining the multiple blocks into corresponding first fluid end bodies; andmating respective ones of the first fluid end bodies with corresponding second fluid end bodies to yield multiple fluid end assemblies.3. The method of in which the second fluid end bodies are machined from a different material than the first fluid end bodies.4. The method of in which the first fluid end bodies are formed from ...

HYDRAULIC PISTON PUMP WITH THROTTLE CONTROL

A pump system has a piston pump. The piston pump has a cylinder block with an inlet port, an outlet port, and a plurality of cylinders. Each cylinder in the plurality of cylinders is connected to the inlet port by an inlet passage and to the outlet port by an outlet passage. The piston pump has a plurality of pistons disposed in the plurality of cylinders. A drive shaft drives the pistons within the cylinders. A throttle member independently throttles flow in each inlet passage. The pump system has an electrohydraulic actuator governing movement of the throttle member. 1. A pump system comprising: a cylinder block having an inlet port, an outlet port, and a plurality of cylinders disposed therein, each cylinder in the plurality of cylinders being connected to the inlet port by a respective inlet passage in a plurality of inlet passages and to the outlet port by a respective outlet passage in a plurality of outlet passages;', 'a plurality of pistons, each piston in the plurality of pistons being disposed in a respective cylinder in the plurality of cylinders;', 'a drive shaft driving the plurality of pistons within the respective cylinders; and', 'a throttle member independently throttling flow in each inlet passage in the plurality of inlet passages; and, 'a piston pump comprising'}an electrohydraulic actuator governing movement of the throttle member.2. The pump system of claim 1 , further comprising a hydraulic actuator moving the throttle member to throttle flow in each inlet passage in the plurality of inlet passages.3. The pump system of claim 2 , wherein the electrohydraulic actuator modulates a pressure in the hydraulic actuator claim 2 , thereby governing movement of the throttle member.4. The pump system of claim 3 , wherein the hydraulic actuator comprises a control piston claim 3 , and wherein the pressure in the hydraulic actuator acts on the control piston to move the throttle member.5. The pump system of claim 2 , further comprising a load sense ...

FLUID WORKING MACHINE

The invention provides a fluid working machine comprising: a cylinder block () having an axial bore (); a crankshaft () which extends within the axial bore () and is rotatable about an axis of rotation (); and first and second valve cylinder devices () provided in the cylinder block () arranged about and extending outwards with respect to the axial bore (), the first and second valve cylinder devices () being axially offset from each other, the first and second valve cylinder devices () being offset from each other about the axis of rotation (), and the first valve cylinder device having an axial extent which overlaps the axial extent of the second valve cylinder device, wherein the first and second valve cylinder devices () comprise first valves () having respective first working fluid ports (), the said respective first working fluid ports () of the first valves () of the first and second valve cylinder devices () being in fluid communication with each other via a common conduit () extending within the cylinder block (). 1. A fluid working machine comprising: a cylinder block having an axial bore; a crankshaft which extends within the axial bore and is rotatable about an axis of rotation; and first and second valve cylinder devices provided in the cylinder block arranged about and extending outwards with respect to the axial bore , the first and second valve cylinder devices being axially offset from each other , the first and second valve cylinder devices being offset from each other about the axis of rotation , and the first valve cylinder device having an axial extent which overlaps the axial extent of the second valve cylinder device , wherein the first and second valve cylinder devices comprise first valves having respective first working fluid ports , the said respective first working fluid ports of the first valves of the first and second valve cylinder devices being in fluid communication with each other via a common conduit extending within the cylinder ...

Compact Radial Piston Hydraulic Machine Having a Cylinder Block with Deforming Regions

A hydraulic machine has a cylinder body with first and second ports and a plurality of cylinder bores disposed radially with openings through a side surface. Deformation regions, formed around each cylinder bore opening, expand and contract in response to pressure changes in the cylinder bores. A continuous band extends around the cylinder body closing the cylinder bore openings and applying a pre-stress compressive force to each deformation region. A plurality of pistons are slideably received in the plurality of cylinder bores and a plurality of valve arrangement couple the cylinder bores to the first and second ports. A shaft with an eccentric cam drives the pistons to slide within the cylinder bores. Each deformation region distorts in response to pressure in the associated cylinder bore wherein the circumference of that cylinder bore becomes more circular as the cylinder pressure increases.

HYDRAULIC SYSTEM

A hydraulic system has two hydraulic circuits, each with a pressure generating unit acting on an actuator unit. The generating units are slot-controlled radial piston pumps and form a pump assembly with a single common pump support and single common rotor. The rotor is rotatable on a free protruding section of a common support hub and has piston-receiving bores on axially offset planes. The hub has two first and two second fluid bores. The first bores communicate with first pump connections and first control openings on the hub on a first plane, and the second fluid bores communicate with second pump connections and second control openings on the hub on a second plane. A first and a second adjustment frame, each having an eccentric ring and acting on the pump pistons, are disposed on respective planes perpendicular to the main axis and independently guided in a linearly movable manner. 118-. (canceled)19. A hydraulic system , comprisinga first hydraulic circuit having a first actuator unit and a first pressure generating unit acting upon the first actuator unit, the first pressure generating unit having a reversible pump direction;a second hydraulic circuit having a second actuator unit and a second pressure generating unit acting upon the second actuator unit, the second pressure generating unit having a reversible pump direction;the first and the second pressure generation unit each being a slot-controlled radial piston pump; a single, common pump support with a common pump support hub, the common pump support hub having a fixed side and a free protruding section, the pump support hub further having two first fluid bores and two second fluid bores, the two first fluid bores communicating with two first pump connections and two first control openings arranged on the pump support hub on a first pump piston plane and the two second fluid bores communicating with two second pump connections and two second control openings arranged on the pump support hub on a second ...

FLUID ROUTING PLUG

A fluid routing plug for use with a fluid end section. The fluid end section being one of a plurality of fluid end sections making up a fluid end side of a high pressure pump. The fluid routing plug is installed within a horizontal bore formed in a fluid end section and is configured to route fluid between an intake and discharge bore. The fluid routing plug comprises a plurality of first and second fluid passages. The first and second passages do not intersect and are offset from one another. The first fluid passages are configured to direct fluid delivered to the horizontal bore from intake bores towards a reciprocating plunger. The second fluid passages are configured to direct fluid pressurized by the plunger towards a discharge bore. 1. A fluid routing plug , comprising:a body having a suction surface and an opposed discharge surface, in which the suction and discharge surfaces are joined by an outer intermediate surface; and in which the body has a central longitudinal axis that extends through the suction and discharge surfaces;a plurality of suction fluid passages formed in the body, each of the suction fluid passages interconnecting the intermediate surface and the suction surface; anda plurality of discharge fluid slots formed in the body, each of the discharge fluid slots interconnecting the suction and discharge surfaces of the body; in which at least a portion of at least one of the discharge fluid slots intersects a plane that contains the central longitudinal axis of the body.2. The fluid routing plug of claim 1 , in which at least a portion of each of the discharge slots has an arced cross-sectional shape.3. The fluid routing plug of claim 1 , in which each of the discharge fluid slots opens on the suction surface at a first opening and opens on the discharge surface at a second opening; in which a position of the first and second openings is determined relative to a plane containing a line perpendicular to the central longitudinal axis; in which the ...

High pressure pump

A high pressure pump comprising a fluid end mechanically coupled to a power end. The power end is modular and comprises a crankshaft section, a crosshead section, and a connector section coupled together by a first set of stay rods. The fluid end comprises a plurality of fluid end sections positioned in a side-by-side relationship. Each of the plurality of fluid end sections are attached to the power end using a plurality of second set of stay rods.

Novel Reciprocating Pump

A reciprocating pump includes a frame for a power end, a skid support structure integrally formed at a base of the power end frame to provide proper support and rigidity for the pump power end, where the integral skid support structure has a plurality of struts forming a series of chambers.

Brake Control Apparatus

A guide ring of a pump portion is fixed in a cylinder containing hole in such a manner that a distal end of a first end portion thereof is positioned in a cam containing hole on an upper side with respect to an opening edge of the cylinder containing hole. 1. A brake control apparatus comprising:a motor;a housing including a first surface on which the motor is disposed,a second surface spaced apart from the first surface by a predetermined distance in a direction of a rotational axis of the motor, and an insertion hole extending from the first surface toward the second surface in the direction of the rotational axis and configured to receive insertion of a shaft that is rotated by the motor; anda plunger pump including a plunger configured to be actuated by a rotation of the motor, and a bearing through which the plunger is inserted, the bearing being fixed to the housing so as to protrude in the insertion hole or be arranged coplanarly with the insertion hole.2. The brake control apparatus according to claim 1 , wherein the bearing includes a small inner-diameter portion and a large inner-diameter portion on an inner periphery thereof claim 1 , the large inner-diameter portion having a larger inner diameter than the small inner-diameter portion.3. The brake control apparatus according to claim 2 , wherein an axial length of the large inner-diameter portion is equal to or longer than a stroke range of the plunger.4. The brake control apparatus according to claim 2 , wherein a radially outer side of the large inner-diameter portion of the bearing is fixed to the housing.5. The brake control apparatus according to claim 4 , wherein the bearing includes a flange portion on an outer periphery thereof and on the radially outer side of the large inner-diameter portion.6. The brake control apparatus according to claim 1 , wherein the bearing includes a flange portion on an outer periphery thereof.7. The brake control apparatus according to claim 6 , wherein the bearing ...

Method for remanufacturing fluid end block

A method for remanufacturing a fluid end block of pump. The fluid end block includes a first bore defining a first longitudinal axis, a second bore defining a second longitudinal axis and a third bore defining a third longitudinal axis. The method includes enlarging, by a machining process, the first bore to a first predetermined dimension, the second bore to a second predetermined dimension and the third bore to a third predetermined dimension, inserting a first insert into the enlarged first bore and coupling the first insert to the fluid end block, the first insert having a first slot and a second slot, inserting a second insert into the enlarged second bore such that the second insert is at least partially received within the first slot and inserting a third insert into the enlarged third bore such that the third insert is at least partially received within the second slot.

PISTON PUMP AND PISTON MOTOR

A piston pump and a piston motor are provided. The piston pump includes a cylinder body, a piston, a main shaft, an end cover, and an oil dispensing mechanism. The oil dispensing mechanism includes an oil suction mechanism and an oil discharging mechanism. A roller is mounted on the piston, and the roller is rotatablely connected to the piston. A driving wheel is arranged on the main shaft, and the driving wheel is mounted in cooperation with the main shaft or is integrally formed with the main shaft. A driving groove is formed on the driving wheel, and a roller-path surface of the driving groove is a curved surface. The size of the driving groove is adapted to the size of an outer circle of the roller. The main shaft rotates to drive the driving wheel to rotate to further drive the piston to move along the cylinder bore. 1. A piston pump , comprising a cylinder body , a piston , a main shaft , an end cover , and an oil dispensing mechanism; wherein the cylinder body is coaxially connected to the main shaft; the piston is mounted in a cylinder bore of the cylinder body , and is configured to move along the cylinder bore; both ends of the cylinder body are sealed by the end cover;the oil dispensing mechanism comprises an oil suction mechanism and an oil discharging mechanism; a roller is mounted on the piston, and the roller is rotatably connected to the piston;a driving wheel is arranged on the main shaft; the driving wheel is mounted in cooperation with the main shaft, or the driving wheel is integrally formed with the main shaft; anda driving groove is formed on the driving wheel, and a roller-path surface of the driving groove is a curved surface; a size of the driving groove is adapted to a size of an outer circle an outer diameter of the roller; the main shaft rotates to drive the driving wheel to rotate to further drive the piston to move along the cylinder bore.2. The piston pump of claim 1 , wherein the oil suction mechanism employs a first dispensing-by- ...

Fluid End

A flangeless fluid end comprising a fluid end body releasably attached to a connect plate. The connect plate is attached to a power source using stay rods. The flow bores of the fluid end are sealed without threading a retainer nut into the walls of each bore. Instead, the flow bores are sealed by bolting a retainer to the fluid end body. Plungers to drive fluid through the fluid end body are installed within removable stuffing box sleeves. These sleeves are maintained within the plunger bores by the bolted retainers. A number of features, including the location of seals within bore walls and carbide inserts within valve structures, aid in reducing or transferring wear.

FLUID END

A fluid end comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section is releasably attached to a connect plate. Each connect plate is attached to a power source using a plurality of stay rods. Each fluid end section comprises a housing in fluid communication with a pair of intake manifolds and a discharge conduit. A fluid routing plug is installed within each housing and is configured to route fluid throughout the housing. A plunger is installed within stuffing box attached to each housing. A number of features, including the location of seals within bore walls and carbide inserts within valve guides, aid in reducing or transferring wear. 1. A fluid end section , comprising:a housing having a longitudinal axis and opposed first and second surfaces joined by an outer intermediate surface;a horizontal bore formed within the housing and interconnecting the first and second surfaces, the horizontal bore extending along the longitudinal axis of the housing;a discharge bore formed in the housing and interconnecting the horizontal bore and the intermediate surface;an intake bore formed in the housing and interconnecting the horizontal bore and the intermediate surface;a stuffing box engaging the second surface of the housing and having a plunger packing disposed therein;a retainer engaging the stuffing box opposite the housing and having a central passage formed therein;a plurality of fasteners securing the stuffing box and the retainer to the housing; anda packing nut installed within the central passage of the retainer and engaging the plunger packing.2. The fluid end section of claim 1 , further comprising:a reciprocating plunger disposed within the stuffing box, the retainer, the plunger packing, and the packing nut.3. The fluid end section of claim 1 , in which the plurality of fasteners are threaded studs claim 1 , the fluid end section further comprising:a plurality of threaded nuts, each nut installed on a ...

Common rail multi-cylinder fuel pump with independent pumping plunger extension

A fuel pump for an internal combustion engine is provided comprising a barrel including a central bore having a longitudinal axis, a plunger disposed partially in the central bore and movable along the longitudinal axis, a spring retainer, a first coil spring having a proximal end in contact with a first section of the barrel and a distal end in contact with the spring retainer to urge the spring retainer into engagement with a tappet assembly, an extender element coupled to the plunger, and a second coil spring having a proximal end in contact with a second section of the barrel and a distal end in contact with the extender element to urge the plunger toward the spring retainer, wherein the extender element includes a counter-bore to couple the extender element to the plunger.

CALORIC HEAT PUMP SYSTEM

A caloric heat pump system includes a pump is operable to circulate a working fluid through a stage. The pump includes a motor. A cam is coupled to the motor such that the cam is rotatable by the motor. The cam has a non-circular outer profile surface. Each piston of a pair of pistons has a cam follower positioned on the non-circular outer profile surface of the cam. 1. A caloric heat pump system , comprising:a regenerator housing comprising a plurality of chambers;a plurality of stages, each stage comprising a caloric material disposed within a respective chamber of the plurality of chambers;a plurality of conduits, each conduit coupled to the regenerator housing at a respective one of the plurality of chambers;a pump coupled to the conduits of the plurality of conduits, the pump operable to circulate a working fluid through the conduits of the plurality of conduits and the stages of the plurality of stages; anda plurality of flow restrictors, each flow restrictor coupled to the regenerator housing or a respective one of the plurality of conduits, the flow restrictors of the plurality of flow restrictors configured such that a flow rate of the working fluid through each stage of the plurality of stages is uniform.2. The caloric heat pump system of claim 1 , wherein the flow restrictors of the plurality of flow restrictors comprise at least one of an orifice claim 1 , a needle valve or a pinch valve.3. The caloric heat pump system of claim 1 , wherein the flow restrictors of the plurality of flow restrictors are orifices and are positioned on the regenerator housing.4. The caloric heat pump system of claim 1 , wherein the flow restrictors of the plurality of flow restrictors are needle valves or pinch valves and each flow restrictor is coupled to the respective one of the plurality of conduits.5. The caloric heat pump system of claim 1 , wherein the plurality of stages comprises four stages and at least two of the four stages are plumbed in parallel with the ...

PUMP AND A DESALINATION SYSTEM INCLUDING THE PUMP

A pump adapted for use in desalination systems that has four cylinders, with a double acting piston in each cylinder. Each cylinder and piston thereby defines a feed chamber and a recovery chamber. The pistons are connected to a common drive. The connection to the common drive is such that the pistons reciprocate in a sequence equally spaced in time. Reciprocating valving for each piston is driven by the common drive to be 90 degrees out of phase with the respective piston. 1. A pump comprising:a plurality of cylinders,a double acting piston in each cylinder, thereby defining a feed chamber and a recovery chamber, all connected to a common drive by a connection, wherein there is no lost motion mechanism associated with each piston,the connection to the common drive being such that pistons reciprocate in a sequence equally spaced in time,valving for each piston driven by the common drive to be 90 degrees out of phase with the respective piston,the valving being such as to connect the recovery chamber alternately to an inlet manifold for an intake stroke of the piston relative to the recovery chamber, and to an outlet manifold for a discharge stroke of the piston relative to the recovery chamber, with a brief period of closure coinciding with top dead centre and bottom dead centre of the piston, during which the recovery chamber is blocked off from both the inlet and outlet manifolds,the valving being midway between its top dead centre and bottom dead centre during the period of closure.2. The pump as claimed in wherein the connection includes a piston rod extending from each piston and reciprocating with the respective piston claim 1 , and the valving for each cylinder is operated by the reciprocating of the piston rod of another cylinder.3. The pump as claimed in wherein the connection includes a crankshaft and a connecting rod connecting between each piston rod and the crankshaft.4. The pump as claimed in wherein the valving for each cylinder comprises a spool or ...

Piston Pump for Conveying Pressure Medium in a Pressure Medium Circuit

A piston pump is configured to convey pressure medium in a pressure medium circuit, in particular in a braking circuit of a motor vehicle braking system that may be electronically controlled to counteract slip. The pump piston delimits an operating chamber and is received in a displaceable manner in a pump cylinder and may be driven to produce a stroke movement that goes back and forth between two reversing positions. The operating chamber may be connected in a controllable manner to a pump inlet or outlet. A pressure medium connection is provided from the pump outlet to the operating chamber, said pressure medium connection is controllable in dependence upon a relative position of the pump piston with respect to the first reversing position. Pressure pulsations of the piston pump are prevented and the operating noise is reduced.

HYDRAULIC TRANSMISSION

A hydraulic transmission comprising a variable displacement pump and motor, at least one having cylinders having valves which are controllable on each cycle of cylinder working volume to determine the net displacement of working fluid by the cylinder. The transmission has a valve control module which determines a displacement of the pump and the motor by specifying a displacement demand. The pump and/or motor valve control module determine the frequency of intensity peaks in the frequency spectrum of the pattern of cylinders carrying out active and inactive cycles of cylinder working volume using a first procedure and, if these will fall within disallowed frequency bands including the resonant frequency of components with which the transmission is in mechanical communication, the displacement demand, or another input, is periodically modified to suppress generation of those frequencies. The hydraulic transmission is useful for example in a wind turbine generator, or a vehicle. 1. A hydraulic pump or motor comprising:a rotatable shaft,a shaft sensor which measures the position or speed of rotation of the rotatable shaft,at least one cam having at least one lobe,a plurality of cylinders having working volumes which vary cyclically with rotation of the rotatable shaft,a low pressure working fluid line and a high pressure working fluid line,a plurality of valves regulating the flow of working fluid between each cylinder and the low and high pressure working fluid lines, at least one said valve associated with each cylinder being an electronically controlled valve,wherein the hydraulic pump or motor comprises a valve control module configured to generate command signals to actively control the said electronically controlled valves in phased relationship to cycles of cylinder working volume, to thereby determine whether each cylinder carries out an active cycle in which there is a net displacement of working fluid or an inactive cycle in which there is no net displacement ...

Segmented fluid end

A segmented fluid end is provided, the fluid end comprising a plurality of fluid end segments, each comprising a plunger manifold, intake head, and pressure head. In preferred embodiments, the fluid end comprises three fluid end segments (“triplex”) or five fluid end segments (“quint”). The plunger manifold comprises first and second mounting surfaces, each comprising a fluid opening. An intake head mounting flange is adapted to be removably coupled to the first mounting surface and a pressure head mounting flange is adapted to be removably coupled to the second mounting surface. The plunger manifold comprises a plunger mounting member comprising a plunger opening adapted to receive a plunger. The pressure heads are adapted for cooperative coupling to adjacent pressure heads, such that, when coupled, the pressure heads are in fluid communication with one another. Methods of replacing the fluid end segments, plunger manifolds, pressure heads, and intake heads are provided.

Spherical pump valve

A spherical pump valve. The valve includes a valve cage, a spring, a valve member, a valve seat, and a locking ring. The valve cage has a groove holding the spring and threads. The valve member has a stem and a trench holding the spring. The valve seat has a seating surface, threads that match the valve cage threads and upon threaded engagement secure the valve seat to the valve cage, and a channel. The locking ring is installed in the channel and secures the valve cage to the valve seat. The spring has a rate matched to the weight of the valve member and to the flow area of the valve seat. The stem guides the valve member as the stem travels through a center hole of the valve cage. Also disclosed is a pump including the valve.

Valve timing in electronically commutated hydraulic machine

An electronically commutated hydraulic machine is coupled to a drivetrain. Working chambers of the hydraulic machine are connected to low and high pressure manifold through electronically controlled valves. The phase of opening and closing of the valves has a default. In order to avoid cycle failure due to acceleration events, for example due to backlash in the drivetrain, the phase of opening or closing of the electronically controlled valves is temporarily advanced or retarded from the default timing.

Rotary cylinder device

A plurality of guide shafts which are disposed parallel to an input/output shaft (a first input/output shaft, a second input/output shaft) are assembled in a case body which holds a cylinder in which first and second piston sets, move reciprocally. A first guide bearing, which abuts both side surfaces of a first piston body and receives only lateral pressure generated by the reciprocal movement, and a second guide bearing, which abuts both side surfaces of a second piston body and receives only lateral pressure generated by the reciprocal movement, are assembled coaxially and separated in an axial direction on each guide shaft.

OFFSET VALVE BORE FOR A RECIPROCATING PUMP

A fluid end for a multiple reciprocating pump assembly comprises at least three plunger bores or , each for receiving a reciprocating plunger . Each plunger bore has a plunger bore axis or . The plunger bores are arranged across the fluid end to define a central plunger bore and lateral plunger bores located on either side of the central plunger bore. The fluid end also comprises at least three respective suction valve bores or in fluid communication with the plunger bores. Each suction valve bore can receive a suction valve and has a suction valve bore axis or . The fluid end also comprises at least three respective discharge valve bores or in fluid communication with the plunger bores. Each discharge valve bore can receive a discharge valve and has a discharge valve bore axis or . At least one of the axes of at least one of the suction and discharge valve bores is offset in the fluid end from its respective plunger bore axis. 141-. (canceled)42. A method of pumping fluid , the method comprising:conveying fluid from a first flowpath to a second flowpath that is located above the first flowpath and that defines a first longitudinal center axis that is perpendicular to the first flowpath;conveying the fluid from the second flowpath and into a pump chamber that is located above the second flowpath and thus also above the first flowpath;pressurizing the fluid within the pump chamber, comprising reciprocatingly driving a plunger in the pump chamber along a second longitudinal center axis that is perpendicular to the first longitudinal center axis and either intersects, or is horizontally spaced from, the first longitudinal center axis;conveying the pressurized fluid out of the pump chamber via a third flowpath that is located above the pump chamber, is opposed to the second flowpath, and defines a third longitudinal center axis that is perpendicular to the second longitudinal center axis and is either horizontally spaced in a parallel relation from, or coaxial with, the ...

Pump With Segmented Fluid End Housing and In-Line Suction Valve

A plunger pump fluid end in which the suction valve and seat is aligned with the plunger and the fluid end housing is constructed with multiple modules. Modules are held in a rigid assembly by staybolts that connect to the power end of the plunger pump. Said staybolts pass though bores in the central fluid module and the suction seat module and bound by a conventional threaded nut. Packing box modules are bound to the central fluid module by bolts that also pass through separate bores in the same central module. A suction valve spring retainer/plunger spacer within the plunger bore of the assembly shields the intersection of the plunger bore and the discharge bore from destructive erosion damage. 1. A plunger pump fluid end comprising: a central fluid module;', 'a plurality of packing box modules;', 'a plurality of suction seat modules; and, 'a modular housing, wherein said housing further comprisesa plurality of suction valve spring retainer/plunger spacers;a plurality of plungers and plunger packings; anda plurality of suction valves and seats and a plurality of discharge valves and seats;wherein the number of suction seat modules is equal to the number of plunger packing box modules and also is equal to the number of said plungers;wherein each of said central fluid modules comprises a plurality of central fluid chambers and the number of said central fluid chambers equals the number of said plungers;wherein each of said central fluid chambers comprises a plunger bore and a discharge bore;wherein centerline axes of a bore of said suction seat module and a bore of a packing box module are colinear with centerline axes of said plunger bore in each central fluid chamber;wherein a centerline axis of said discharge bore is perpendicular to the centerline axes of said suction bore and said plunger bore;wherein the number of suction valves and seats equals the number of discharge valves and seats which is also equal to the number of plungers in said fluid end;wherein the ...

Hydraulic Control Apparatus and Brake System

An object of the present invention is to provide a hydraulic control apparatus capable of further effectively preventing or reducing a vibration. A second unit includes a housing including fluid passages and the like provided therein and configured to be mounted on a vehicle, a rotational driving shaft provided inside the housing, and a plurality of pump portions configured to be activated by a rotation of the rotational driving shaft and disposed in a direction around a central axis of the rotational driving shaft inside the housing. The pump portions are provided in such a manner that the number of pump portions positioned on a vertically lower side is larger than the number of pump portions positioned on a vertically upper side with respect to the central axis of the rotational driving shaft with the housing mounted on the vehicle.

PLUNGER PUMP AND BRAKING DEVICE

Provided is a plunger pump where quietness can be ensured. A plunger pump includes a cylinder, a piston, a discharge valve, and a plug member. The plug member includes: a recessed portion formed on a circumferential wall of a discharge chamber opposing an outer periphery of the discharge valve in a radial direction; and a discharge passage disposed at a position different from the recessed portion, formed on the circumferential wall of the discharge chamber opposing the outer periphery of the discharge valve in the radial direction, and connecting the discharge chamber and the outside with each other. 1. A plunger pump comprising:a cylinder;a piston accommodated in the cylinder in a movable manner;a discharge valve disposed on a side opposite to the piston in a direction of a movement axis of the piston, and defining a compression chamber in cooperation with the piston and an inner periphery of the cylinder; anda plug member defining a discharge chamber in cooperation with the discharge valve in the direction of the movement axis of the piston, whereinthe plug member includesa recessed portion formed on a circumferential wall of the discharge chamber opposing an outer periphery of the discharge valve in a radial direction, anda discharge passage disposed at a position different from the recessed portion, formed on the circumferential wall of the discharge chamber opposing the outer periphery of the discharge valve in the radial direction, and connecting the discharge chamber and an outside with each other.2. The plunger pump according to claim 1 , whereinthe recessed portion is formed in a range, in the direction of the movement axis of the piston, from the cylinder side to a position reaching or overreaching half of the discharge valve.3. The plunger pump according to claim 2 , whereinthe discharge passage is formed in a range, in the direction of the movement axis of the piston, from the cylinder side to a position which does not overreach the half of the ...

DISPLACING DEVICE

A displacement device for fluids, in particular liquids has linearly movable displacement bodies which dip into pump chambers and are connected via respectively one connecting rod to crank pins of an externally driven crank shaft, wherein at least two groups of displacement bodies are provided. All the groups each have the same number of displacement bodies and the crank pins for the displacement bodies are arranged distributed around the crank shaft at the same angular distances. The crank pins assigned to one group are arranged with respect to those of the other group each offset by an offset angle β around the crank shaft. Furthermore, the displacement bodies of each group are arranged offset in the axial direction of the crank shaft with respect to those of the other groups and the group displacement bodies are each arranged around the crank shaft at a group offset angle γ with respect to one another. The displacement device enables low pressure pulsations. 1. A displacement device for fluids , in particular liquids , comprising linearly movable displacement bodies which dip into the displacement device and are each connected via a connecting rod to crank pins of an externally driven crank shaft , whereinat least two groups (A; B) of displacement bodies are provided,all the groups each have an equal number of displacement bodies,the crank pins for the displacement bodies are arranged distributed around the crank shaft at the same angular distances (α),the crank pins assigned to one group (B) are arranged around the crank shaft with respect to those of the other groups (B) in each case offset by an offset angle (β),the displacement bodies of each group (B) are arranged in the axial direction of the crank shaft offset with respect to those of the other groups (A) andthe groups (A; B) of displacement bodies are each arranged offset to one another by a group offset angle (γ) around the crank shaft.2. The displacement device according to claim 1 , characterized in ...

Multiple-Pump Valve Monitoring System

A monitoring system may include strain gauges and position sensors corresponding to multiple pressure pumps. The strain gauge for each pressure pump may measure the strain in a respective chamber of each pump. The position sensor for each pump may measure the position of a rotating member of each pump. The monitoring system may also include one or more computing devices for determining actuation delays associated with valves corresponding to the respective chamber of each pump using expected actuation points and actual actuation points of the valves. The computing devices may compare the actuation points for the valves of all of the pressure pumps to determine a condition of a valve in one of the pressure pumps. 1. A monitoring system , comprising:a plurality of strain gauges positionable on a plurality of pressure pumps, each strain gauge of the plurality of strain gauges being positionable on a respective pressure pump of the plurality of pressure pumps to measure strain in a respective chamber of the respective pressure pump;a plurality of position sensors positionable on the plurality of pressure pumps, each position sensor of the plurality of position sensors being positionable on the respective pressure pump of the plurality of pressure pumps to sense a position of a rotating member of a rotating assembly that is mechanically coupled to a displacement member for the respective chamber of the respective pressure pump;one or more computing devices communicatively couplable to one or more pressure pumps of the plurality of pressure pumps to determine actuation delays associated with a plurality of valves located in the plurality of pressure pumps using an expected actuation points and an actual actuation points of the plurality of valves and to compare the actuation delays from each valve of the plurality of valves to determine a condition of a valve of the plurality of valves, wherein each valve of the plurality of valves is located in a separate pressure pump ...

Rotary hydraulic machine

A rotary hydraulic machine with radial pistons comprising: a rotating shaft ( 2 ); a cylinder-housing body ( 3 ), having a plurality of housing seatings ( 4 ) arranged radially at equal distances from the rotation axis (R) of the rotating shaft ( 2 ); a cylinder ( 5 ) housed in each of said plurality of housing seatings ( 4 ) and rotating relative to the same around an axis (C) concentric with said rotation axis (R) of the rotating shaft ( 2 ); a piston ( 6 ) slidable in each cylinder ( 5 ) and coupled to a crank ( 7 ) of the rotating shaft ( 2 ); a supply conduit ( 12 ), for each cylinder ( 5 ), provided with a seal ( 120 ) arranged to enable a sealed connection between the supply conduit ( 12 ) and the respective cylinder ( 5 ). Each seal ( 120 ) comprises: a first ring ( 121 ), arranged at an end of the supply conduit ( 12 ) and placed in contact with the cylinder ( 5 ); a second ring ( 122 ), concentric to the first ring ( 121 ) and interposed between the supply conduit ( 12 ) and the first ring ( 121 ), wherein the second ring ( 122 ) is coupled by interference with the first ring ( 121 ) and is inserted by interference into the supply conduit ( 12 ) in such a way as to prevent a rotation of the first ring ( 121 ) with respect to the supply conduit ( 12 ) around a common axis (X).

Power end frame assembly for reciprocating pump

A plate segment for a reciprocating pump power end frame assembly, the power end frame assembly having a pair of end plate segments and at least one middle plate segment disposed between the end plate segments. The plate segment consists of the middle plate segment or one of the pair of end plate segments and includes a plate having a front wall, a rear wall, a top wall, a bottom wall and a pair of sidewalls and at least one opening forming a bearing support surface, the opening extending through the plate. The plate segment further includes at least one extension extending from at least one of the sidewalls of the plate at a position to align with and contact a corresponding extension on an adjacently positioned plate.

MEMBRANE FLUID PUMP

A membrane fluid pump includes a rotatable drive shaft. The shaft is equipped with a number of eccentrics arranged axially along the shaft. The membrane fluid pump further comprises a set of connecting rods connected to each of the eccentrics. Each connecting rod is attached between one of the eccentrics on the shaft and a corresponding membrane so that each of the connecting rods is arranged to transfer a rotating movement of the shaft to a reciprocating movement pattern of the corresponding membrane. Each of the eccentrics and the connecting rods are arranged such that all of the membranes will reciprocate with a phase shift evenly distributed over a 360 degree rotation of the drive shaft, and wherein all of the eccentrics are rotationally offset to each other with an angle so that they are evenly distributed over a 360 degree rotation of the drive shaft. 1. A membrane fluid pump comprising:a drive shaft rotatable within said membrane fluid pump,a plurality of eccentrics arranged axially along the drive shaft,a set of connecting rods being connected to each eccentric, wherein each connecting rod of said set of connecting rods is attached between one of said plurality of eccentrics on said drive shaft and a corresponding membrane, so that each of said connecting rods is arranged to transfer a rotating movement of said drive shaft to a reciprocating movement pattern of the corresponding membrane,wherein each eccentric and said connecting rods are arranged such that all of said membranes will reciprocate with a phase shift evenly distributed over a 360 degree rotation of said drive shaft, andwherein all of said eccentrics are rotationally offset to each other with an angle so that they are evenly distributed over a 360 degree rotation of said drive shaft.2. (canceled)3. The membrane fluid pump according to claim 1 , wherein the connecting rods of each set of connecting rods are arranged to reciprocate from a same axial position along said drive shaft.4. The membrane ...

RADIALLY CONFIGURED OIL-FREE COMPRESSOR

An oil-free compressor for a rail vehicle includes a compressor housing, a first low pressure piston cylinder supported in the compressor housing, a second low pressure piston cylinder supported in the compressor housing, a first high pressure piston cylinder supported in the compressor housing, a second high pressure piston cylinder supported in the compressor housing, and a crankshaft assembly supported by the compressor housing and linked to pistons of the piston cylinders by respective connecting rods. The first and second low pressure piston cylinders and the first and second high pressure piston cylinders are positioned in an X-shaped configuration around an outer circumference of the compressor housing. The first and second high pressure piston cylinders are configured as first and second lower legs of the X-shaped configuration, and the first and second low pressure piston cylinders are configured as first and second upper legs of the X-shaped configuration. 1. An oil-free compressor for a rail vehicle , comprising:a compressor housing;a first low pressure piston cylinder supported in the compressor housing;a second low pressure piston cylinder supported in the compressor housing;a first high pressure piston cylinder supported in the compressor housing;a second high pressure piston cylinder supported in the compressor housing; anda crankshaft assembly supported by the compressor housing and linked to pistons of the piston cylinders by respective connecting rods,wherein the first and second low pressure piston cylinders and the first and second high pressure piston cylinders are positioned in an X-shaped configuration around an outer circumference of the compressor housing.2. The oil-free compressor as claimed in claim 1 , wherein the first and second high pressure piston cylinders are configured as first and second lower legs of the X-shaped configuration claim 1 , and the first and second low pressure piston cylinders are configured as first and second ...

Connecting rod for an air compressor

A connecting rod for an air compressor includes a rod member, a wrist pin receiving end connected to a first end of the rod member, and a crank pin receiving end connected to a second opposing end of the rod member. A separation line for the connecting rod is provided above the crank pin receiving end. The separation line may be provided between the crank pin receiving end and the rod member. The connecting rod may include a first portion including the rod member and the wrist pin receiving end, and a separate second portion including the crank pin receiving end. The separation line may be provided between the first portion and the second portion.

HIGH-PRESSURE FUEL SUPPLY PUMP, MANUFACTURING METHOD THEREOF, AND METHOD OF BONDING TWO MEMBERS

Provided is a high-pressure fuel supply pump capable of fixing a cylinder to a pump body with excellent sealability in a simple structure even at a high fuel pressure. 1. A high-pressure fuel supply pump includinga pump body in which a pressurizing chamber is formed, anda cylinder inserted into a hole formed in the pump body and formed in a cylindrical shape, the high-pressure fuel supply pump comprising:a protrusion disposed at an end portion of the pump body opposite to the pressurizing chamber, formed from an outer peripheral side to an inner peripheral side with respect to an inner peripheral surface opposite to an outer peripheral surface of the cylinder, and protruding toward the cylinder,wherein the protrusion is formed so as to protrude to a side opposite to the pressurizing chamber with respect to a flat portion of the end portion of the pump body, andthe protrusion is formed so as to support the cylinder from a side opposite to the pressurizing chamber.2. The high-pressure fuel supply pump according to claim 1 ,wherein an inner peripheral portion of the protrusion is formed so as to be inclined toward the inner peripheral side from the inner peripheral surface opposed to the outer peripheral surface of the cylinder toward the side opposite to the pressurizing chamber.3. The high-pressure fuel supply pump according to claim 1 ,wherein an inner peripheral portion of the protrusion is formed so as to be inclined toward the inner peripheral side from the inner peripheral surface opposed to the outer peripheral surface of the cylinder toward the side opposite to the pressurizing chamber, and the cylinder is supported by a side surface of the pressurizing chamber of the inner peripheral portion of the protrusion.4. The high-pressure fuel supply pump according to claim 1 ,wherein pressure is applied to the protrusion of the pump body from the side opposite to the pressurizing chamber such that the protrusion comes into contact with a side surface of an anti- ...

Piston arrangement

A piston arrangement including a track and a piston moveable within a cylinder; wherein the track is adapted to rotate relative to the cylinder about an axis of rotation and has a cam surface and an edge surface extending away from the cam surface; wherein the piston is coupled to the track by a follower running on the cam surface; wherein the cam surface is shaped such that, as the track moves relative to the cylinder, the piston head moves in reciprocating motion within the cylinder in accordance with the path of the cam surface; wherein a stabilising element is connected to the piston, the stabilising element extending below the piston head and comprising a contact surface which engages the edge surface of the track.

Radial Piston Pump and Wind Power Generator

To provide a radial piston pump capable of displacement control without using an electronic control valve. For achieving the above object, the radial piston pump includes: a first cam circumferentially varying in radius on an inner circumferential side or outer circumferential side of the cam in a continuous manner; a second cam circumferentially varying in radius on an inner circumferential side or outer circumferential side of the cam in a continuous manner; a first operation member operating along a side of the first cam on which the radius of the cam continuously varies; a second operation member operating along a side of the second cam on which the radius of the cam continuously varies; a first piston connected to the first operation member; a second piston connected to the second operation member; a cylinder connecting with the first piston and the second piston and varied in volume by motion of at least one of the first piston and the second piston; and an adjustment unit for rotating at least one of the first cam and the second cam. 1. A radial piston pump comprising:a first cam circumferentially varying in radius on an inner circumference side or outer circumferential side of the cam in a continuous manner;a second cam circumferentially varying in radius on an inner circumference side or outer circumferential side of the cam in a continuous manner;a first operation member operating along a side of the first cam on which the radius of the cam continuously varies;a second operation member operating along a side of the second cam on which the radius of the cam continuously varies;a first piston connected to the first operation member;a second piston connected to the second operation member;a cylinder connecting with the first piston and the second piston and varied in volume by motion of at least one of the first piston and the second piston; andan adjustment unit for rotating at least one of the first cam and the second cam.2. The radial piston pump according ...

A Fluid End and Method of Manufacturing IT

The present invention discloses a Fluid End and its manufacturing method. The conventional fluid end manufacturing methods involve machining of all surfaces. 11232341872382315656. A fluid end () comprising a main block () , a flange () , said main block () and flange () connected by a neck () wherein said fluid end () has a first and a second surface (and ) , said first surface () being the surface of said main block () nearer the flange () and said second surface () being the surface of said main block () away from said flange () , and wherein said fluid end () has a number of assembly () and non-assembly surfaces () , characterised in that assembly surfaces () are finished by machining and at least some of non-assembly surfaces () are left in as-forged condition as indicated in .2. A method of manufacturing a fluid end characterised in that said process comprises the steps ofa. forging of an ingot into a billet using open die method;b. forging said billet by providing blows in multiple steps to achieve near net shaped fluid end;c. rough machining outer surfaces of assembly areas of the said near net shaped fluid end and keeping non-assembly surfaces as forged to achieve rough machined near net shaped fluid end;d. providing heat treatment to said rough machined near net shaped fluid end to achieve a heat treated rough machined near net shaped fluid end;e. providing further semi-finish or partial or rough machining to the said heat treated rough machined near net shaped fluid end;f. drilling for creating internal pathways;g. providing finish machining to produce fluid end.3. A method as claimed in characterised in that said multiple steps of providing blows further comprise the steps of:a. heating said billet to forging temperature and providing a first set of blows to produce a first-heated finisher;b. if required, heating the first-heated finisher further and providing a second set of blows by placing said first-heated finisher in a closed die to produce a second- ...

LINER FOR FRAC PUMP SUCTION MANIFOLD

Frac pumps have liners for a suction manifold that is adapted to provide fluid to a plurality of intake ports of a multi-unit reciprocating pump. The liners comprise a compressible, resilient body. The compressible, resilient body is carried within the suction manifold. When installed in the suction manifold, the body defines a channel extending through the manifold that is adapted to convey fluid from an inlet of the suction manifold to the intake ports of the pump units. The cross-sectional area of the channel diminishes along the direction of flow through the channel. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. (canceled)22. (canceled)23. (canceled)24. A liner for a suction manifold adapted to provide fluid to a plurality of intake ports of a unit reciprocating pump , said liner comprising:(a) a compressible, resilient body carried within said suction manifold;(b) said body, when installed in said suction manifold, defining a channel extending through said manifold and adapted to convey fluid from an inlet of said suction manifold to said intake ports of said pump units; and(c) wherein the cross-sectional area of said channel diminishes along the direction of flow through said channel.25. The liner of claim 24 , wherein said body is fabricated from a closed-cell foamed material.26. The line of claim 25 , wherein said body is fabricated from a foamed nitrile butadiene rubber.27. The liner of claim 24 , wherein said body is generally cylindrical and said channel extends laterally along the length of said body and has an open top.28. The liner of claim 27 , wherein the depth of said channel diminishes along the direction of flow through said channel.29. The liner of claim 27 , wherein the width of said channel diminishes along the ...

Flexible Manifold for Reciprocating Pump

A hose for a reciprocating pump, the hose comprising: a first end and a second end separated by a length (L) along a centerline of the hose, wherein the first end reciprocates with a reciprocating element of the reciprocating pump during operation of the reciprocating pump; an inner surface and an outer surface separated by a thickness; and a variable bend radius wherein a bend radius of a first section of the hose is different from a bend radius of at least one second section of the hose, such that, during operation of the reciprocating pump, a stress on the first end of the hose, the second end of the hose, or both the first end of the hose and the second end of the hose is reduced relative to that of a hose that does not contain the variable bend radius.

Novel Reciprocating Pump

A reciprocating pump includes a frame for a power end, a skid support structure integrally formed at a base of the power end frame to provide proper support and rigidity for the pump power end, where the integral skid support structure has a plurality of struts forming a series of chambers. 1. A reciprocating pump power end housing comprising:a frame;a skid support structure integrally formed at a base of the power end frame to provide proper built-in support and rigidity for the pump power end without altering outer dimensions of the power end;an integrally-formed crosshead guide tube and noseplate structure; andwherein the integrally-formed skid support structure comprises a plurality of struts forming a series of chambers.2. The reciprocating pump power end housing of claim 1 , wherein the integrally-formed support structure comprises a plurality of vertical struts forming a series of chambers having a shape selected from the group consisting of rectangular claim 1 , square claim 1 , and triangular.3. The reciprocating pump power end housing of claim 1 , wherein the integrally-formed support structure comprises a plurality of vertical struts forming a series of chambers at the base along front and back of the frame.4. The reciprocating pump power end housing of claim 1 , wherein the integrally-formed support structure comprises a plurality of vertical struts forming a series of inner chambers and a series of outer chambers at the base of the frame.5. The reciprocating pump power end housing of claim 1 , wherein the integrally-formed support structure comprises a plurality of vertical struts forming a series of inner chambers and a series of outer chambers at the base of the frame claim 1 , where the location of the vertical struts of the inner chambers and the outer chambers is staggered.6. The reciprocating pump power end housing of claim 1 , wherein the integrally-formed crosshead guide tube and nosteplate structure comprises an upper component and a lower ...

Fuel pump, fuel system and method for operating a fuel system and an internal combustion engine

One or more working chambers (48) has an individually-controlled valve (54). This allows it to be connected to the low pressure region (18) when required, so that for an interval there is no transfer from this chamber to the high pressure outlet (20). <??>Independent claims are included for the corresponding method of operation, an engine, a controller and a computer program product, especially in flash memory.

Piston pump and cam operated element of this

Die vorliegende Anmeldung offenbart eine Kolbenpumpe und ein nockenbetriebenes Element von dieser. Die Kolbenpumpe umfasst ein Gehäuse, eine Nockenwelle, einen Kolben und ein nockenbetriebenes Element. Ein Stift des nockenbetriebenen Elements umfasst, verteilt entlang seiner axialen Richtung, einen ersten Bereich, einen dritten Bereich und einen zweiten Bereich, wobei sich der dritte Bereich zwischen dem ersten Bereich und dem zweiten Bereich befindet, der erste Bereich in einem ersten Stiftloch eines Mitnehmerkörpers installiert ist, der zweite Bereich im zweiten Stiftloch installiert ist, sich der dritte Bereich in einem rollenden Hohlraum des Mitnehmerkörpers befindet, der Durchmesser des ersten Bereichs nicht größer ist als der Durchmesser des zweiten Bereichs und der erste Bereich und das erste Stiftloch derart zusammengepasst sind, dass sie nicht zu einer relativen Drehung fähig sind. Eine Rolle ist auf dem dritten Bereich des Stifts installiert, sodass sie in der Lage ist, sich relativ zum Stift zu drehen. Der Stift nutzt sich nicht leicht ab und die Kolbenpumpe und das nockenbetriebene Element sind langlebig und widerstandsfähig. The present application discloses a piston pump and a cam operated member thereof. The piston pump comprises a housing, a camshaft, a piston and a cam-driven element. A pin of the cam-driven member includes, distributed along its axial direction, a first region, a third region, and a second region, the third region being between the first region and the second region, the first region being installed in a first pinhole of a driver body , the second area is installed in the second pin hole, the third area is in a rolling cavity of the cam body, the diameter of the first area is not larger than the diameter of the second area, and the first area and the first pin hole are mated such that they are not capable of relative rotation. A roller is installed on the third area of the pen so that it is able to rotate relative to the pen. The ...

Radial pump

In a valveless pump, a pump body, having a central chamber, is provided with a radially disposed array of pistons movable toward and away from the axis of the pump body. Cylinder heads cooperate with the pistons in controlling fluid movement through the pump. A drive shaft extends axially into the pump chamber and includes a surrounding eccentric cam. A linkage assembly pivotally connects the inward end portions of the several pistons with a tether ring surrounding the drive shaft for maintaining the pistons in contact with the eccentric cam and reciprocating the pistons in sequence for moving fluid through conduits sequentially communicating with the several piston cylinders.

Variable radial-piston pump comprising digital flow rate adjustment

A valve-controlled radial piston pump comprising digital flow rate adjustment is described, which by virtue of design measures and by a specific combination of components achieves a significant improvement of the volumetric efficiency, particularly when used with low-viscosity media such as water and HFA, especially in the high-pressure range. One of the essential individual measures consists in a piston-cylinder arrangement free of transverse forces, by virtue of which an increase of the piston travel and, as a result, a considerable improvement in the volumetric efficiency can be achieved. A further combined measure is a digital flow rate adjustment by regulating elements which are assigned to the individual intake valves and prevent these from closing during the discharge stroke. Said digital flow rate adjustment, compared to the conventional analog flow rate adjustments, plays just as significant a role in improving the volumetric efficiency, especially in the reduced flow rate range.

Membrane fluid pump

The invention relates to a membrane fluid pump(1), comprising a drive shaft (2) rotatable within the membrane fluid pump. The shaft is equipped with a number of eccentrics (7) arranged axially along the shaft(2). The membrane fluid pump further comprises a set of connecting rods(3, 4)being connected to each of the eccentrics(7), where in each connecting rod (3, 4) is attached between one of the eccentrics (7) on the shaft (7) and a membrane (3'', 4''), so that each of the connecting rods(3, 4)is arranged to transfer a rotating movement of the shaft (2) to a reciprocating movement pattern of each the membrane(3'', 4''). Each of the eccentrics (7) and the connecting rods (3, 4)are arranged in such a manner that all of the membranes (3'', 4'') will reciprocate with a phase shift evenly distributed over a 360 degree rotation of the drive shaft(2), and wherein all of the eccentrics (7) are rotationally offset to each other with an angle so that they are evenly distributed over a 360 degree rotation of the drive shaft(2).

고압 연료 펌프

본 발명은 저압 영역(20)을 갖는 고압 연료 펌프(10)에 관한 것으로, 상기 저압 영역은 체적(30)의 변화를 위해 휴지 위치로부터 편향 가능한 밀봉 부재(28)에 의해 획정되고, 제어 가능한 조절 부재(38)는 요구에 따라 상기 밀봉 부재(28)와 상호 작용하며 상기 저압 영역(20)의 체적(30)을 제어한다.

定量ポンプおよびその制御方式

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

可变流体流量液压泵

一种可变流体流量液压泵，包括具有固定容积腔3的一个或更多个排量主体2。在固定容积腔3中，活塞4循环运动或往复运动，因此提供流体的运动。还设置连接所述排量腔与低压侧5的低压阀9。在本发明的实施例中，在高压侧7上还设置高压阀6。低压阀9设置有在其上提供开启力以及还提供关闭力的可调节装置10或F control ，该关闭力周期性地在泵送行程期间增加以及所述活塞4在排量主体3内往复运动的吸入行程期间降低，并且该低压阀还包括在排量腔3中的压力小于低压侧5的压力时将流体从低压侧5供给至排量主体3的所述固定容积腔3的装置。

活塞泵

本发明涉及一种用于高压输送待输送的流体的活塞泵（10），其具有压力产生装置（30）和控制装置（40），所述压力产生装置（30）和所述控制装置（40）共同布置在一个单个的壳体（84）中并且在所述壳体中沿着共同的纵轴线（18）定向。

Cylinder block for hydraulic pump in renewable power generating apparatus

A power generating apparatus of a renewable energy type has a hydraulic radial piston pump driven by a turbine. The pump has one or more cylinder blocks including axially spaced banks of cylinders. The cylinder blocks have low pressure fluid passages which extend radially outwards from the cylinders. High pressure fluid passages comprise a portion which extend axially out from the cylinders, located between pairs of circumferentially adjacent cylinders. High pressure valves are provided intermediate the cylinders and radially outwards of the cylinders. The cylinder blocks have a neutral plane. The benefit of the configuration is that the cylinder blocks are strongly resistant to bending and torsion.

레이디얼 플런저 펌프

레이디얼 플런저 펌프는 하우징과, 펌프 하우징 내에 회전 가능하게 지지된 구동 샤프트와, 편심 캠의 축이 기하학적 중심으로부터 벗어나도록 구동 샤프트에 고정 연결된 원통형 편심 캠과, 하우징 내에 형성된 복수개의 반경 방향 원통형 보어와, 왕복 운동하도록 각각이 관련 원통형 보어 내에 수납되고 편심 캠의 외측 외주를 향해 스프링 편의된 복수개의 반경 방향 플런저를 포함한다. 또한, 편심 캠에 대하여 상대적으로 회전할 수 있도록 편심 캠의 외측 외주에 끼워진 보조 링이 마련된다. 구동 샤프트를 둘러싸면서 하우징 내의 공간을 작동 유체 챔버와 윤활제 챔버로 분할하도록 보조 링과 하우징 사이에 가요성 격벽 부재가 마련된다. 윤활제 챔버는 구동 샤프트 저널의 적당한 윤활과, 구동 샤프트 둘레에 배치된 오일 시일의 양호한 밀봉을 위한 윤활제로 충전된다.

带有节流控制的液压活塞泵

一种泵系统具有一活塞泵。该活塞泵具有一缸体，该缸体具有一入口端口、一出口端口、以及多个缸。该多个缸中的每个缸都通过一入口通道连接到该入口端口上并且通过一出口通道连接到该出口端口上。该活塞泵具有被布置在该多个缸中的多个活塞。一驱动轴驱动在这些缸内的这些活塞。一节流构件独立地节制每个入口通道中的流量。该泵系统具有管理该节流构件的移动的一电动液压致动器。

High pressure pump for fuel injection device in internal combustion engine

FIELD: engines and pumps. SUBSTANCE: invention is related to propulsion engineering, in particular, to fuel equipment of internal combustion engine. Invention makes it possible to increase wear resistance of interacting surfaces in contact area between ring and at least one plunger that at least mediately interacts with it. High pressure pump for fuel injection device in internal combustion engine comprises rotated drive shaft with section arranged eccentrically relative to its axis, on which ring is installed with the possibility of rotation, and at least one pump element, which has plunger put to reciprocal motion mediately by drive shaft via ring, which is at least mediately rests against the ring. Ring is coated by antifriction varnish on at least external surface that is inverted from eccentric section of drive shaft, at least on that section of the surface, on which at least one plunger is at least mediately rests against this ring. EFFECT: increase of wear resistance of interfacing surfaces. 6 cl, 2 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 347 100 (13) C2 (51) ÌÏÊ F02M 41/14 (2006.01) F04B 1/04 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005120649/06, 22.06.2004 (30) Êîíâåíöèîííûé ïðèîðèòåò: 21.08.2003 DE 20313014.6 (73) Ïàòåíòîîáëàäàòåëü(è): ÐÎÁÅÐÒ ÁÎØ ÃÌÁÕ (DE) (43) Äàòà ïóáëèêàöèè çà âêè: 27.09.2007 R U (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 22.06.2004 (72) Àâòîð(û): ÊËÀÉÍÁÅÊÊ Òîìàñ (DE), ÊÎÕ Ìàðêóñ (DE), ÐÈÒÒÌÀÍÍÑÁÅÐÃÅÐ Âîëüôðàì (DE) (45) Îïóáëèêîâàíî: 20.02.2009 Áþë. ¹ 5 2 3 4 7 1 0 0 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 5642988 A, 01.07.1997. US 5937734 A, 17.08.1999. EP 1310577 A, 14.05.2003. US 5462362 A, 31.10.1995. EP 0984161 A, 08.03.2000. SU 390653 UI, 10.08.2004. SU 1574887 A1, 30.06.1990. SU 312867 A1, 01.01.1971. RU 24711 U1, 20.08.2002. SU 1771883 A1, 30.10.1992. 2 3 4 7 1 0 0 R U C 2 C 2 (85) Äàòà ïåðåâîäà çà ...

Positive displacement decompression pump

【課題】装置を大型化することなく加圧の限界値を高くすることができ、且つ液圧制御対象を加減圧可能な新たな容積式加減圧ポンプを提供する。【解決手段】本発明は、容積可変機構５と、第１ポート６１及び第２ポート６２と、弁機構７と、を有するフルード送出部２１〜２７と、３つ以上のフルード送出部２１〜２７が直列接続されて形成されたポンプ流路３と、を備え、各ピストン５１の移動範囲には、容積最大位置Ｐ１と、容積最小位置Ｐ３と、切替位置Ｐ３と、が含まれ、ポンプ流路３は、駆動装置４の駆動により、ピストン５１が切替位置Ｐ２と容積最小位置Ｐ３との間を移動する閉鎖移動工程（Ｐ２−Ｐ３間移動）が、第１出入口３１から第２出入口３２に向けて又は第２出入口３２から第１出入口３１に向けて、フルード送出部２１〜２７間を順番に移っていくように構成されている。【選択図】図２

High efficiency, high pressure pump suitable for remote installations and solar power sources

A pump head has a motor coupler; a motor mount; at least one piston housing; a fluid input; a fluid output; and a reciprocating piston to pump a fluid from fluid input to fluid output. The manifold has fluid input and output bores extending parallel with the reciprocating piston, and from end to end thereof. The motor mount has a mounting flange configured to couple to a motor, and a torsion sleeve extending from the flange. A torsion bolt is coupled with the piston housing. An elastomeric sleeve isolates the torsion bolt from torsion sleeve. The torsion bolt longitudinally compresses and radially expands the elastomeric sleeve toward and against the torsion sleeve. The reciprocating piston, piston housing, a first seal, and a second seal in combination define a fluid collection chamber for fluid that leaks past the first seal. A fluid conduit connects the fluid collection chamber to the fluid input. An over-pressure release valve assembly is coupled on an input with the fluid output from the pump head, and is configured to stay closed until a predetermined maximum pressure is exceeded, and when opened will spill fluid back to at least one of the fluid inlet or a fluid reservoir.

Compact pump with reduced vibration and reduced thermal degradation

A positive displacement reciprocating multi-cylinder pump has a pair of cams and associated bearings and yokes that cooperatively and positively reciprocate the pistons. The fluid flow paths are configured through specially designed intake and outlet manifolds to provide intrinsic cooling of the bearings through specially configured fluid flow paths at distal ends of the pump. An intentional head geometry that is identical for each piston may be readily machined using exterior bores. Each head defines a cylinder, captures both inlet and outlet one-way valves, and provides essential fluid flow paths about the cylinders. All bearings are of the sealed type, and no additional oil baths or the like are required, permitting the pump to be stored, transported, and used in any orientation.

Radial-piston pump with guide discs

FIELD: engines and pumps. SUBSTANCE: gasket made an antifriction material is arranged on the surface of the pump guide disc facing the heads of the pistons and repeating the profile of the disc with a groove. Such insert can be made of fluoroplastic composition of F4K20 under dry friction conditions within a wide temperature range from -250 to +260°C. In addition, there are flats are made on the piston head near projections contacting with seals of the guide discs. EFFECT: increased pump efficiency and expanded list of pumped liquids. 4 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 647 160 C1 (51) МПК F04B 1/04 (2006.01) F04B 1/053 (2006.01) F04B 15/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04B 1/04 (2006.01); F04B 1/0536 (2006.01) (21)(22) Заявка: 2016147581, 06.12.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 14.03.2018 (45) Опубликовано: 14.03.2018 Бюл. № 8 19920997 A1, 09.11.2000. RU 2194189 C2, 10.12.2002. US 2430362 A, 04.11.1947. (54) РАДИАЛЬНО-ПОРШНЕВОЙ НАСОС С НАПРАВЛЯЮЩИМИ ДИСКАМИ (57) Реферат: Изобретение относится к насосостроению, в предназначенной для работы в условиях сухого частности к радиально-поршневым насосам. На трения в широком диапазоне температур от -250 поверхности направляющего диска насоса, до +260°C. Кроме того, на головке поршня вблизи обращенной к головкам поршней, расположена выступов выполнены лыски, контактирующие с прокладка из антифрикционного материала, уплотнениями направляющих дисков. повторяющая профиль диска с канавкой. Такая Техническим результатом является повышение вставка может быть выполнена из кпд насоса и расширение перечня перекачиваемых фторопластовой композиции Ф4К20, жидкостей. 3 з.п. ф-лы, 3 ил. R U 2 6 4 7 1 6 0 (56) Список документов, цитированных в отчете о поиске: DE102008012674 A1, 10.09.2009. DE Стр.: 1 C 1 C 1 Адрес для переписки: 180020, г. Псков, ул. Ижорского Батальона, 40А, ООО"ПРОМГАЗ-ТЕХНОЛОГИЙ", ...

Apparatus with hydraulic machine controller

原动机和多个液压致动器，具有与原动机驱动接合的可旋转的轴并且包括多个工作腔室的液压机，在液压机的一个或多个工作腔室的组和一个或多个液压致动器之间延伸的液压回路，液压机的每个工作腔室包括调节工作腔室和低压歧管之间的液压流体的流动的低压阀和调节工作腔室和高压歧管之间的液压流体的流动的高压阀。液压机构造为响应于需求信号而主动地至少控制该一个或多个工作腔室的组的低压阀，以在工作腔室容积的每个循环上选择每个工作腔室的液压流体的净排量，并且由此选择该一个或多个工作腔室的组的液压流体的净排量，其中，设备还包括控制器，控制器构造为响应于液压回路或一个或多个致动器的测量特性来计算需求信号。

Metal diaphragm vibration damper

提供金属膜片减振器，即使反复施加应力也不容易断裂。金属膜片减振器(1)将气体封入在圆板状的膜片(2)的内部，并且具有中央的变形作用部(23)和外周的外周固定部(20)，其中，变形作用部(23)形成为向膜片(2)的外部弯曲的形状，在变形作用部(23)与外周固定部(20)连接的连接部分形成有向内径侧敞开的折返部(5)，折返部(5)能够在径向上移动。

Radial-piston pump with connecting ring

FIELD: engines and pumps. SUBSTANCE: an insert made of an antifriction material, which follows the profile of the connecting ring, is arranged on the surface of the connecting ring of the pump facing the pistons heads. Such insert can be made of fluoroplastic composition of F4K20 under dry friction conditions within a wide temperature range from -250 to +260°C. EFFECT: increased pump efficiency and expanded list of pumped liquids. 7 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 646 519 C1 (51) МПК F04B 1/04 (2006.01) F04B 1/053 (2006.01) F04B 15/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04B 1/04 (2006.01); F04B 1/0536 (2006.01); F04B 15/08 (2006.01) (21)(22) Заявка: 2016147580, 06.12.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 05.03.2018 (45) Опубликовано: 05.03.2018 Бюл. № 7 5509347 A1, 23.04.1886. DE 19920997 A1, 09.11.2000. US 4977606 A1, 11.12.1990. (54) РАДИАЛЬНО-ПОРШНЕВОЙ НАСОС С СОЕДИНИТЕЛЬНЫМ КОЛЬЦОМ (57) Реферат: Изобретение относится к насосостроению, в фторопластовой композиции Ф4К20, частности к радиально-поршневым насосам. На предназначенной для работы в условиях сухого поверхности соединительного кольца насоса, трения в широком диапазоне температур от -250 обращенной к головкам поршней, расположена до +260°C. Техническим результатом являются прокладка из антифрикционного материала, повышение КПД насоса и расширение перечня повторяющая профиль соединительного кольца. перекачиваемых жидкостей. 6 з.п. ф-лы, 4 ил. Такая вставка может быть выполнена из R U 2 6 4 6 5 1 9 (56) Список документов, цитированных в отчете о поиске: US 5647729 A, 15.07.1997. US Стр.: 1 C 1 C 1 Адрес для переписки: 180020, г. Псков, ул. Ижорского Батальона, 40А, ООО "ПРОМГАЗ-ТЕХНОЛОГИЙ", Самуйлову Александру Борисовичу 2 6 4 6 5 1 9 (73) Патентообладатель(и): Общество с ограниченной ответственностью "ПРОМГАЗ-ТЕХНОЛОГИЙ" (RU) Приоритет(ы): (22) Дата подачи заявки: 06.12.2016 R U 06. ...

High Pressure Pump for Complex Injection Engine

복합 분사 엔진용 고압 펌프가 제공된다. 상기 고압 펌프의 몸체는, 상기 저압 연료 유입구를 통해 유입된 상기 저압 연료를 이송하는 제1 유로(F1); 상기 몸체의 하부에 배치되어, 상기 제1 유로(F1)로부터 이송된 상기 저압 연료를 수용하는 저압 연료 수용실(S2); 상기 저압 연료 수용실(S2)에 수용된 상기 저압 연료를 이송하는 제2 유로(F2); 상기 저압 연료 수용실(S2)의 상부에 배치되고, 개폐동작에 따라 상기 제2 유로를 통해 이송된 상기 저압 연료를 상기 가압부 또는 상기 몸체의 상부에 배치된 상기 댐퍼(523)로 토출하는 유량 제어 밸브(517); 및 상기 댐퍼(523)를 통해 이송되는 상기 저압 연료를 저압 연료 레일로 토출하는 저압 연료 토출구(511)를 포함한다. A high pressure pump for a multiple injection engine is provided. The body of the high-pressure pump includes: a first flow path (F1) for transferring the low-pressure fuel introduced through the low-pressure fuel inlet; A low-pressure fuel storage chamber (S2) disposed at a lower portion of the body and housing the low-pressure fuel transferred from the first flow path (F1); A second flow path (F2) for transferring the low-pressure fuel stored in the low-pressure fuel storage chamber (S2); Pressure fuel, which is disposed in the upper portion of the low-pressure fuel storage chamber (S2) and is delivered through the second flow path in accordance with opening and closing operations, to the damper (523) A control valve 517; And a low-pressure fuel discharge port 511 for discharging the low-pressure fuel conveyed through the damper 523 to the low-pressure fuel rail.

Radial plunger hydraulic device adopting hydraulic control one-way valve for flow distribution and working method

本发明公开了采用液控单向阀配流的径向柱塞液压装置及工作方法，径向柱塞液压装置包括壳体、若干个柱塞组件、一个主轴、与柱塞组件个数相同且一一对应的第一液控单向阀、与柱塞组件个数相同且一一对应的第二液控单向阀和一个配流盘。该径向柱塞液压装置采用液控单向阀配流，提供了一种全新的配流方式，得益于液控单向阀极佳的密封性，液压马达可工作在高压下，且可达到较高的容积效率。该装置不仅可以作为液压马达使用，也可作为液压泵使用，能够用于需要实现功率回收功能的液压系统中。

Pump, in particular piston pump for high or low pressure

泵，特别是用于高压或者低压的活塞泵，用于质量调整或数量调整的内燃机，特别是用于机动车，该泵带有至少一个活塞单元，该活塞单元在中间接入滚轮挺杆或杯式挺杆的条件下可由凸轮轴的至少一个凸轮或者偏心轮控制；其中，该泵构造为带有插接式泵壳体的插接式泵并且与内燃机的凸轮轴的至少一个凸轮或偏心轮或者与与内燃机的构件抗扭连接的凸轮区段作用连接；或者其中，该泵具有泵元件和壳体（5），该壳体带有在其中借助滚动轴承（6、7）或滑动轴承引导的凸轮轴；其中，该壳体（5）固定在内燃机上并且凸轮轴与内燃机转动连接；并且其中，该壳体（5）或者插接式泵壳体具有多个单个制造并组装成结构单元的构件。

Anti-lock Brake System Pump Housing

본 발명은 에이비에스용 펌프 하우징에 관한 것으로, 더욱 상세하게는, 모터수용부, 펌프수용부, 입구솔레노이드밸브수용부, 출구솔레노이드밸브수용부 및 어큐뮬레이터수용부를 포함하는 에이비에스용 펌프 하우징에 있어서, 상기 어큐뮬레이터수용부는, 제 1챔버와, 상기 제 1챔버 상단에 형성되며, 상기 제 1챔버보다 직경이 작게 형성된 제 2챔버와, 상기 제 2챔버와 상기 펌프수용부를 연통시키는 제 1연통포트로 이루어지고, 상기 제 2챔버와 펌프 하우징의 후단에서 형성된 출구솔레노이드밸브수용부를 연통시키는 제 2연통포트가 형성되므로 써, 펌프수용부와 연통되는 제 1연통포트의 유로 가공 작업이 수월하고, 그 크기를 크게 가공할 수 있으며, 제 2챔버로 인해, 출구솔레노이드밸브수용부의 출구측과 연통되도록 하여, 별도의 연통포트를 가공하지 않아도 되므로, 부피를 작게 구성할 수 있고, 무게의 경량화에도 도움이 되는 에이비에스용 펌프 하우징에 관한 것이다. The present invention relates to an ABS pump housing, and more particularly, in an ABS pump housing including a motor accommodating part, a pump accommodating part, an inlet solenoid valve accommodating part, an outlet solenoid valve accommodating part and an accumulator accommodating part, The accumulator accommodation portion includes a first chamber, a second chamber formed at an upper end of the first chamber, and having a diameter smaller than that of the first chamber, and a first communication port communicating the second chamber and the pump accommodation portion. Since the second communication port is formed to communicate the outlet solenoid valve receiving portion formed at the rear end of the second chamber and the pump housing, it is easy to process the flow path of the first communication port communicating with the pump receiving portion, and the size Due to the second chamber, it is possible to communicate with the outlet side of the outlet solenoid valve receiving part, so that a separate communication port is provided. Because you do not have to, it is possible to configure a smaller volume, the present invention relates to a pump housing for the ABS to help even lighter weight.

High pressure pump for internal combustion engine fuel jet pump

本发明涉及用于内燃机的燃料喷射装置的高压泵，具有一个旋转地被驱动的驱动轴(12)，该驱动轴具有一个相对其旋转轴线(13)偏心地构造的轴区段(26)，一个环(28)可转动地支承在该轴区段上，该高压泵还具有至少一个泵元件(32)，该泵元件具有一个可由驱动轴(12)通过该环(28)至少间接地驱动进行往复运动的泵活塞(34)，该泵活塞至少间接地靠触该在环(28)上，其中，所述环(28)至少在其背离轴区段(26)的外表面上的至少一个区域(29)中设有由润滑漆构成的涂层(56)，在该区域中所述至少一个泵活塞(34)至少间接地靠触在该环(28)上。

Labyrinth piston compressor

The labyrinth piston compressor (1) comprises a cylinder (10), a piston (20) located in the cylinder (10), and a piston rod (24), the piston rod (24) extending in a longitudinal direction (L) and being connected to the piston (20), the piston (20) being movable back and forth inside the cylinder (10) in the longitudinal direction (L), the cylinder (10) having a first cylinder cover (11), an inlet valve (90) and an outlet valve (91) being located in the first cylinder cover (11), and the inlet valve (90) and the outlet valve (91) being symmetrical with respect to a plane of symmetry (S) running along the piston rod (24) in the longitudinal direction (L).

A kind of plunger part of high-pressure plunger type hydraulic pump

本发明涉及柱塞式液压泵技术领域，尤其是一种高压柱塞式液压泵的柱塞部件，包括驱动轴，所述驱动轴的端部连接有驱动板，所述驱动板的边缘交替设置有凸出部和凹陷部，所述驱动板的外部环形阵列有输液机构，所述输液机构包括缸体，所述缸体的底部两端分别连接有与之内部连通的进液管和出液管，所述缸体的内部设有沿其内壁滑动的筒体，所述筒体与插杆的一端固定连接，所述筒体的另一端与缸体的内壁之间连接有第三弹簧，所述插杆贯穿缸体端部设置的插孔且端部连接有活动端，本发明稳定性好，且降低配件磨损，提高寿命。

Load balance type radial plunger pump

本发明公开了一种载荷平衡式径向柱塞泵，包括机架、缸体、驱动轴，所述驱动轴的中部连接有椭圆盘转子，椭圆盘转子的外圆周上沿周向设置有椭圆形的凹槽结构；所述凹槽结构连接有柱塞连接件，所述柱塞连接件分别连接有柱塞组件，所述柱塞组件贯穿缸体并在其末端连接有配流阀组件；所述柱塞连接件的下端轴两侧对称安装有第一滚子轴承，所述第一滚子轴承与所述凹槽结构相配合；本柱塞泵通过所述驱动轴带动所述椭圆盘转子同步转动，柱塞行程为椭圆的半长轴与半短轴之差，从而实现恒流量；柱塞组件对称设置的结构，能够保证本柱塞泵工作时驱动轴受力对称，消除径向不平衡力；避免造成较大的径向载荷，降低振动与噪音，减小了磨损，提高寿命。

Pumping system

一种泵系统具有一活塞泵。该活塞泵具有一缸体，该缸体具有一入口端口、一出口端口、以及多个缸。该多个缸中的每个缸都通过一入口通道连接到该入口端口上并且通过一出口通道连接到该出口端口上。该活塞泵具有被布置在该多个缸中的多个活塞。一驱动轴驱动在这些缸内的这些活塞。一节流构件独立地节制每个入口通道中的流量。该泵系统具有管理该节流构件的移动的一电动液压致动器。

Dispersed-hardening martensite stainless steel and a pump with plunger back-and-forth movement, made using this steel

FIELD: metallurgy.SUBSTANCE: invention relates to dispersion-hardening martensite stainless steel used for making parts of pumps with plunger back-and-forth movement. Steel contains, wt %: carbon in amount of 0.08 and 0.18, chromium in amount between 10.50 and 14.00, nickel in amount between 0.65 and 1.15, copper in amount between 0.85 and 1.30, the rest is iron and the primary released phase containing copper.EFFECT: longer service life of manufactured parts of pumps.26 cl, 6 dwg, 3 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 733 603 C2 (51) МПК C22C 38/42 (2006.01) F04B 53/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22C 38/42 (2020.05); F04B 53/16 (2020.05) (21)(22) Заявка: 2017111619, 06.04.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): А. Финкл энд Санс Ко. (US) 05.10.2020 07.04.2016 US 62/319,406; 03.04.2017 US 15/477,764 (43) Дата публикации заявки: 09.10.2018 Бюл. № 28 (56) Список документов, цитированных в отчете о поиске: RU 2383649 C2, 10.03.2010. RU 2379180 C2, 20.01.2010. FR 2700174 A1, 08.07.1994. FR 2008609 A1, 23.01.1970. US 6743305 B2, 01.06.2004. (54) ДИСПЕРСИОННО-ТВЕРДЕЮЩАЯ МАРТЕНСИТНАЯ НЕРЖАВЕЮЩАЯ СТАЛЬ И НАСОС С ВОЗВРАТНО-ПОСТУПАТЕЛЬНЫМ ДВИЖЕНИЕМ ПЛУНЖЕРА, ИЗГОТОВЛЕННЫЙ С ИСПОЛЬЗОВАНИЕМ ДАННОЙ СТАЛИ (57) Реферат: Изобретение относится к области между 10,50 и 14,00, никель в количестве между металлургии, а именно к дисперсионно0,65 и 1,15, медь в количестве между 0,85 и 1,30, твердеющей мартенситной нержавеющей стали, остальное - железо и первичная выделившаяся используемой для изготовления деталей насосов фаза, содержащая медь. Достигается повышение с возвратно-поступательным движением срока службы изготавливаемых деталей насосов. плунжера. Сталь содержит, мас.%: углерод в 3 н. и 23 з.п. ф-лы, 6 ил., 3 табл. количестве между 0,08 и 0,18, хром в количестве R U 2 7 3 3 6 0 3 Адрес для переписки: 129090, Москва, ул. Б. Спасская, ...

Piston pumps for internal combustion engine fuels

구동샤프트(28)에 대한 예정된 각거리에서 각각의 축(22)으로 정렬된 다수의 실린더(21)와; 이 각각의 실린더(21) 내부에서 미끄럼 이동하는 다수의 피스톤(42)을 구비하는 펌프(15)로, 각 피스톤(42)의 내부 방사상 끝단이 구동샤프트(28)의 편심부(35)상에서 회전하는 캠(39)의 각 편평부(40)와 체결하는 패드(43)로 고정되고; 시이저(seizure)에 대한 안전성이 확보되며, 각각의 패드(43)는 중공을 구비하며, 이 중공 내에 캠(39)과 각 편평부(40)를 결합하는 자체-윤활재의 적어도 하나의 층(70)을 구비하는 접촉부(66)가 결합된다.

Fuel pluger pump for internal combustion ingine

本发明公开了一种柱塞泵，包括多个缸及柱塞；柱塞内端固定于衬垫；驱动轴与偏心部分为一体；偏心部分在其内转动的环形凸轮包括多个平面部分，衬垫面对一平面部分并由弹簧偏压；具有封闭腔的壳体，凸轮和衬垫安装其中，燃油供入此腔以润滑轴和凸轮，衬垫形成有环形孔腔，盘形底板包括覆盖一层包括聚四氟乙烯和铅的自润滑材料的金属材料基体，底板通过基体过盈配装在孔腔内使该层面对平面部分，该层通过弹簧与平面部分弹性接触；轴和偏心部分包括滑动轴承，滑动轴承包括金属基体和一层自润滑材料。

Control of multiple pump units for hydraulic fracturing to ensure smooth correction of total flow rate

FIELD: engines and pumps.SUBSTANCE: changing the total pumping speed of the plurality of pumping units by adjusting the individual pumping rates of the pumping units, wherein each temporary drop or peak of a separate pumping rate of one of the pumping units is automatically compensated by a given time adjustment of the separate pumping rate of the other one or more of the pumping units, in order to thereby reduce the effect of temporary decay or peak on the total pumping rate of pumping units.EFFECT: disclosed is control of multiple pump units for hydraulic fracturing to ensure smooth correction of total flow rate.18 cl, 11 dwg, 3 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 768 132 C2 (51) МПК F04B 41/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04B 41/06 (2022.01) (21)(22) Заявка: 2020127743, 23.01.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 23.03.2022 (73) Патентообладатель(и): ШЛЮМБЕРГЕР ТЕКНОЛОДЖИ Б.В. (NL) 23.01.2018 US 62/620,663 (43) Дата публикации заявки: 24.02.2022 Бюл. № 6 (45) Опубликовано: 23.03.2022 Бюл. № 9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.08.2020 (56) Список документов, цитированных в отчете о поиске: US 20160169221 A1, 16.06.2016. WO 2017106865 A1, 22.06.2017. RU 2343313 C1, 10.01.2009. RU 2140569 C1, 27.10.1999. 2 7 6 8 1 3 2 Приоритет(ы): (30) Конвенционный приоритет: R U 23.01.2019 (72) Автор(ы): БАГУЛАЯН, Амал (US), МУ, Нан (US), МЭТТЬЮЗ, Джеймс (US), МИ, Бао (US), ТЭЙЛОР, Александер, Таннер (US), КАДЖИТА, Маркос Сугуру (US) US 2019/014651 (23.01.2019) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 6 8 1 3 2 WO 2019/147603 (01.08.2019) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) УПРАВЛЕНИЕ МНОЖЕСТВОМ НАСОСНЫХ УСТАНОВОК ДЛЯ ГИДРОРАЗРЫВА ПЛАСТА ДЛЯ ОБЕСПЕЧЕНИЯ ПЛАВНОЙ КОРРЕКЦИИ ОБЩЕГО РАСХОДА (57) Реферат: Изменение совокупной ...

high pressure fuel pump

본 발명은 펌프 하우징(46), 상기 펌프 하우징(46) 내의 수용 공간(52), 상기 수용 공간(52) 내에 배치되며 2개의 다이어프램(58a, 58b)을 갖는 다이어프램 셀(56) 형태의 압력 맥동 댐퍼(44), 및 상기 수용 공간(52)에 다이어프램 셀(56)을 홀딩하기 위한 홀딩 장치(62)를 포함하는 고압 연표 펌프(28)에 관한 것이다. 본 발명에 따르면, 홀딩 장치(62)는 축 방향(70)과 반경 방향(72) 모두에서 펌프 하우징(46)에 견고하게 연결되는, 특히 축 방향(70)과 반경 방향(72) 모두에서, 수용 공간(52)을 한정하는 내부 측면(92)에 고정되는 연결 섹션(66)을 포함한다.

Radial plunger pump control method and device and electronic terminal

本申请提供了一种径向柱塞泵的控制方法、装置以及电子终端，涉及液压装置应用技术领域，可以通过需要的实际流量确定对应的标准柱塞模式，进而，根据标准柱塞模式实现与实际流量对应的排量的精准输出，相对于现有的根据改变定子偏心距调节排量，本发明实现了对排量的无级调节，能够缓解排量调节的精确度较低的技术问题。该方法包括：当接收到对所述径向柱塞泵操作的档位命令时，计算需要的实际流量；确定与所述实际流量匹配的标准柱塞模式，其中，所述标准柱塞模式中包括通过所述角度传感器标记的所述转子相对所述定子的转动角度范围；根据所述标准柱塞模式内的所述转动角度范围，控制电磁比例阀及开关阀。

Piston pump with at least one stepped piston element

Pump housing of a motor vehicle hydraulic unit with at least one main cylinder connection opening

하나 이상의 측면(18), 하나 이상의 메인 실린더 연결부 개구(44; 46), 하나 이상의 펌프 부재 개구(28, 30), 및 상기 하나 이상의 메인 실린더 연결부 개구(44; 46)를 상기 하나 이상의 펌프 부재 개구(28; 30)에 연결하며 블라인드 홀로서 펌프 하우징(56) 내로 형성되는 연결 라인(58; 60)을 포함하는 자동차 유압 장치의 펌프 하우징(56)에 있어서, 본 발명에 따라 상기 연결 라인(58; 60)의 블라인드 홀은 하나 이상의 측면(18)으로부터 하나 이상의 펌프 부재 개구(28, 30)를 통해 그리고 후속해서 메인 실린더 연결부 개구(44, 46) 내에까지 연장된다. The method as claimed in any one of the preceding claims, wherein one or more side faces (18), one or more main cylinder connection openings (44; 46), one or more pump member openings (28, 30), and the one or more main cylinder connection openings And a connecting line (58; 60) connected to the pump housing (28; 30) and formed into the pump housing (56) as a blind hole, the pump housing (56) 60 extend from one or more sides 18 through one or more pump member openings 28, 30 and subsequently into main cylinder connection openings 44, 46.

Method for determining the absorption volume of a radial piston machine

Die Erfindung betrifft ein Verfahren zur Bestimmung des Schluckvolumens einer Radialkolbenmaschine (1) mit verstellbarer Exzentrizität e, mit schwenkbar angeordneten Zylindern (2) und mit einer einen Exzenter (5) antreibenden Antriebswelle, wobei der Drehwinkel der Antriebswelle mit α und der Schwenkwinkel der Zylinder (2) mit β bezeichnet sind. Es wird vorgeschlagen, dass der Schwenkwinkel β gemessen und aus den Messwerten für β die Exzentrizität (e) und daraus das Schluckvolumen (v) berechnet werden. The invention relates to a method for determining the displacement of a radial piston machine (1) with adjustable eccentricity e, with pivotably arranged cylinders (2) and with a drive shaft driving an eccentric (5), the angle of rotation of the drive shaft being α and the pivoting angle of the cylinders ( 2) are denoted by β. It is proposed that the swivel angle β be measured and the eccentricity (e) and from this the displacement (v) calculated from the measured values for β.

Method for determining the displacement of a radial piston machine

The invention relates to a method for determining the displacement of a radial piston machine (1) having adjustable eccentricity e, having cylinders (2) arranged in a pivoting manner and having a drive shaft driving an eccentric (5), wherein the rotation angle of the drive shaft is designated by α and the pivoting angle of the cylinder (2) is designated by β. According to the invention, the pivoting angle β is measured and from the measured values for β the eccentricity and hence the displacement are calculated.

Method for determining the displacement of a radial piston machine

A method of determining displacement of a radial piston machine ( 1 ) having adjustable eccentricity (e). The radial piston machine ( 1 ) includes cylinders ( 2 ) arranged in a pivoting manner and a drive shaft that drives an eccentric ( 5 ). The rotation angle of the drive shaft is labeled as α and the pivoting angle of the cylinders ( 2 ) is labeled β. The pivoting angle β is measured and from the measured values for the pivoting angle β, the eccentricity (e) and hence the displacement (v) are calculated.

Method for determining the displacement of a radial piston machine

本发明涉及一种用于确定径向柱塞式机械（1）的排量的方法，所述具备：可调节的偏心率e、能枢转地布置的缸（2）以及对偏心轮（5）加以驱动的驱动轴，其中，所述驱动轴的转角用α来标示，并且所述缸（2）的枢转角用β来标示。提出的是：测量枢转角β，并且由β的测量值算出偏心率（e），并且由此算出排量（v）。

Method for determining displacement of a radial piston machine

本发明涉及一种用于确定径向柱塞式机械（1）的排量的方法，所述具备：可调节的偏心率e、能枢转地布置的缸（2）以及对偏心轮（5）加以驱动的驱动轴，其中，所述驱动轴的转角用α来标示，并且所述缸（2）的枢转角用β来标示。提出的是：测量枢转角β，并且由β的测量值算出偏心率（e），并且由此算出排量（v）。

Fluid-working machine with multi-lobe ring cam

一种用于可再生能源产生装置的流体工作机器，该流体工作机器包括一个环形凸轮和多个工作室，该环形凸轮具有围绕该环形凸轮的旋转轴线延伸的一个环形的工作表面，该环形的工作表面限定了多个波形，每个工作室具有一个活塞，每个活塞与该环形凸轮工作表面处于运行性接合，该环形凸轮与这些工作室被安装为彼此相对旋转，工作室容积周期由此与该环形凸轮相对于这些工作室的旋转相耦合，其特征在于该环形凸轮工作表面的这些单独的波形具有一种不对称的轮廓。

Multi-piston pump

本发明涉及一种多柱塞泵，它包括壳体(2)、带有多个用于给第一压力回路(I)供压的柱塞泵(3a、3b、3c)的第一泵单元(3)、带有多个用于给第二压力回路(II)供压的柱塞泵(4a、4b、4c)的第二泵单元(4)、驱动装置以及带有第一偏心轮(5)和第二偏心轮(6)的偏心轮单元，其中第一和第二偏心轮(5、6)驱动多个的柱塞泵(3a、3b、3c；4a、4b、4c)，并且其中第一和第二泵单元(3、4)分别具有可以由第一偏心轮(5)驱动的至少一个柱塞泵(3a、3b；4c)和可以由第二偏心轮(6)驱动的至少一个柱塞泵(3c；4a、4b)，其特征在于，由第一偏心轮(5)所驱动的柱塞泵(3a、3b；4c)被设置成分别平行于由第二偏心轮(6)所驱动的柱塞泵(4a、4b；3c)。

Controller for hydraulic pump

FIELD: machine building. SUBSTANCE: invention relates to controller for the machine, to hydraulic circuit controller and design, which operation is based on the fluid medium. Hydraulic pump 6 comprises housing 20, first and second inlet members 100a, 100b, first and second outlet members 102a, 102b. Crankshaft 4 passes inside the housing 20 and comprises axially shifted first and second cams 62, 64. “Piston-cylinder” assemblies 30, 32 first and second groups are located in the housing 20. Each of said groups 30, 32 comprises a number of “piston-cylinder” assemblies comprising working chamber with the cyclically variable volume and connected to crankshaft 4 with possibility of the motion transmission. One or more electronically controlled valves 40 connected to the first and second groups 30, 32. Controller 70 is configured to the said electronically controlled valves 40 opening and / or closing active control in each of the working chamber volume change, in order to control the fluid medium actual displacement using the first and second groups 30, 32. At least the first group 30 comprises first “piston-cylinder” assembly is coupled to the first cam 62 with possibility of motion transmitting. Second “piston-cylinder” assembly is coupled to the second cam 64 with possibility of motion transmitting. First group is configured to receive the working fluid medium from the first inlet member 100a and the working fluid medium discharge to the first outlet member 102a and the second group is configured to receive the working fluid medium from the second inlet member 100b and the working fluid medium discharge to the second outlet member 102b. EFFECT: reducing the intended for use in vehicles pumps weight and size. 13 cl, 16 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 657 379 C1 (51) МПК F04B 1/06 (2006.01) F04B 49/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04B 1/06 (2006.01); F04B 49/22 (2006.01) (21)(22) ...