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| Number | Title | Issue Date |
| 8151689 | Radial piston machine There is disclosed a radial piston machine comprising a cylinder block having at least one bore in which a piston supported on an eccentric disk is movably guided via roll bodies, wherein at least one hydrostatic relieving field is provided between the piston and th... | 04/10/2012 |
| 8122811 | Fuel injection pump and method for assembling the same A housing has a cylinder and a compression chamber. A plunger is slidable in the cylinder and configured to pressurize fuel in the compression chamber. A cam is eccentric with respect to a shaft center axis of a camshaft and integrally rotatable with the camshaft. A... | 02/28/2012 |
| 7762176 | Radial piston pump with a roller plunger A radial piston pump has a pump housing (1) and at least one pump unit (2) with a pump piston (3) and a cylinder (4) wherein the pump piston (3) can be mounted such that it can be moved backwards and forth, wherein the pump unit ( | 07/27/2010 |
| 7637202 | Hydraulic motor/pump A hydraulic machine which can exchange hydraulic fluid pressure with rotational motion of an input/output means, having a radial arrangement of a plurality of hydraulic piston and cylinder assemblies about a crankshaft, the hydraulic cylinder and piston assemblies b... | 12/29/2009 |
| 7526994 | High precision hydraulic synchronous and proportional flow dividing and flow collecting apparatus A high precision hydraulic synchronous and proportional flow dividing and flow collecting apparatus comprises two hydraulic motors having the same displacement and their crankshafts be connected into one crankshaft. The two hydraulic motors have a common oil inlet p... | 05/05/2009 |
| 7441492 | Eccentric drive mechanism for volumetric pumps or motors Drive mechanism having stroke member (HG) fixed to shaft (W) of a mechanism having eccentric bearing (HL) which connects stroke member (HG) to coupling member (KG) connected by transverse bearing (QL) to pressure member (DG). Included is pressure source (DQ) for flu... | 10/28/2008 |
| 7415920 | Radial piston pump A radial piston pump for generation of high fuel pressures in fuel injection systems comprises a pump housing, a pump shaft and at least one cylinder insert, arranged radially to the pump shaft. A cylinder chamber is located within the cylinder insert in which a pis... | 08/26/2008 |
| 7384246 | Pump element and piston pump for generating high fuel pressure A pump element and a piston pump for generating high fuel pressure are proposed, in which tilting of the piston base relative to a drive shaft is effectively suppressed, so that the service life of the high-pressure fuel pump is increased. ... | 06/10/2008 |
| 7334515 | Roller bearing and pump including same A roller bearing including a plurality of rollers which are provided between an outer circumferential surface of an inner member and an inner circumferential surface of an outer member; and a substantially cylindrical roller holder which has a plurality of pockets h... | 02/26/2008 |
| 7328647 | Hydraulic device The invention concerns a hydraulic device with a housing and a rotor which can rotate in the housing and has fixedly mounted pistons. Around the piston there are drum sleeves which each, together with a piston, form a chamber of variable volume and which are support... | 02/12/2008 |
| 7322271 | Rotary radial piston machine A rotary displacement machine (10) with radial pistons (19), includes a bearing (29) having a rotating thrust ring (28) and a stationary outer ring (30), with bearing rollers (31) therebetween. The thrust ring (28) in... | 01/29/2008 |
| 7313998 | Motor/pump unit, particularly for anti-skid vehicle brake systems The present invention relates to a motor-pump unit for slip-controlled vehicle brake systems, including an accommodating member for hydraulically active elements comprising at least one working piston, which is arranged and guided in the accommodating member so as t... | 01/01/2008 |
| 7311087 | Fuel pump with a guided tappet assembly and methods for guiding and assembly A fuel pump for an internal combustion engine including a fuel pump housing, a cylindrical bore having a central axis and being defined by a bore wall surface, a receiving hole formed in the housing, and a tappet assembly received in the cylinder bore. The tappet as... | 12/25/2007 |
| 7308849 | High-pressure pump, in particular for a fuel injection device of an internal combustion engine A high-pressure pump has at least one pump element including a pump piston defining a work chamber and driven at least indirectly by a drive shaft in a reciprocating motion, counter to the force of a restoring spring. The pump piston is braced on the drive shaft at ... | 12/18/2007 |
| 7293495 | Motor-pump unit The invention relates to a motor-pump unit for a motor vehicle brake system, comprising a motor and a pump which is provided with a shaft that is driven by said motor, with the shaft end being rotatably mounted by means of at least one bearing in an accommodating me... | 11/13/2007 |
| 7278348 | High-pressure pump for a fuel injection system of an internal combustion engine A high-pressure pump having a drive shaft and at least one pump element including a pump piston driven in a reciprocating motion by the drive shaft. A ring on which the pump piston is braced via a support element is rotatably supported on a portion of the drive shaf... | 10/09/2007 |
| 7273003 | Plunger pump A plunger pump, includes: a plunger pump unit including a pump chamber and a plunger for pressing a hydraulic fluid in the pump chamber to perform a discharging operation of the hydraulic fluid; a motor; and a cam portion driven by the motor to rotate and press the ... | 09/25/2007 |
| 7273004 | Reciprocating machine The radial piston or reciprocating engine (1) has annularly juxtaposed, radially directed piston-cylinder units (2, 3). The outward stroke of the pistons (2) is controlled by the cam (11) of a common eccentric shaft (12), whereas t... | 09/25/2007 |
| 7270047 | Fuel injection pump In a fuel injection pump, a tappet is provided on an end thereof on a side of a cam ring with a hollow. Force acting on the tappet from a plunger due to fuel pressure is dispersed to a sliding contact surface outside the hollow so that contact face pressure between ... | 09/18/2007 |
| 7267042 | Hydraulic motor with telescopic propulsion members retained sealingly against associated contact surfaces by internal resilient means Hydraulic motor with propulsion members (10) positioned between a cam (3) associated with a shaft (2) and a reaction element (1b), said propulsion members (10) consisting of two elements (11,12), i.e. an internal elem... | 09/11/2007 |
| 7249556 | Compressor with fortified piston channel A compressor is disclosed generally comprising a cylinder head mounted to a cylinder block having a cooling chamber and a piston channel via a bolt. A piston is disposed in the piston channel and has a contact portion that contacts the channel wall, which is integra... | 07/31/2007 |
| 7244112 | Pump having a removable cover A pump includes a main body, a removable cover, an urging plate, an elastic member, and a control knob. Thus, the removable cover is locked on and unlocked from the main body easily, rapidly and conveniently by rotation of the control knob, thereby facilitating the ... | 07/17/2007 |
| 7243595 | Piston compressor The invention concerns a piston compressor with a piston, which is connected with a crank pin of a drive shaft via a connecting rod having a longitudinal channel. It is endeavored to make the manufacturing of a piston compressor cost effective. For this purpose, it ... | 07/17/2007 |
| 7225721 | Hydraulic motor The motor comprises a cam and a cylinder block mounted to rotate one relative to the other. The cam comprises a plurality of cam lobes and the cylinder block has a plurality of cylinders slidably receiving pistons that are suitable for co-operating with the cam. The... | 06/05/2007 |
| 7216579 | Variable flow control devices, related applications, and related methods Devices for adjustably controlling a flow of fluid through a common passage and through first and second auxiliary passages are disclosed. The flow control devices may be used for controlling the steering of a vehicle having independently controlled driven structure... | 05/15/2007 |
| 7201566 | Reciprocating-piston machine with a joint arrangement In a reciprocating-piston machine, in particular a refrigerant compressor for a motor vehicle air-conditioning system, including a machine shaft, a plurality of pistons are arranged, at the same distance from the machine shaft, on a cylinder envelope defined by the ... | 04/10/2007 |
| 7185579 | Hydraulic radial piston motor A hydraulic motor having radial pistons, and comprising a cam, a cylinder block and a distributor. The cylinders of the cylinder block are connected to communication orifices (32A) situated in a communication face of the cylinder block, while the distributor ... | 03/06/2007 |
| 7168929 | Pump aggregate for a hydraulic vehicle braking system A pump unit for a hydraulic vehicle brake system with traction control has an electric motor driving a radial piston pump. A rotor shaft of the pump unit has a hollow shaft with two standardized, hardened cylindrical pins that are press-fitted into the ends of the h... | 01/30/2007 |
| 7152518 | Structure of fuel injection pump for extending service life An improved wear resisting structure of a fuel injection pump is provided. The fuel injection pump has a plunger reciprocating to pressurize fuel within a compression chamber and a cam mechanism installed on a torque input shaft. The cam mechanism revolves following... | 12/26/2006 |
| 7118350 | Radial piston pump The invention relates to a radial piston pump unit for a high pressure injection system with a pump housing in which a driveshaft with an eccentric section is mounted. A reciprocating ring sits on the above section and drives at least one spring-loaded piston which ... | 10/10/2006 |
| 7108491 | High pressure pump A piston (6) of a piston pump unit (2), which can be displaced in a translatory manner, is guided in a cylinder bore (7). The piston (6) is driven by a crank drive (13) comprising an eccentric element (15) which is arranged ... | 09/19/2006 |
| 7086324 | Surfaces of the polygon or piston base stroke disc of injection pumps and processes for their manufacture The invention relates to the surfaces of the polygon (2) and/or the plunger foot plate (3) of a high-pressure pump for a diesel motor, at least one of the surfaces having cavities at least in the contact area between the polygon (2) and the plun... | 08/08/2006 |
| 7083395 | Pump system for pumping liquefied gases Under one aspect of the present invention, a liquefied gas pump assembly is coupleable to a source of liquefied gas. A cooling assembly is positioned generally adjacent to a pump module. The cooling assembly has a converging pump-head-receiving aperture, a fluid inl... | 08/01/2006 |
| 7040872 | Rotary fluid machinery Pistons (41) are slidably received in a plurality of cylinders (39) disposed radially in a rotor (31), and a plurality of vanes (42) cooperating with the pistons (41) are disposed radially in the rotor (31), so that a vane c... | 05/09/2006 |
| 7024980 | High-pressure fuel pump A high-pressure fuel pump of a simple construction is capable of distributing the position of contact between a tappet and a cam so as to improve durability of the tappet without causing seizure of a piston. A cylinder is arranged in a housing, and the piston is rec... | 04/11/2006 |
| 7025044 | Pump assembly and method A pump assembly includes a high-pressure pump that flows pressurized working fluid in a fuel injection system of a diesel engine. The assembly includes a pilot-operated inlet throttle valve that receives a flow of low-pressure fluid from a feed pump and controls the... | 04/11/2006 |
| 7011012 | Fluid pump A high-pressure fuel pump for internal combustion engines with direct injection includes a housing with a drive chamber in the housing and an eccentric shaft disposed in the drive chamber. A pumping element can be set into a reciprocating motion via the eccentric sh... | 03/14/2006 |
| 6991438 | Radial piston pump with piston rod elements in rolling contact with the pump pistons In a piston pump for providing high-pressure fuel in a common-rail fuel injection system including a camshaft (2), which is mounted rotatably in a pump housing (1) and which has at least one eccentric cam 93) for operating a pump piston (4, 1... | 01/31/2006 |
| 6978713 | Hydraulic radial piston motor A hydraulic motor having radial pistons, and comprising a cam, a distributor, and a cylinder block whose cylinders are connected to communication orifices situated in a communication face of the cylinder block. The distributor has a distribution face in which distri... | 12/27/2005 |
| 6973868 | Dry-running piston compressor (crankshaft drive lubrication) The invention relates to a dry-running piston compressor, in particular for rail vehicles. Said compressor comprises a crankcase (3) for a crankshaft (15) that is rotatably mounted in said crankcase, the latter being provided with at least one pot-type... | 12/13/2005 |
