Patents in subclass Pumps/Biasing Means Effects Induction Stroke Of Abutment Driven, Vacuum Producing Pumping Member
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07367788 | Pump for antilock braking system in vehicle A pump including a main body having a piston provided in a portion of the main body, the piston being configured to reciprocate linearly. A piston spring may be provided within the main body and configured to bias the piston toward an end... |
05/06/2008 |
| 07364410 | Pressure storage structure for use in air A pressure storage structure for use in air is disclosed. The structure has a main body characterized in that the main body has been secured and the main body includes a plurality of air chambers, each chamber has an open end, and the... |
04/29/2008 |
| 07318539 | Pump drive unit for battery operated fluid dispensers A battery operated, handheld fluid dispenser comprises a supply container having a body portion and a narrow neck extending upwardly therefrom. A pump and discharge unit is mounted on the upper end of the neck and comprises a pump... |
01/15/2008 |
| 07314353 | Pump assembly for transporting a cooling fluid A pump assembly includes a cam member arranged to rotate about an axis, and a piston pump having a cylinder body with a biased piston drivingly displaceable within the cylinder body and engageable with the cam member such that rotation of... |
01/01/2008 |
| 07311087 | 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... |
12/25/2007 |
| 07278835 | Piston pump A piston pump for brake systems employs a pulsation-smoothing device that functions especially well in the region of the outlet valve. As a result, substantially less noise occurs, and the durability of the piston pump is substantially... |
10/09/2007 |
| 07273036 | High-pressure fuel pump with a ball valve in the low-pressure inlet A high-pressure a radial piston fuel pump in which the intake valves are embodied as ball valves, which has an advantageous effect on the efficiency of the high-pressure fuel pump. Moreover, the production and assembly of the... |
09/25/2007 |
| 07114928 | High-pressure fuel pump and assembly structure of high-pressure pump A high pressure pump for decreasing an initial axial force of a clamping bolt and preventing distortion of a sealing surface and a cylinder form. The high pressure pump has an intermediate member including a cylinder body. The cylinder... |
10/03/2006 |
| 07108491 | 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 on a drive... |
09/19/2006 |
| 07048521 | High pressure fuel supply pump with an intake valve member and a discharge valve member aligned along a plunger axis In a high pressure fuel supply pump, a housing is provided with a through-hole having a step. A plunger is slidably accommodated in the through-hole on an axial end side thereof. An intake valve member is positioned in the through-hole on... |
05/23/2006 |
| 07033149 | Medium pump adapted for ease of disassembly and assembly A medium pump for a motor includes a pump case with a pump cylinder and a pump piston positioned displacaebly in the pump cylinder in the direction of a pump axle. The pump piston rotates about the pump axle by running off an oblique... |
04/25/2006 |
| 07021911 | Reverse-ported pump A pump used in vehicle controlled braking systems provides a reverse direction of flow through a cylinder bore of the pump and utilizes an inlet check valve located outside of the piston at the end of the cylinder bore opposite the... |
04/04/2006 |
| 07018181 | Swashplate pump A piston pump assembly with a rotatingly driven swashplate in driving relationship with a rocker arm and piston engaged with one end of the rocker arm. A spring urges the rocker arm and piston into contact with an annular ring carried by... |
03/28/2006 |
| 07008198 | Cam operated pump having lost motion shuttle A peristaltic piston pump driven by a dedicated pump cam disposed on a camshaft of an engine. A plurality of valve-opening cams are disposed along the camshaft. The pump cam has a plurality of lobes equal in number to the number of valve... |
03/07/2006 |
| 07004733 | Piston pump A piston pump for brake systems the region of the outlet valve is provided with a pressure chamber, an opposing chamber, and a flexible wall that divides the pressure chamber from the opposing chamber. The flexible wall has an elastically... |
02/28/2006 |
| 07004358 | Dispenser A dispenser has a seal disk (30), a valve member (40), a plunger guide block (50), a motor (3), which rotates a cam-follower guide block (60), and an end cam (5). The seal disk (30) has communication holes (31), (32) and a sliding surface... |
02/28/2006 |
| 06991438 | 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... |
01/31/2006 |
| 06978769 | Method of controlling the injection of fuel into a combustion chamber and a fuel injection device for performing said method A method of controlling the fuel injection to a combustion chamber (4), comprises the steps of: supplying fuel to a pump (2), which has a piston (7) reciprocating in the a cylinder (6), pressurizing the fuel by applying a force onto the... |
12/27/2005 |
| 06895992 | Fuel pump for inter-cylinder direct fuel injection apparatus Disclosed herein is a fuel pump for an inter-cylinder direct fuel injection apparatus, in which occurrence of corrosion and attrition caused by cavitation or erosion can be suppressed, their resistance against the environment can be... |
05/24/2005 |
| 06884045 | Hydraulically powered diaphragm pump with pretensioned diaphragm A hydraulically driven diaphragm pump with a diaphragm clamped at its edge between a pump body and a pump cover separating a delivery chamber from a hydraulic chamber and pretensioned in the direction of its intake stroke by spring force.... |
04/26/2005 |
| 06866489 | Piston pump The present invention related to a piston pump, in particular for controllable brake systems such as ABS or ESP, wherein a working chamber of the pump in front of a piston is delimited by a pressure valve, and a resetting spring with its... |
03/15/2005 |
| 6848429 | Fuel injection pump In a fuel injection pump, a helical gear is attached to an end of a camshaft and rotatable with the camshaft. The camshaft is biased in one axial direction thereof by a driving force that the helical gear receives from an engine... |
02/01/2005 |
| 06848429 | Fuel injection pump In a fuel injection pump, a helical gear is attached to an end of a camshaft and rotatable with the camshaft. The camshaft is biased in one axial direction thereof by a driving force that the helical gear receives from an engine... |
02/01/2005 |
| 06843645 | Cooling system for a magnetic pump A magnet pump includes a synthetic resin casing, divided into a front casing and a rear casing and configured to internally form an impeller housing chamber and a magnet can housing chamber contiguous thereto, having an inlet and an... |
01/18/2005 |
| 06837694 | Hydraulic pump unit with orifice plate for vehicle brake control system A hydraulic pump unit for vehicle brake control system comprising a pump housing, a cylinder received in a receiving hole formed in the pump housing. The cylinder has a bottom portion and is provided at the bottom portion with an outlet... |
01/04/2005 |
| 06808086 | Paste ejection apparatus In a seal mechanism which constitutes a port switching portion in a pump mechanism of a paste ejection apparatus that ejects paste, and which prevents leakage of the paste from a seal portion between a plunger block rotating with a... |
10/26/2004 |
| 06799954 | Tappet turning-prevention structure for fuel supply apparatus A tappet turning prevention structure for a fuel supply apparatus includes a piston defining a fuel pressurizing chamber within the housing. A tappet disposed at one end of the piston has accommodated in it a roller driven by a cam of an... |
10/05/2004 |
| 06764285 | Hydraulic pump unit The invention relates to a hydraulic pump unit having a plurality of pump elements, disposed in one plane, each of which has one pump cylinder and one pump piston longitudinally displaceable in the pump cylinder, and whose longitudinal... |
07/20/2004 |
| 06764286 | Piston pump with pump inlet check valve A piston pump comprises cylinder attached within a cavity of a pump housing. An outlet check valve seat is defined about an outlet of the cylinder. A piston is slidably received in a bore of the cylinder and has a first passageway formed... |
07/20/2004 |
| 06726459 | Variable injection rate high pressure fuel pump A high pressure fuel pump having a variable fuel injection rate, including a pump body, a pump cylinder formed in the pump body and a piston reciprocable within the pump cylinder, which defines a pressurization chamber. The pump piston... |
04/27/2004 |
| 06722864 | Fuel injection pump In a fuel injection pump, fuel pressurized by a feed pump is supplied to an accommodation chamber via a communication path having an orifice. An end of the communication chamber on a side of the accommodation chamber is positioned to face... |
04/20/2004 |
| 06676389 | Piston pump for increasing pressure, comprising a transfer piston and a pressure-control piston The invention relates to a piston pump for increasing pressure for liquids, in particular for the camshaft phase adjustment of reciprocating internal combustion engines, said piston pump advantageously being integrated into the housing of... |
01/13/2004 |
| 06655933 | CAM operated fuel pump with split function follower springs In order to provide a fuel pump in which a piston spring arrangement can be made of inexpensive material, knocking noises of a piston are reduced, and components related to the piston are protected against breakdown, a piston-following... |
12/02/2003 |
| 06652245 | Piston pump for hydraulic vehicle brake system The invention relates to a piston pump for a hydraulic, slip-controlled vehicle brake system. The piston pump has a piston, which is inserted with a part of its length into a sleeve. A tubular filter that encompasses the piston is... |
11/25/2003 |
| 06648614 | Piston pump The present invention relates to a piston pump, which is in particular appropriate for the pressure fluid delivery in electronically controlled brake systems, including a housing, a suction valve, a pressure valve, and a pump piston that... |
11/18/2003 |
| 06589032 | Pump and pump piston assembly A pump and a pump piston assembly. The pump piston assembly includes a pump piston, a pump check valve, and a spring. The pump piston has a piston bore extending from a first piston end toward a second piston end. The pump check valve is... |
07/08/2003 |
| 06579073 | Motor-pump assembly The present invention relates to a motor-and-pump assembly including an electric motor and a piston pump, in particular for slip-controlled brake systems of automotive vehicles, wherein pistons of the pump are adapted to be driven by way... |
06/17/2003 |
| 06530759 | Reciprocating plunger pump with seal mounting support A high pressure fuel pump has a plunger that extends through a cylinder and is reciprocally located in a pressurizing chamber. The plunger is reciprocated by a lifter and changes the volume of the pressurizing chamber to pressurize fuel... |
03/11/2003 |
| 06514055 | Piston pump having a hollow piston The invention relates to a piston pump for a slip-controlled hydraulic vehicle brake system. For the sake of a short structural length of the piston pump, piston of the piston pump is a hollow piston, whose interior forms a positive... |
02/04/2003 |
| 06514056 | Piston pump A piston pump for a slip-controlled, hydraulic brake system of a vehicle. A hollow piston is provided with an inner piston seal that has a sealing lip. During an upward reciprocating motion of the piston, fluid can flow past the sealing... |
02/04/2003 |
| 06506033 | Miniature pump with ball-plate drive A miniature pump equipped with: a pump chamber communicated with a suction port by way of a check valve and communicated with a discharge port by way of another check valve; a driving portion for performing a pump function by increasing... |
01/14/2003 |
| 06499962 | Bearing arrangement for a swash plate pump A swash-plate-end bearing for the motor shaft in a high pressure cleaning appliance which includes a motor and a reciprocating pump driven thereby, wherein the pistons of said pump rest resiliently on a swash plate driven by the motor... |
12/31/2002 |
| 06499974 | Piston pump A piston pump having a piston axially movable against the force of a spring within an operating chamber connected via check valves to an operating cylinder and a hydraulic medium supply. A section of the piston that extends into the... |
12/31/2002 |
| 06474963 | Piston pump having a hollow piston The invention relates to a piston pump (10) for a hydraulic slip-controlled vehicle brake system. In order to reduce a structural length of the piston pump (10), the invention proposes embodying the piston (16) of the piston pump (10) as... |
11/05/2002 |
| 06461117 | Reversible volume oil pump A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the... |
10/08/2002 |
| 06457956 | Piston pump The invention relates to a piston pump for a slip-controlled hydraulic vehicle brake system. To make a piston of the piston pump easy and inexpensive to manufacture, the invention proposes that the piston be comprised of a sleeve-like... |
10/01/2002 |
| 06450788 | Piston pump for high-pressure fuel delivery Disclosed is a piston pump having a pump housing with a cylinder head comprised of a first plate and a second plate. The plates which rest against each other and are screwed to the pump housing, have a first conduit which carries... |
09/17/2002 |
| 06439859 | High-pressure pump for feeding fuel to an internal combustion engine The pump has a body in which at least one cylinder for a piston is fixed by a head having a surface facing a corresponding surface of the body. The head has an intake conduit having an inlet at the surface of the head, and the body has a... |
08/27/2002 |
| 06428291 | Reciprocating pump for a high pressure cleaning appliance In the case of a reciprocating pump for a high pressure cleaning appliance including a pump housing in which there is disposed at least one pumping chamber having an inlet valve, an outlet valve and a reciprocating piston that projects... |
08/06/2002 |
| 06406269 | Fuel pump A fuel pump comprises a pumping plunger reciprocable within a plunger bore under the action of a cam drive arrangement. The cam drive arrangement comprises first and second surfaces defining therebetween a chamber, the volume of which can... |
06/18/2002 |