Quotables
"Inventing is a combination of brains and materials. The more brains you use, the less material you need."
Charles Kettering
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7500424 | Hydraulic machine having pressure equalization A hydraulic machine includes a valve plate, with first and second fluid ports in a surface thereof. A cylinder barrel is rotatably coupled to the valve plate. A plurality of cylinders is formed in the cylinder barrel, such that, as the barrel rotates, each cylinder ... | 03/10/2009 |
| 7406911 | Expander An expander (M) employing steam as a working medium is formed from a first radially inner group of axial piston cylinders (49) arranged annularly on a rotor (27) so as to surround the axis (L) of an output shaft (28), and a second radially outer... | 08/05/2008 |
| 7402027 | Rotating group of a hydraulic machine A hydraulic machine-has a rotating group located within a housing and a port plate to control flow from the barrel of the rotating group to inlet and outlet ports. The port plate is sealed against one of the housing or barrel and sleeves extend between the other of ... | 07/22/2008 |
| 7390178 | Compressor A compressor comprises a plurality of pairs of a cylinder bore and a piston moving reciprocally in the cylinder bore, a valve plate provided with a plurality of outlet holes for leading pressurized gas in the cylinder bores to the outside, a plurality of strap-shape... | 06/24/2008 |
| 7371055 | Tandem pump unit The present invention provides a tandem pump unit that includes: a first hydraulic pump and a second hydraulic pump respectively having a first pump shaft and a second pump shaft respectively having adjacent ends connected together so that the first and second pump ... | 05/13/2008 |
| 7367783 | Rotating fluid machine A rotary valve for switching supply passages, and discharge passages of high-temperature and high-pressure steam for a rotor rotatably supported at a casing is constructed by making a fixed side valve plate and a movable side valve plate abut to each other on a slid... | 05/06/2008 |
| 7361000 | Tandem pump unit The present invention provides a tandem pump unit that includes: a first hydraulic pump and a second hydraulic pump respectively having a first pump shaft and a second pump shaft respectively having adjacent ends connected together so that the first and second pump ... | 04/22/2008 |
| 7357067 | Spherical joint of a hydrostatic piston machine A hydrostatic piston machine having a cylinder block with several cylinders, in which are slidably mounted pistons in load engagement with a reaction member via transmission members, each transmission member is connected to at least one of the piston or the reaction... | 04/15/2008 |
| 7353745 | Hydrostatic adjustment unit with swashplate, rotating cylinder block and a rotational speed signal transmitter A hydrostatic adjustment unit with a swash plate for adjusting the stroke of displacer pistons which are arranged in a rotating cylinder block is described. The displacer pistons each have a slider block which bears against a support face of the swash plate and is h... | 04/08/2008 |
| 7340988 | Hydraulic machine having axial pistons with a synchronization system The hydraulic machine having axial pistons comprises: a cylinder block mounted to rotate about a first axis of rotation; and a swash plate supporting a sliding disk in rotation about a second axis of rotation which is inclined relative to the first axis of rotation.... | 03/11/2008 |
| 7337869 | Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof A vehicle includes an integrated drive module coupled to an axle thereof. The module includes a hydraulic motor configured to provide motive power at an output shaft, and a differential for distributing the motive power to right and left portions of the axle. The hy... | 03/04/2008 |
| 7331272 | Multiple-stroke hydrostatic axial piston machine A multiple-stroke hydrostatic axial piston machine has a plurality of piston-shaped displacement bodies (13) that can each move longitudinally in a displacement chamber (12) and are each supported by a roller body on a track (9) that is provided... | 02/19/2008 |
| 7331435 | Continuously blockable arresting device A continuously blockable arresting device includes a housing and a shaft having an end received in the housing and which may be externally acted upon causing rotation thereof. The housing has a fluid-filled working space and two subchambers which can be connected to... | 02/19/2008 |
| 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 |
| 7320273 | Compressor A compressor used in a refrigerating cycle is provided as a miniaturized and lightweight unit at low production cost by selecting an optimal material to constitute components or by forming the housing in a specific shape so as to allow the components to have smaller... | 01/22/2008 |
| 7311034 | Hydraulic device The invention relates to a hydraulic device having, in a housing, a rotor, which can rotate about a first axis, with pistons, drum sleeves, which can rotate about a second axis and have a chamber formed by a cylindrical wall and a piston. Between the housing and the... | 12/25/2007 |
| 7305915 | Efficient pump/motor with reduced energy loss A bent axis pump/motor includes a back plate positioned within a casing, and a check valve positioned in the back-plate, the check valve configured to control passage of fluid from within the casing to an interior of the back plate. A yoke, coupled to the back plate... | 12/11/2007 |
| 7302883 | Hybrid nutating pump A nutating pump has a cross-type universal joint connecting a nutating member to a pump housing, ball joints connecting the nutating member to piston rods, and the piston rods fixed to piston heads so that the piston heads wobble in pump cylinders. ... | 12/04/2007 |
| 7278263 | Charge pump for a hydraulic pump A charge pump design for a hydraulic drive apparatus such as a hydrostatic transmission, integrated hydrostatic transaxle or pump having a rotatable pump cylinder block mounted in a sump and connected to a hydraulic circuit by means of a center section or the like. ... | 10/09/2007 |
| 7263925 | Hydraulic axial piston machine The invention concerns a hydraulic axial piston machine (1) with a cylinder body (3), at least one piston (9) to be axially displaceable in the cylinder body (3), said piston (9) resting on a swash plate (13) by way of a sli... | 09/04/2007 |
| 7264019 | Controlled-flow hydraulic distributor The hydraulic distributor exhibits a cylindrical and internally-hollow body (2) having an inlet chamber (3) for a fluid and an outlet chamber (4) which are interconnected directly (by a communication conduit), or indirectly by an external distri... | 09/04/2007 |
| 7185577 | Tandem pump unit The present invention provides a tandem pump unit that includes: a first hydraulic pump and a second hydraulic pump respectively having a first pump shaft and a second pump shaft respectively having adjacent ends connected together so that the first and second pump ... | 03/06/2007 |
| 7146810 | Pump assembly A dual pump apparatus for use on a vehicle or industrial application having a housing in which a plurality of hydraulic pumps are mounted and driven by a prime mover. The prime mover is drivingly coupled to a main input shaft, which drives the hydraulic pumps. An au... | 12/12/2006 |
| 7144227 | Reciprocating-piston machine with a driver In a reciprocating-piston machine, in particular a refrigerant compressor for a motor vehicle air-conditioning system, comprising a machine shaft rotatably supported in a housing with a plurality of pistons arranged circularly around the machine shaft and an annular... | 12/05/2006 |
| 7124677 | Swashplate assembly A rotary hydraulic machine has a swashplate adjustable by an actuator. The swashplate has a part cylindrical bearing surface supported by a complimentary bearing surface in the housing and a fluid bearing acts between the surfaces. The fluid is supplied to the fluid... | 10/24/2006 |
| 7118324 | COcompressor A CO2 compressor for an air conditioner of a motor vehicle is suggested having a sealing device, assigned to the driveshaft of the CO2 compressor, which is implemented as a sliding ring. The CO2 compressor features a lubrication devi... | 10/10/2006 |
| 7090472 | Pump or motor with interconnected chambers in the rotor Pump or motor having a rotor with chambers with a through rotation variable volume which are connectable via switches to either a first line connection or a second line connection. During switching between the line connections, the volume of the chamber changes and ... | 08/15/2006 |
| 7082759 | Hydraulic drive vehicle A hydraulic driving vehicle comprises front and rear transaxles incorporating respective hydraulic motors, and a pump unit separated from the front and rear transaxles. The pump unit incorporates a hydraulic pump having a pump shaft. A hydraulic circuit is formed by... | 08/01/2006 |
| 7056100 | Piston assembly for a compressor A compressor for a vehicle air conditioning system comprises a front casing in which is mounted a swash or wobble plate arrangement operatively connected to a drive shaft and a plurality of pistons each provided with a piston body at one end and a foot portion at it... | 06/06/2006 |
| 7052246 | Axial piston micropump An axial piston micropump is disclosed, having a cylinder drum, in which several cylinders are provided a swash plate, with respect to which the cylinder drum is rotatable. It is desirable for such a micropump to have a small displacement combined with a long servic... | 05/30/2006 |
| 7040216 | Hydraulic motor A hydraulic motor is equipped with an output shaft (2), a cylinder (4) arranged around the output shaft and receiving a plurality of pistons (6) expanding with the fluid pressure, a diagonal plate (7) that contacts the plurality of the ex... | 05/09/2006 |
| 7033525 | High conductivity polyaniline compositions and uses therefor The present invention describes compositions formed from polyanaline and carbon nanotubes, which exhibit enhanced conductivity and which provide uses in electronic circuit applications. ... | 04/25/2006 |
| 7029241 | Circumferential piston compressor/pump/engine (CPC/CPP/CPE); circumferential piston machines A rotary piston machine includes a first spheroidal element including pistons and/or cylinders and a second spheroidal element including pistons and/or cylinders, wherein the first element can move relative to the second element. The machine can be used as part of a... | 04/18/2006 |
| 7021904 | Swash plate type hydraulic pump or motor A swash plate type hydraulic pump or motor comprises first and second swash plates which move reciprocally while opposing first and second pistons, so as to expand and contract a volume chamber according to rotation of a cylinder block. Drive pistons push on the swa... | 04/04/2006 |
| 7018181 | 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 a bearing in the swashplate.... | 03/28/2006 |
| 7013791 | Axial piston machine with a swash plate The axial piston machine comprises a case, a shaft and a cylinder block (2), arranged so as to rotate in the case and having a plurality of cylinders (21) with pistons, adapted to slide in said cylinders and connected to piston rods (6) by means... | 03/21/2006 |
| 7007468 | Charge pump for a hydrostatic transmission A charge pump design for a hydraulic drive apparatus such as a hydrostatic transmission, integrated hydrostatic transaxle or pump having a rotatable pump cylinder block mounted in a sump and connected to a hydraulic circuit by means of a center section or the like. ... | 03/07/2006 |
| 7007897 | Flight control actuation system A flight control actuation system comprises a controller, electromechanical actuator and a pneumatic actuator. During normal operation, only the electromechanical actuator is needed to operate a flight control surface. When the electromechanical actuator load level ... | 03/07/2006 |
| 7004729 | Compressor with pot-shaped housing and housing sealing cover A compressor, in particular for air conditioning systems in motor vehicles, having a housing, a housing sealing cover, a drive shaft with bearings and a drive device for pistons that are displaced back and forth. The drive device transfers the rotational displacemen... | 02/28/2006 |
| 6986406 | Hydrostatic transmission An axle driving apparatus having a housing having two members joined along a joint surface and a hydraulic axial piston pump and motor mounted on a center section located in the housing, wherein the pump and motor are mounted perpendicular to one another. The motor ... | 01/17/2006 |
