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| Number | Title | Issue Date |
| 7421989 | Vane-type cam phaser having increased rotational authority, intermediate position locking, and dedicated oil supply A vane-type camshaft phaser having a rotational authority between 40 crank degrees before TDC and 30 crank degrees after TDC. The phaser includes a stator seat formed at a rotation position intermediate between full advance and full retard. A locking pin in a vane o... | 09/09/2008 |
| 7421991 | Brake-actuated vane-type camshaft phaser A vane-type camshaft phaser includes a vaned camshaft rotor disposed within a lobed stator, defining phase advance and retard chambers filled with oil. The height of the rotor is less than the height of the stator, providing space for a vaned brake rotor alongside t... | 09/09/2008 |
| 7343887 | Apparatus for abnormal diagnosis of variable valve timing mechanism An abnormality diagnosis system 100 includes a VVT controller 110, an adjustable valve mechanism 120, a cam angle sensor 130, a model computation module 140, an abnormality detection module 150, and an alarm lamp 160.... | 03/18/2008 |
| 7331318 | Camshaft adjuster with play-free locking Camshaft adjusters according to the swivel motor principle may be provided with a bar which arrests the rotor in a position relative to the stator. A bar according to the invention is provided with two portions, between which a change of power transmission takes pla... | 02/19/2008 |
| 7308878 | Valve timing control apparatus A valve timing control apparatus includes a driving side rotational member, a driven side rotational member formed with a plurality of recessed portions into which a supporting jig is insertable at a second side thereof in the axial direction, a fluid pressure chamb... | 12/18/2007 |
| 7275476 | Oscillating motor for a camshaft adjusting device An oscillating motor for a camshaft adjusting device has a stator and a rotor mounted so as to be rotatable relative to one another. The stator has an inner wall and radially extending stator vanes connected to the inner wall. The rotor has a base member and radiall... | 10/02/2007 |
| 7270096 | Variable phase drive mechanism A twin vane-type phaser is described which is provided with a locking mechanism for locking the drive member to the driven members when the pressure in the working chambers is a below is predetermined value. The locking mechanism comprises two coaxial locking pins | 09/18/2007 |
| 7204217 | Hydraulic camshaft adjuster for a camshaft of an internal combustion engine In a hydraulic camshaft adjuster for a camshaft of an internal combustion engine, with an inner body connected for rotation with the camshaft and having at least one vane extending into a chamber formed in an outer body mounted rotatably relative to the camshaft and... | 04/17/2007 |
| 7182052 | Valve timing controller A shoe housing receives a driving force from a crankshaft and a vane rotor rotates with a camshaft in combination. The vane rotor is received in the shoe housing in such a way as to freely turn. Each of the vanes of the vane rotor partitions each of three receiving ... | 02/27/2007 |
| 7175403 | Integrated select high pressure valve A rotary actuator includes one or more rotor vanes (40); an endplate (60); a corner seal (30) being positioned between the rotor vanes (40) and the endplate (60); a vane seal (20); a high pressure chamber and a low pressure ... | 02/13/2007 |
| 7159549 | Variable valve system of internal combustion engine A camshaft is formed at a generally middle portion with an enlarged cylindrical portion. An annular vane member is mounted on the enlarged cylindrical portion and secured thereto by means of a nut. An annular housing or sprocket is arranged to receive therein the an... | 01/09/2007 |
| 7150251 | Valve timing control apparatus The invention intends to improve a response by utilizing a rotational variable torque of a cam shaft. Communication paths respectively communicating an advance hydraulic chamber and a retard hydraulic chamber provided in a second rotary member and a hydraulic connec... | 12/19/2006 |
| 6997150 | CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals A variable camshaft timing phaser for an internal combustion engine having at least one camshaft comprising a plurality of vanes in chambers defined by a housing and a spool valve. The vanes define an advance and retard chamber. At least one of the vanes is cam torq... | 02/14/2006 |
| 6971351 | Valve timing adjusting device A region including an engaging hole is given surface treatment such as partial quench hardening by induction hardening for improving surface hardness of the region. The partial quench hardening by induction hardening provides the region with satisfactory mechanical ... | 12/06/2005 |
| 6955359 | Seal assembly and crawler-track connection structure A seal assembly has simple assembly structures, and provides secure sealing effects. A crawler-track connection structure allows the seal assembly to be easily mounted, and securely prevents overflow of a lubricant and the like to the outside. A pair of seal rings (... | 10/18/2005 |
| 6920853 | Variable valve timing control device A variable valve timing control device includes a rotation member for opening or closing a valve, a rotation transmission member engaged with the rotation member to be relatively rotatable, a vane provided on either one of the rotation member or the rotation transmi... | 07/26/2005 |
| 6883480 | Camshaft adjuster for internal combustion engines of motor vehicles A camshaft adjuster for internal combustion engines of motor vehicles has a stator having a casing and stays connected to the casing and projecting radially inwardly. A rotor rotatable relative to the stator is fastened on the camshaft. The rotor has a rotor base me... | 04/26/2005 |
| 6866484 | Multi-cylinder high-pressure plunger pump The invention relates to a multi-cylinder high-pressure plunger pump with a plurality of plungers and a drive unit therefor which is arranged in a housing, the plungers being arranged equidistantly on a circle and the drive unit comprising a roller which is mounted ... | 03/15/2005 |
| 6827052 | Variable valve timing device A variable valve timing control device includes a rotation member unitary fixed to a rotation shaft for controlling a valve timing assembled to a cylinder head of an internal combustion engine to be rotatable, a rotation transmission member engaged with the rotation... | 12/07/2004 |
| 6460333 | Hydraulic pressure transformer A hydraulic pressure transformer has a port block which is attached to an end cap. The end cap includes a plurality of ports opening at an end face and at least one actuation port opening at or near a peripheral surface. A barrel which is rotatable about ... | 10/08/2002 |
| 5983782 | Rotary actuator with hole-in-the-wall for fail safe A fluid powered rotary actuator (10) having a stator (13) and a rotor (15) journalled with limited rotary motion within the stator includes at least one arcuate chamber defined between the rotor and stator and has an angularly movable vane (16) fixed to t... | 11/16/1999 |
| 5979163 | Rotationally pivotal motion controller A rotationally pivotal motion controller pivotally interconnects two adjoining elements and controls the pivotal motion of a first of the two adjoining elements with respect to a second of the two adjoining elements. The rotationally pivotal motion contro... | 11/09/1999 |
| 5975858 | Hydraulic drive unit of a press machine and swash plate type variable capacity axial piston pump to use for said device A hydraulic drive unit of a press machine and a swash plate type variable capacity axial piston pump to use a hydraulic drive unit. Discharge of the pump and the direction of the hydraulic pressure can be controlled at high speed, and the direction of the... | 11/02/1999 |
| 5868555 | Hydraulic drive unit of a press machine and a swash plate type variable capacity axial piston pump to use for said device A hydraulic drive unit of a press machine and a swash plate type variable capacity axial piston pump to use for a hydraulic drive unit. Discharge of the pump and the direction of the hydraulic pressure can be controlled at high speed, and the direction of... | 02/09/1999 |
| 5722616 | Conical rotary actuator and its application to the control of a rudder A rotary actuator (16) has an inner body (32) forming a rotor and at least one outer body (34) forming a stator. The inner body (32) and outer body (34) carry blades (40,44) arranged in an alternating manner and defining between them two series of variabl... | 03/03/1998 |
| 5718160 | Positioning device A positioning device having a high rigidity and smooth positioning characteristics. The positioning device holds a piston formed integrally with a table within a cylinder and has pressure-adjusting elements in two pressurizing chambers in the cylinder par... | 02/17/1998 |
| 5410944 | Telescoping robot arm with spherical joints A telescoping robot arm with singularity-free three degrees of motion freedom spherical joints is disclosed. The telescoping section and spherical joints are hydraulically operated to achieve a high power-to-weight ratio and use conventional seals of the ... | 05/02/1995 |
| 5394766 | Robotic human torso A robotic assembly is provided that simulates the size, appearance and movement of a human torso. The torso includes a unique combination of high speed rotary and linear actuators arranged in a geometry that enables anatomically correct human-like movemen... | 03/07/1995 |
| 5201637 | Hydraulic piston pump with servo displacement control A variable displacement hydraulic piston pump and servo displacement control which combines a rotary vane type actuator and a port plate to obtain both servo and actuation functions for a hydraulic piston pump. The control includes a construction which pr... | 04/13/1993 |
| 5136896 | Rotary indexing apparatus A rotary indexing apparatus includes a housing and an indexing member in the form of a plate mounted for rotation in the housing. Locating pins are received in apertures in the indexing plate to effectively lock the indexing plate and an affixed spindle i... | 08/11/1992 |
| 5107754 | Articulated mechanism with rotary vane motors An articulated mechanism for use as an articulated arm of an industrial robot, for example, includes a plurality of arms interconnecting articulations having respective fluid pressure angular displacement motors for angularly displacing the arms relativel... | 04/28/1992 |
| 5101862 | Rotary actuator and valve control system An oscillatory rotary actuator is provided for controlling an adjustable valve. The actuator comprises a freely rotating, cylindrical housing with concentric inner and outer walls about its center. The housing has at least one depending vane, which functi... | 04/07/1992 |
| 5040453 | Actuator housing continuation The present invention provides housing member for a rotary fluid powered actuator including a cylindrical housing member having an opening in at least one end, a head member received on each open end of the housing where each head has a central aperture i... | 08/20/1991 |
| 5017106 | Pump for conveying gases and providing a differential pressure In pumps for conveying gases and providing a differential pressure between the pump inlet and outlet, a pumping space within the pump is hermetically sealed from the pump drive unit. No oil or grease-lubricated parts are located within the pumping space. ... | 05/21/1991 |
| 4965999 | Tandem rotary master cylinder The present invention relates to a tandem rotary master-cylinder for a vehicle brake circuit comprising a body (10;102) in which a first vane (20;114) is mounted for rotation in response to rotation of an input shaft (12;100) in order to generate pressure... | 10/30/1990 |
| 4825754 | Vane-type rotary hydraulic actuator device intended for driving an aircraft control surface Rotary hydraulic actuator comprising a vane (1) which is mounted rotatably and sealingly in a chamber (2) made in a body (3) and on the faces of which a hydraulic fluid pressure is exerted, the vane being fixed mechanically to an element to be driven in r... | 05/02/1989 |
| 4800801 | Pump A swash plate pump includes a housing and cylinders arranged in a circular pattern around the drive shaft. Piston rods are pivotally connected at one end to the swash plate and mechanism surrounding the drive shaft and axially slidable along it controls t... | 01/31/1989 |
| 4784047 | Oscillating piston motor A hydraulic or pneumatic oscillating piston motor has a housing (1), a driven shaft (2) mounted in the housing for rotation and an oscillating piston (3) that is fixed to the shaft. The piston has two lever arms (49,8) having pressure areas of different s... | 11/15/1988 |
| 4774875 | Actuator seal arrangement A seal arrangement for use in a rotary actuator having a housing and an end wall where a shaft extends through an aperture in the end wall and and carries a vane, a stator assembly is provided and directly inwardly from the housing having an end edge in a... | 10/04/1988 |
| 4716996 | Hydraulic rotation damper An hydraulic rotation damper comprises a bearing housing with inner stator vanes and a rotor with rotor vanes, the rotor being arranged on a carrier arm journal which is mounted in bearings in the bearing housing with the stator vanes and the rotor vanes ... | 01/05/1988 |
