Class / Patent application number | Description | Number of patent applications / Date published |
464024000 | FLUID COUPLING | 11 |
20110130208 | Torsional Vibration Damper - A torsional vibration damper ( | 06-02-2011 |
20130296061 | ACTUATION AND PUMPING WITH FIELD-RESPONSIVE FLUIDS - Actuators, pumps, clutches, brakes and other assemblies may utilize field-responsive fluids that include a plurality of particles suspended in a base fluid. A positive displacement pump is provided by causing particles to align into chains and walls which inhibit traversal by fluid within a fluid enclosure. The field which aligns the particles is moved, thereby causing the walls of aligned particles to move. Because traversal of the walls by the fluid is inhibited, fluid is displaced by movement of the walls of aligned particles. A reciprocating positive displacement pump can be provided by ceasing particle alignment and returning the particles to a starting position. Objects may also be moved in response to collision with chains or walls of aligned particles that move in response to field movement. Fluid circulation features are provided for preventing agglomeration of particles when translating torque between plates in relative rotational movement. | 11-07-2013 |
20140342840 | ROTATION TRANSMITTER - A rotation transmitter includes: a first member, an intermediate member and a second member that are arranged coaxially with a rotation axis. The first member is formed with a first bearing surface along the rotation axis and a first direction. The second member is formed with a second bearing surface along the rotation axis and a second direction. The intermediate member is formed with a first middle bearing surface facing the first bearing surface and formed with a second middle bearing surface facing the second bearing surface. A static-pressure air bearing is formed between the bearing surface and the middle bearing surface. The rotation transmitter further includes: a preload device that biases the bearing surface and the middle bearing surface in a direction approaching each other. | 11-20-2014 |
464026000 | Including piston axially movable in cylinder having axis coextensive with axis of rotation of coupled members | 1 |
20160123427 | TORSIONAL VIBRATION DAMPER - A torsional vibration damper comprises an outer housing, an inner part concentric relative to the outer housing, a plurality of chambers formed between the outer housing and the inner part and being filled with a damping medium, a plurality of leaf spring assemblies joining the outer housing and the inner part in a torsionally flexible manner, wherein each of the leaf spring assemblies is arranged in one of said chambers and separates the corresponding chamber into sub-chambers, a plurality piston chambers formed separately in the outer housing, wherein each piston chamber is connected with the sub-chambers of one of the chambers, and a plurality of pistons adjustably arranged in the piston chambers, respectively, for controlling the flow of damper medium between the sub-chambers of a chamber. The damping properties of this torsional vibration damper can be adjusted easily. | 05-05-2016 |
464027000 | Including multiple piston-cylinder devices radially spaced from axis of rotation | 6 |
20090131178 | Torsional Vibration Damper Arrangement - A torsional vibration damper with a primary side and a secondary side, wherein rotation of the primary side relative to the secondary side causes displacement of hydraulic fluid from at least one displacement chamber and compression of pneumatic fluid in at least one compensating chamber. A first displacement chamber assembly includes a pair of axially opposed end walls bounding each displacement chamber in both axial directions and a circumferential wall bounding it in one radial direction, and a second displacement chamber assembly bounds it in the other radial direction. At least one circumferential recess provided in one of the first and second displacement chamber assemblies is engaged by at least one projection provided on the other of the first and second displacement chamber assemblies to limit the relative rotation. | 05-21-2009 |
20110028224 | TORQUE TRANSFER COUPLING - A torque transfer coupling includes a shaft and a first second set of hydraulic devices. Each hydraulic device of the first set of hydraulic devices has a first end operably connected to a first end of the shaft, wherein the hydraulic devices of the first set of hydraulic devices are disposed about an axis of the shaft. Each hydraulic device of the second set of hydraulic devices has a first end operably connected to a second end of the shaft, and wherein the hydraulic devices of the second set of hydraulic devices are disposed about the axis of the shaft. Each hydraulic device can include a piston and cylinder assembly wherein extension and retraction of each piston of each hydraulic device is generally tangential to a portion of a circle encircling the shaft. | 02-03-2011 |
20120184378 | CAMSHAFT ADJUSTER - A camshaft adjuster ( | 07-19-2012 |
20130079159 | Radial Piston Damped Torsional Coupling And Machine Using Same - A damped torsional coupling is utilized to couple a drive shaft to a work shaft while permitting some relative rotation due to torsional vibrations. The coupling includes a second coupler oriented to rotate with respect to a first coupler about an axis through a continuum of negative to positive torque orientations. The first coupler defines a fluted perimeter surface with a number of flutes, distributed with radial symmetry about the axis. The second coupler a number of pistons reciprocally received in respective barrels to define a variable volume chamber fluidly connected to a damping passage. A spring biases the pistons and barrels to extend toward a position in contact with one of the flutes. The contact end may be an edge of a roller that rolls on the fluted perimeter surface in one of the flutes responsive to torques transmitted between the couplers. | 03-28-2013 |
20130079160 | VARIABLE STIFFNESS TORSIONAL COUPLING AND MACHINE USING SAME - A variable stiffness torsional coupling includes a plurality of piston and barrel combinations that each define a variable volume chamber fluidly connected to a pressure control device. An electronic controller is in control communication with the pressure control device and configured to execute a resonance avoidance algorithm to generate pressure control signals to change the rotational stiffness of the coupling. | 03-28-2013 |
20160201758 | COUPLER FOR TRANSLATING ROTATIONAL FORCES | 07-14-2016 |
464028000 | Fluid confined in enclosure having flexible walls | 1 |
20160025150 | TORQUE TRANSMISSION DEVICE, ACTUATOR AND ROBOT - The invention relates to a torque transmission device ( | 01-28-2016 |