| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 192700140 | Including surface characteristics of clutch-element | 13 |
| 20080277233 | Clutch for a Motor Vehicle - In a clutch for a motor vehicle comprising a first ( | 11-13-2008 |
| 20090000899 | Clutch Assembly and Friction Plate - A clutch assembly and clutch plates utilized therein is provided which gives smooth engagement and high holding torque. The friction facing has differing coefficients of friction and different heights. Also claimed is a method of manufacture and a clutch assembly with a piston contacting the friction pack radially displaced from a radial centreline of the friction facings. | 01-01-2009 |
| 20090107791 | Isolator decoupler - An isolator decoupler comprising a first tapered portion for connecting to a driving shaft, a second tapered portion cooperatively engaging the first tapered portion, the second tapered portion having a frictional engagement with a pulley, and an elastomeric member operatingly disposed between the second tapered portion and the pulley. | 04-30-2009 |
| 20090183965 | MULTIPLATE CLUTCH - A multiplate clutch, in particular a starting clutch in a motor vehicle, has primary-side plates which are connected to a drive unit and secondary-side plates which are connected to a drivetrain, in particular to a transmission input. The primary-side and/or secondary-side plates are aligned, in each case with regard to their flatness deviations, with respect to one another, that is to say are arranged so as to be rotated relative to one another in the peripheral direction, such that at least the flatness deviations of adjacent plates do not abut against one another in the axial direction. | 07-23-2009 |
| 20090321210 | COATINGS FOR CLUTCH PLATES - A multi-layer coating for a smooth contact surface of a clutch plate and a method for manufacturing the same have been developed. This coating can help reduce the prevalence of clutch shudder, noise, and plate wear that is often encountered in a friction-disc clutch mechanism found in a motor vehicle's powertrain. The multi-layer coating may comprise a relatively soft base layer and one or more relatively hard particle layers overlying the base layer. This combination of layers can help provide stable friction characteristics and thermal properties between clutch plate surfaces. One or more optional bonding layers may also be provided between any two adjacent layers to improve the adherent bonding therebetween. At least some of the layers of the multi-layer coating may be applied by a HVO/AF thermal spray procedure. | 12-31-2009 |
| 20100326786 | WET-TYPE MULTI-PLATE CLUTCH - In a wet-type multi-plate clutch comprising an externally-toothed plate and an internally-toothed plate each of which is formed by adhering a friction material on a core plate and in which torque is transmitted by engaging the externally-toothed plate and the internally-toothed plate, the friction materials are adhered on opposed surfaces of the externally-toothed plate and the internally-toothed plate which are opposed to each other. | 12-30-2010 |
| 20120012433 | WET-TYPE MULTI-PLATE CLUTCH - In a wet-type multi-plate clutch comprising an externally-toothed plate and an internally-toothed plate each of which is formed by adhering a friction material on a core plate and in which torque is transmitted by engaging the externally-toothed plate and the internally-toothed plate, the friction materials are adhered on opposed surfaces of the externally-toothed plate and the internally-toothed plate which are opposed to each other. | 01-19-2012 |
| 20120325614 | LOCK-UP CLUTCH - Disclosed is a lock-up clutch operative to uniform temperatures on a multiple number of friction surfaces, thereby improving accuracy of a lock-up control and to prevent shudders of a vehicle from being generated. The lock-up clutch includes a front cover, a lock-up piston, a plurality of torque transmitting plates, and a plurality of friction materials formed on the torque transmitting plates and having three or more friction surfaces. The friction materials are constituted by a first friction material frictionally contactable with the front cover, a second friction material frictionally contactable with the lock-up piston, and third friction materials frictionally contactable with at least one of the plates. Three or more friction surfaces are constituted by outside friction surfaces formed on the first and second friction materials and each having a small area, and inside friction surfaces formed on the third friction materials and each having a large area. | 12-27-2012 |
| 20130153358 | SEGMENTED FRICTION MATERIAL FOR CLUTCHES - A friction plate for a clutch assembly includes a core plate and a plurality of friction segments made of a friction material. A plurality of grooves are disposed between said plurality of friction segments. Each segment has tapered sides so that the grooves have a first width adjacent the outer diameter of the core plate and a smaller second width smaller adjacent the inner diameter of the core plate. This tapered groove structure directs oil from the outside the clutch assembly to the inside to improve cooling efficiency. | 06-20-2013 |
| 20130213758 | MULTIDISK SHIFTING ELEMENT - A multi-disk shifting element of a motor vehicle transmission, which includes a plurality of outer disks ( | 08-22-2013 |
| 20140158494 | FORMED FRICTION PLATE FOR WET FRICTION CLUTCH - A friction clutch pack exhibiting improved high speed stability includes a first plurality of friction plates or discs preferably having friction material on both faces interleaved with a second plurality of thicker reaction plates or discs. The friction plates comprise a formed core plate having multiple obliquely oriented or angularly offset sinusoidal waves. Male splines around the periphery of each friction plate engage complementary splines on a cylindrical housing. The reaction plates are flat and thicker than the friction plates and include female splines around an inner opening which engage complementary splines on a shaft or quill. | 06-12-2014 |
| 20150362022 | ALUMINUM CLUTCH COMPONENTS WITH FERROUS SURFACES - Friction clutch components, such as apply plates, reaction plates and backing plates for motor vehicle automatic transmissions, fabricated according to the present invention, have reduced weight and improved service life. Apply plates and reaction plates are fabricated of aluminum coated with a thin layer of thermally sprayed steel or ferrous material. Backing plates are fabricated of powdered metal aluminum, stamped and machined aluminum, forged and machined aluminum or extruded aluminum and also coated with a thin layer of thermally sprayed steel or ferrous material. The thermally sprayed steel material may be a low carbon steel such as SAE 1008 or 1010 or a similar alloy. The plates are then finished by belt sanding, brushing or a similar surface finishing technique. | 12-17-2015 |
| 192700150 | Axially tapered mating surfaces | 1 |
| 20100065396 | FRICTION COUPLING - The invention proposes a friction coupling, in particular for use in motor vehicles, e.g. for controlling an air compressor, in which coupling at least two friction surfaces can be brought into frictional connection. According to the invention, two conical friction surface pairs are provided. | 03-18-2010 |
