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Dwenger

Douglas John Dwenger, Plymouth, MI US

Patent application numberDescriptionPublished
20100279811AUTOMATIC TRANSMISSION GEAR AND CLUTCH ARRANGEMENT - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.11-04-2010
20110088796CONTROL VALVE BODY WITH INTEGRATED PUMP FOR AUTOMATIC TRANSMISSIONS - An integrated control valve body and hydraulic pump for an automatic transmission provides improved efficiency and space utilization. The invention includes a control valve body having a plurality of control valves and passageways and an internal cavity having an inlet and an outlet, a pump rotor received within the internal cavity and having a plurality of radially and axially extending slots, radially moveable vanes and a shaft, and means for transferring drive energy from a drive shaft extending between an output of a torque converter and an input of the transmission to the shaft of the hydraulic pump. The means for transferring drive energy may be a pair of chain sprockets and a chain, a pair of spur or helical gears or other inter-axis power transfer components and may effect a speed increase or reduction.04-21-2011
20110100157TRANSMISSION WITH INTERNAL ISOLATOR AND BY-PASS CLUTCH - A transmission includes a housing defining a sealed interior and an input hub rotatably coupled to the housing. A gear set is disposed within the housing and configured for receiving a torque from an engine. The transmission further includes an isolator assembly and a bypass clutch, each disposed within the sealed interior of the housing. The isolator assembly is configured for selectively damping drivetrain inertia and/or vibration. The bypass clutch selectively engages and disengages the isolator assembly.05-05-2011
20110111917GEAR RETENTION ASSEMBLY - A gear retention assembly for retaining a gear that has a plurality of gear outer splines includes a gear housing and a retaining ring. The gear housing has a first end, a second end, and a plurality of inner splines each including a ramp portion. The second end of the gear housing includes an annular continuous rolled lip, where the continuous rolled lip and the ramp portions of the plurality of inner splines define a groove. The plurality of inner splines engage with the gear outer splines of the gear to transmit torque between the gear and the gear housing. The retaining ring is disposed in the groove and axially retains the gear. The rolled lip axially retains the retaining ring.05-12-2011
20110147155CLUTCH ASSEMBLY - A clutch assembly for transmitting a first torque between a first member and a second member includes a first clutch and a second clutch. The first clutch is disposed between the first member and the second member and has a predetermined design torque. The second clutch is disposed in series with the first clutch between the first member and the second member and has a predetermined holding torque that is less than the predetermined design torque. The second clutch allows rotation between the first member and the second member when the first torque is greater than the predetermined holding torque.06-23-2011

Douglas John Dwenger, Romulus, MI US

Patent application numberDescriptionPublished
20080202265Multi-Speed Transmission With Countershaft Gearing - A transmission is provided having a dual clutch and a countershaft gearing arrangement. The countershaft gearing arrangement includes a plurality of co-planar gears sets having gears that are selectively connectable to at least two countershafts. Moreover, one of the gears of the plurality of co-planar gears sets that provides a reverse gear ratio is selectively connectable to a first countershaft and is in mesh with only one other gear of the plurality of co-planar gears sets that is selectively engagable to a second countershaft.08-28-2008

Horst Dwenger, Goettingen DE

Patent application numberDescriptionPublished
20100316887Sheet product having an outer surface optimized for anodization - The exemplary embodiments relate to an aluminum architectural sheet product in which a clad layer is applied to at least one side of a core layer. Preferably, the core layer is made of an alloy selected from the AA5XXX series alloys with a magnesium content greater than 3 weight %, and the clad layer (or each clad layer) is made of an alloy selected from alloys AA5005, AA5205, AA5052, AA5252 and AA5005A. The product may be provided with an anodic film on one or both faces and the film(s) may be covered with one or more layers, e.g. of paint.12-16-2010