MECHANICAL-HYDRAULIC COMBINED TRANSMISSION DEVICE

WIPO Patent Application WO/2008/151527

A1

A mechanical-hydraulic combined transmission device including an engine, a transmission, a planetary gear set, a variable capacity pump, a hydraulic motor and a decelerator. The engine drives the transmission and in turn drives the planetary gear set. The planetary gear set is configured to distribute the power from the engine to the variable capacity pump and a ring gear of the planetary gear set respectively. The variable capacity pump drives the hydraulic motor and in turn drives a half shaft. The hydraulic power flow from the hydraulic motor and the mechanical power flow from the ring gear are combined together and output by the half shaft. The half shaft drives the decelerator and in turn drives a rare axle. A special vehicle which adopts the technique according to the invention is provided with a single engine, it may run continuously variably in a mechanical-hydraulic combined transmitting way, and simultaneously drive the onboard special machine to work in a mechanical way. Mechanical transmitting mode will be chosen when the vehicle moves to another place, so high speed may be achieved.

ZHAO HONGJIAN (CN)
ZHAO HONGZHI (CN)

PCT/CN2008/070767

December 18, 2008

April 22, 2008

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ZHAO HONGJIAN (CN)
ZHAO HONGZHI (CN)

F16H47/04; B60K17/00

GB2416375A	2006-01-25
CN101162043A	2008-04-16
CN101158392A	2008-04-09
CN101067447A	2007-11-07
CN1160827A	1997-10-01
CN2818924Y	2006-09-20
CN2252274Y	1997-04-16

LEADER PATENT & TRADEMARK FIRM (TOPBOX BuildingNo. 69, Beichen West Road,Chaoyang District, Beijing 9, CN)

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