Title:
PUMP TYPE HYDRAULIC COUPLING
Document Type and Number:
WIPO Patent Application WO/2007/065311
Kind Code:
A1
Abstract:
A pump type hydraulic coupling for a vehicle uses a gear pump to connect an engine and
a transmission. The pump type hydraulic coupling includes a pinion (2) that rotatably
and coaxially connecting in the shell (1), a big rim (3) that engaging with the
pinion (2), a crescent (4) set between the pinion (2) and the big rim (3), a one-way
clutch (6) that secured at the connecting end of the pinion (2) and the shell (1).
There are a high pressure oil chamber (7) and a low pressure oil chamber (8) in the
shell. They are respectively connected with a high pressure oilway (13) and a
low pressure oilway (12). The high pressure oilway (13) is connected with a control
module (11). The control module (11) includes pressure valves, centrifugal
valve, pressure maintaining valve and pressure setting up valve. During coasting,
the pump type hydraulic coupling of this invention can ensure the brake function
of the engine. While it works under the situation of low speed and high pressure,
it has good stability and its pulsation is small.
Inventors:
GUAN YUE (CN)
FENG JIANGUO (CN)
FENG JIANGUO (CN)
Application Number:
PCT/CN2005/002315
Publication Date:
June 14, 2007
Filing Date:
December 26, 2005
Export Citation:
Assignee:
GUAN YUE (CN)
FENG JIANGUO (CN)
FENG JIANGUO (CN)
International Classes:
B60K17/02; F16D31/04
Foreign References:
| CN2442030Y | 2001-08-08 | |||
| CN1412439A | 2003-04-23 | |||
| US4674615A | 1987-06-23 | |||
| CN2229555Y | 1996-06-19 | |||
| US5735764A | 1998-04-07 | |||
| US6332522B1 | 2001-12-25 |
Attorney, Agent or Firm:
JILINCHANGCHUN NEW CENTURY PATENT AGENT LTD. (Renmin Street Changchun, Jinlin 1, CN)
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