Title:
A VACUUM PUMP HAVING A DISCONNECTABLE DRIVE COUPLING
Document Type and Number:
WIPO Patent Application WO/2014/096195
Kind Code:
A3
Abstract:
A vacuum pump drive is disconnectable from a drive shaft upon movement of a piston against a return spring, under the action of oil pressure. The piston comprises a speed synchronising clutch engageable with the input shaft to rotate the piston at the speed of the input shaft, and teeth to directly dog the piston and input shaft together. The arrangement provides a failsafe drive coupling capable of high torque transmission in direct dog drive.
Inventors:
WARNER SIMON (GB)
HEAPS DAVID (GB)
HEAPS DAVID (GB)
Application Number:
PCT/EP2013/077392
Publication Date:
August 21, 2014
Filing Date:
December 19, 2013
Export Citation:
Assignee:
WABCO AUTOMOTIVE UK LTD (GB)
International Classes:
F04C18/356; F04C18/344; F04C25/02; F04C28/06; F04C28/28; F04C29/00
Domestic Patent References:
| WO2000031419A1 | 2000-06-02 | |||
| WO2008061749A1 | 2008-05-29 | |||
| WO2012164466A1 | 2012-12-06 |
Attorney, Agent or Firm:
GRAY, James (London SE1 2AU, GB)
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