Power transmitting device and vehicle having same mounted thereon
US8454477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | May 8, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/067
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power transmission configured with a mechanical pump that generates and deliver a fluid pressure to a clutch. An electromagnetic pump generates and delivers a fluid pressure to the clutch, and an accumulator connects the clutch and the electromagnetic pump, and accumulates fluid pressure acting there between. A switching valve selectively switches between connecting the mechanical pump side and the clutch in a fluid communicating manner and connecting the electromagnetic pump and the clutch in a fluid communicating manner. A valve drive portion that drives the switching valve so as to connect the mechanical pump side and the clutch when the mechanical pump is driving, and drives the switching valve so as to connect the electromagnetic pump and the clutch when the electromagnetic pump is driving in place of the mechanical pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.