Clutch with on-demand cooling
US6098771A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 1999 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | May 3, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/0214
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clutch is disclosed including at least one fixed member, at least one clutch plate movable between engaged and disengaged positions, a housing about the clutch plate, a piston to move the clutch plate, a pressurized fluid supply to the piston, a passage through the piston, and a valve member located proximate the passage for opening and at least partially closing the passage. Also disclosed is a clutch including at least one fixed member, at least one clutch plate movable between engaged and disengaged positions, a housing about the clutch plate, a piston to move the clutch plate, an opening through the piston, and a valve member disposed within the opening for opening and closing the passage. Also disclosed is a clutch including at least one fixed member, at least one clutch plate movable between engaged and disengaged positions, a housing about the clutch plate, a piston to move the clutch plate; a pressurized fluid supply to the piston; and a valve member located within the piston for selectively transmitting the pressurized fluid from a first end of the piston to a second end of the piston based upon the fluid pressure at the first end of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.