Controlled engagement of supercharger drive cluth
US6289882A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B33/38
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A supercharger clutch system has a clutch housing (52) in which a clutch pack (84) is disposed to transmit torque from an input, such as a pulley (66), to one of the timing gears (58). The clutch pack (84) is disposed within a cage (92), having a spring seat member (98) adjacent thereto. A set of springs (104) biases the seat member and the clutch cage (92) to engage the clutch pack (84). On the opposite side, axially, of the clutch pack there is a piston (76) including a portion (80) surrounding the clutch cage (92) and engaging the seat member (98). The piston (76) and the clutch housing (52) define a pressure chamber (106) which, when pressurized, causes movement of the piston in a direction compressing the springs (104) and disengaging the clutch pack. The invention provides a method of controlling the clutch system by means of an electrohydraulic valve (110) which can communicate the pressure chamber (106) to either high pressure (112) or low pressure (132). The valve (110) is controlled by sensing throttle position (141) and modifying a command signal (130) to a coil (126) of the valve (110) in response to the throttle position (141), so that the rate of clutch engagement may…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.