Patent ID: 6889811
Filing Date: 2005-05-10
Classification: F16D

Abstract:
1. A clutch system comprising: a clutch device for installing in a drive train between a drive unit and a transmission; a hydraulic slave cylinder for actuating said clutch device hydraulically; a hydraulic medium supply device for supplying pressurized hydraulic medium; a hydraulic connection between said supply device and said slave cylinder; a feed valve in said hydraulic connection between said supply device and said slave cylinder for feeding hydraulic medium to the slave cylinder; a hydraulic medium receptacle; a hydraulic connection between said slave cylinder and said receptacle; a discharge valve arranged in said hydraulic connection between said slave cylinder and said receptacle for discharging hydraulic medium from said slave cylinder, said discharge valve being separate from said feed valve, and a control unit configured to keep the feed valve and the discharge valve open over a ventilation time interval during which a hydraulic medium flow ventilates said slave cylinder.