Patent ID: 8752585

Claim:
A pressure control valve comprising: a housing comprising: a first housing portion, a second housing portion, a third housing portion, a reference pressure connection, a reference pressure chamber, a preliminary pressure connection, a preliminary pressure chamber, a control pressure connection, and a control pressure chamber, the reference pressure connection, the reference pressure chamber, the preliminary pressure connection, the preliminary pressure chamber, the control pressure connection and the control pressure chamber being configured to cooperate with a control member moveable in an axial direction within the housing so as to adjust a desired control pressure between a preliminary pressure at the preliminary pressure connection and a reference pressure at the reference pressure connection; a driving device configured to act on the control member; at least one first sealing device comprising a first sealing element, the at least one first sealing device being configured to seal the reference pressure chamber against the control member; at least one second sealing device comprising a second sealing element arranged to be form-locking within at least one of the housing and the control member while being disposed at a distance from the control member in a radial direction, the at least one second sealing device being configured to seal the preliminary pressure chamber against the reference pressure chamber; at least one third sealing device configured to seal the control pressure chamber against the preliminary pressure; and a second spring device, the second spring device being configured to bias a third sealing element against the third housing portion.