EP 0438631 B1 19930915 - PNEUMATIC ACTIVATED CENTRAL LOCKING MECHANISM FOR A MOTOR VEHICLE
Title (en)
PNEUMATIC ACTIVATED CENTRAL LOCKING MECHANISM FOR A MOTOR VEHICLE
Publication
Application
Priority
DE 4002137 A 19900125
Abstract (en)
[origin: EP0438631A1] A vane-cell pump (1) has a return line (6) which connects its pump outlet (3) to a working chamber (7) of the vane-cell pump (1). An electrically actuable stop valve (12) is inserted in this return line (6). When this stop valve (12) is opened, part of the compression region of the vane-cell pump (1) becomes ineffective, so that it is possible to generate only a reduced pressure which is sufficient for obtaining a locking position of a central-locking system. With the stop valve (11) closed, a pressure sufficient for obtaining a theft-prevention position can be built up. <IMAGE>
IPC 1-7
IPC 8 full level
E05B 65/12 (2006.01)
CPC (source: EP)
E05B 77/50 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0438631 A1 19910731; EP 0438631 B1 19930915; DE 4002137 A1 19910801; DE 59002744 D1 19931021
DOCDB simple family (application)
EP 90115750 A 19900817; DE 4002137 A 19900125; DE 59002744 T 19900817