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Title:
PARKING BRAKE DEVICE FOR A MOTOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/243282
Kind Code:
A3
Abstract:
The invention relates to a parking brake device (1; 1') for motor vehicles, comprising at least one compressed-air connection (10), an inlet venting-solenoid valve unit (20), a relay valve (40) and at least one first compressed-air outlet (71; 72), the compressed air connection (10) being connected to the inlet venting-solenoid valve unit (20) and the relay valve (40). A control line (41) is mounted such that the relay valve (40) is or can be connected to the inlet venting-solenoid valve unit (20), the control line (41) having a first branch (41a) and a second branch (41b) upstream of the relay valve (40), an outlet line (80) being provided that is connected to the at least one first compressed-air outlet (71; 72) and has an outlet branch (81). The parking brake device further has a spring brake line (51) that is connected to the control line (41) via the first branch (41a) and to the outlet line (80) via the outlet branch (81), and a trailer valve line (61) that is connected to the control line (41) via the second branch (41b). The parking brake device (1; 1') also comprises a spring brake valve (50) that is arranged in the spring brake line (51) and is connected to the relay valve (40), and a throttle unit (52) that is arranged in the spring brake line (51) between the outlet branch (81) of the outlet line (80) and the first branch (41a) of the control line (41).

Inventors:
SCHNITTGER KARSTEN (DE)
GRIESSER FABIAN (DE)
Application Number:
PCT/EP2019/065933
Publication Date:
February 27, 2020
Filing Date:
June 18, 2019
Export Citation:
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Assignee:
KNORR BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH (DE)
International Classes:
B60T13/68
Domestic Patent References:
WO2009098003A22009-08-13
WO2016169975A12016-10-27
WO2016169973A12016-10-27
Foreign References:
DE102015118290A12017-04-27
EP2199162A12010-06-23
EP1847432A22007-10-24
DE102013005896A12014-10-09
Attorney, Agent or Firm:
DTS PATENT- UND RECHTSANWÄLTE SCHNEKENBÜHL UND PARTNER MBB (DE)
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