Title:
【発明の名称】ブレーキブースタのジャンプ値の調整方法及びそのためのブレーキブースタ
Document Type and Number:
Japanese Patent JP3265380
Kind Code:
B2
Abstract:
The invention relates to a method for regulating the value of the jump (surge) of a servomotor for servo-assisted braking, in which servomotor are movably mounted a hollow servopiston (20) dividing the servomotor into a forward chamber (16) and a rear chamber (18), an actuating rod (30) urged towards the rear by a rod spring (42) and carrying a plunger (28) housed in the piston (20), the rear end of the plunger (28) forming a first annular valve seat (28a) which is concentric with a second annular valve seat (20a) carried by the servopiston (20), the first (28a) and second (20a) valve seats interacting with an annular valve (34) carried by the servopiston (20) and urged forward by a valve spring (38), a reaction disc (48) being interposed between an annular forward face (20b) of the servopiston (20) and a rear face of a push rod (46).
?>According to the invention, the method comprises the following steps:
- reducing the pressure in the forward chamber (16),
- loading the valve spring (38),
- applying to the push rod (46) a force equal to the servo force corresponding to the desired jump (surge) of the servomotor,
- bringing the forward face of the sensor (28) into contact with the rear face of the reaction disc (48),
- unloading the valve spring (38) until the first valve seat (28a) opens,
- loading the rod spring (42).
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Inventors:
Jean-Pierre Gautier
Application Number:
JP25416891A
Publication Date:
March 11, 2002
Filing Date:
September 06, 1991
Export Citation:
Assignee:
Bendix Woolope Servis Technique
International Classes:
B60T13/573; B60T13/57; B60T13/60; F15B9/12; (IPC1-7): B60T13/573; B60T13/57
Domestic Patent References:
JP4230466A | ||||
JP316867A | ||||
JP383167U | ||||
JP259065U | ||||
JP63130369U |
Attorney, Agent or Firm:
Katsuzo Asakura
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