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1. CN101466581 - Negative pressure booster

Office China
Application Number 200780021782.5
Application Date 11.06.2007
Publication Number 101466581
Publication Date 24.06.2009
Grant Number 101466581
Grant Date 13.03.2013
Publication Kind B
IPC
B60T 13/57
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
24the fluid being gaseous
46Vacuum systems
52indirect, i.e. vacuum booster units
57characterised by constructional features of control valves
B60T 13/573
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
24the fluid being gaseous
46Vacuum systems
52indirect, i.e. vacuum booster units
573characterised by reaction devices
CPC
B60T 13/575
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
24the fluid being gaseous
46Vacuum systems
52indirect, i.e. vacuum booster units
573characterised by reaction devices
575using resilient discs or pads
Applicants Bosch Corp.
博世株式会社
Inventors Watanabe Satoru
渡部悟
Agents wen dapeng
中国专利代理(香港)有限公司 72001
Priority Data 2006162236 12.06.2006 JP
Title
(EN) Negative pressure booster
(ZH) 负压增力装置
Abstract
(EN)
In operation of a negative pressure booster, a reaction disk (35) is deflected by reaction force from an output shaft (34) to press a pin (28) rearward and the pin (28) presses a vacuum valve seat member (21) rearward via an arm (25). Then, the vacuum valve seat member (21) knocks a valve body (15) rearward via a vacuum valve section (17), causing an atmosphere valve section (16) to move rearward relative to a valve body (4). Because an atmosphere valve (20) and a vacuum valve (23) move rearward, the stroke of an input shaft (11) is reduced. Also, when the valve body (15) is knocked rearward, the position of balance between the atmosphere valve (20) and the vacuum valve (23) moves rearward according to an output (input). This reduces the stroke of an input member when a large output is produced.

(ZH)

本发明的负压增力装置中,在动作时,反作用盘(35)通过来自输出轴(34)的反作用力挠曲而将销(28)向后方推压,销(28)经由臂(25)将真空阀座部件(21)向后方推压。于是,真空阀座部件(21)经由真空阀部(17)将阀体(15)向后方顶起,所以大气阀部(16)相对于阀身(4)向后方移动。这样,使输入轴(11)的行程缩短大气阀(20)及真空阀(23)向后方移动的量。此外,通过将阀体(15)向后方顶起,大气阀(20)及真空阀(23)的平衡位置对应于输出(输入)而向后方移动。由此,将产生较大的输出时的输入部件的行程缩短。