JPS565255A - Control valve spring of brake booster - Google Patents

Control valve spring of brake booster

Info

Publication number
JPS565255A
JPS565255A JP7810479A JP7810479A JPS565255A JP S565255 A JPS565255 A JP S565255A JP 7810479 A JP7810479 A JP 7810479A JP 7810479 A JP7810479 A JP 7810479A JP S565255 A JPS565255 A JP S565255A
Authority
JP
Japan
Prior art keywords
control valve
valve spring
push rod
brake booster
retainer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7810479A
Other languages
Japanese (ja)
Inventor
Chiaki Ochiai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP7810479A priority Critical patent/JPS565255A/en
Publication of JPS565255A publication Critical patent/JPS565255A/en
Pending legal-status Critical Current

Links

Landscapes

  • Braking Systems And Boosters (AREA)

Abstract

PURPOSE: To eliminate the tilt of a push rod and improve the feeling by fitting a cylindrical part in the inner diameter part of a retainer, as well as a conical part connected to the cylindrical part, in a control valve spring.
CONSTITUTION: A brake booster is constituted in such a manner that pedalling makes a push rod 23, an air valve 20 and a control valve 19 to move forward against a power piston 12, while communicating a rear chamber 15 with the open air through passages 12f and 26, a gap between valves 20 and 19, a passage 28 and filters 29, 30 and 32, thus the power piston 12 being made to move forward by the difference in pressure between the front and rear chambers 14 and 15. In the device, a control valve spring 22 is formed by a cylindrical part 38 fitted in the valve 19 and the inner diameter part of a retainer 21 and by a conical part 38a formed unitedly in the area of the part 38. And the rear part of the conical part 38a is engaged with the staged part 41 of the push rod 23.
COPYRIGHT: (C)1981,JPO&Japio
JP7810479A 1979-06-22 1979-06-22 Control valve spring of brake booster Pending JPS565255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7810479A JPS565255A (en) 1979-06-22 1979-06-22 Control valve spring of brake booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7810479A JPS565255A (en) 1979-06-22 1979-06-22 Control valve spring of brake booster

Publications (1)

Publication Number Publication Date
JPS565255A true JPS565255A (en) 1981-01-20

Family

ID=13652569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7810479A Pending JPS565255A (en) 1979-06-22 1979-06-22 Control valve spring of brake booster

Country Status (1)

Country Link
JP (1) JPS565255A (en)

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