JPH0481869U

JPH0481869U -

Info

Publication number: JPH0481869U
Application number: JP12585090U
Authority: JP
Priority date: 1990-11-28
Filing date: 1990-11-28
Publication date: 1992-07-16
Anticipated expiration: 2005-11-28
Also published as: JP2527756Y2

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示す断面図である。１……フロントシエル、２……リヤシエル、３
……センタープレート、４……フロント室、５…
…リヤ室、６……バルブボデイ、６ｈ……フラン
ジ部、６ｈ′……リヤ側端面、９……フロントパ
ワーピストン、１０……リヤパワーピストン、１
１……フロントダイアフラム、１２……リヤダイ
アフラム、２１，２３……定圧通路、２６，２７
……変圧通路、Ａ，Ｃ……定圧室、Ｂ，Ｄ……変
圧室。 The figure is a sectional view showing an embodiment of the present invention. 1...Front shell, 2...Rear shell, 3
...Center plate, 4...Front chamber, 5...
...Rear chamber, 6... Valve body, 6h... Flange portion, 6h'... Rear side end surface, 9... Front power piston, 10... Rear power piston, 1
1... Front diaphragm, 12... Rear diaphragm, 21, 23... Constant pressure passage, 26, 27
... Variable pressure passage, A, C... Constant pressure chamber, B, D... Variable pressure room.

Claims

[Scope of Claim for Utility Model Registration] A center plate that divides the inside of the shell into a front chamber and a rear chamber, a valve body that slidably penetrates the center plate while maintaining airtightness, and a valve body that is located in the front chamber. A front power piston attached to the valve body, a rear power piston attached to the valve body located in the rear chamber, and a front diaphragm stretched over the back of the front power piston and dividing the front chamber into a constant pressure chamber and a variable pressure chamber. a rear diaphragm that is stretched over the back of the rear power piston and divides the rear chamber into a constant pressure chamber and a variable pressure chamber; and a rear diaphragm that is formed on the valve body and communicates the constant pressure chamber of the front chamber and the constant pressure chamber of the rear chamber. and a variable pressure passage formed in the valve body to communicate the variable pressure chamber of the front chamber and the variable pressure chamber of the rear chamber, a flange portion is formed at the front end of the valve body, In the tandem booster, the front power piston is connected by abutting the inner circumferential edge of the front power piston against the rear end surface of the valve body, and the front end of the variable pressure passage is connected to the rear end surface of the flange portion of the valve body. A tandem booster characterized by being opened.