JPS593071U

JPS593071U - fuel check valve

Info

Publication number: JPS593071U
Application number: JP9832382U
Authority: JP
Inventors: 一弘宮本
Original assignee: 株式会社土屋製作所
Priority date: 1982-06-30
Filing date: 1982-06-30
Publication date: 1984-01-10

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のツユエルチェックバルブ、第２図は本考
案によるカバーの底面図、第３図は本考　　。案の説明用一部拡大縦断面図。１・・・ケーシング、２・・・カバー、４・・・平端面
、６・・・ボデー、１０・・・ツユエルチェックバルブ
、１１・・・加圧バルブ、１２・・・リップ先部、１４
・・・負圧バルブ、１７・・・スプリング、１８．１９
・・・内外周溶着部、２０・・・弗素樹脂層。Figure 1 shows a conventional twerk check valve, Figure 2 shows a bottom view of the cover according to the present invention, and Figure 3 shows the present invention. A partially enlarged vertical sectional view for explaining the plan. DESCRIPTION OF SYMBOLS 1...Casing, 2...Cover, 4...Flat end face, 6...Body, 10...Tsuel check valve, 11...Pressure valve, 12...Lip tip, 14
... Negative pressure valve, 17... Spring, 18.19
...Inner and outer peripheral welded parts, 20...Fluororesin layer.

Claims

[Scope of utility model registration request]

A pressure valve and a negative pressure valve are installed on the inlet vibe side inside a casing that is airtightly fixed to a disc-shaped cover with an inlet vibe in the center and a cylindrical body with an outlet vibe in the bottom. In a spring check valve that houses a retainer and a spring that urges the retainer toward the inlet vibrator, a thin annular fluororesin film is attached to the flat end surface of the cover that contacts the tip of the lip of the pressurizing vane lever. A double check valve characterized in that a layer is provided, and the inner and outer peripheries of the fluororesin layer are welded to the flat end surface of the cover.