JPS5960376U

JPS5960376U - Internal combustion engine negative pressure control valve

Info

Publication number: JPS5960376U
Application number: JP15597182U
Authority: JP
Inventors: 聖治菅
Original assignee: 厚木自動車部品株式会社
Priority date: 1982-10-15
Filing date: 1982-10-15
Publication date: 1984-04-20

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図は従来の負圧制御バルブを有する内燃機関の制御
システム図、第２図は同要部の拡大図、第３図は同分解
図、第４図は本考案の第１実施例の第２図と同様の図、
第５図は同要部の拡大図、第６図は来者ｉの第２実施例
の第４図と同様の図、第７図と第８図は同リップ部の立
り上がり状態を゛示す断面図、第９図と第１０図はバッ
キングの他の実施例を示す断面図である。３・・・吸気通路、４・・・スロットルバルブ１．７・
・・負圧制御バルブ、８・・・ボディ、ｆＪａ；　８ｂ
・・・開口端部、９・・・第１通路、１０・・・制御負
圧室、１１・・・第２通路、１２・・・一定員圧室、１
３・・・第１ダイヤフラム、１４・・・大気室、１５，
１６・・・負圧通路、１９．２０・・・制御負圧通路、
２２．２３・・・第２ダイ　　−ヤフラム、２２ａ、２
３ａ・・・バルブ、２２Ｃ，２３Ｃ・・・リテーナ、２
４．２５・・・ソレノイドケース、２４ａ、２５ａ・・
・開口端部、２６，２７・・・ソレノイド、２８．２９
・・・パツキーング、３０・・・リップ部。２８ｒ７Ｑ）４Ｑ９）Fig. 1 is a diagram of a control system for an internal combustion engine having a conventional negative pressure control valve, Fig. 2 is an enlarged view of the main parts, Fig. 3 is an exploded view of the same, and Fig. 4 is a diagram of the first embodiment of the present invention. A diagram similar to Figure 2,
Fig. 5 is an enlarged view of the same main part, Fig. 6 is a view similar to Fig. 4 of the second embodiment of Visitor i, and Figs. 7 and 8 show the rising state of the lip part. The sectional views shown in FIGS. 9 and 10 are sectional views showing other embodiments of the backing. 3...Intake passage, 4...Throttle valve 1.7.
...Negative pressure control valve, 8...Body, fJa; 8b
...Opening end, 9...First passage, 10...Control negative pressure chamber, 11...Second passage, 12...Constant occupancy pressure chamber, 1
3... first diaphragm, 14... atmospheric chamber, 15,
16... Negative pressure passage, 19.20... Control negative pressure passage,
22.23...Second diaphragm, 22a, 2
3a... Valve, 22C, 23C... Retainer, 2
4.25...Solenoid case, 24a, 25a...
・Open end, 26, 27...Solenoid, 28.29
...Patzkeing, 30...Lip part. 28r7Q) 4Q9)

Claims

[Scope of utility model registration request]

A control negative pressure chamber in which a first passage connected upstream of a throttle valve of an intake passage in an intake system of an internal combustion engine opens; a constant negative pressure chamber in which a second passage also connected downstream opens; an atmospheric chamber separated from the negative pressure chamber by a first diaphragm; a negative pressure passage that leads the negative pressure within the constant negative pressure chamber to the control negative pressure chamber; and a control negative pressure branching from the negative pressure passage. a body having a passage; a second diaphragm provided with a valve disposed opposite to the control negative pressure passage side opening end of the negative pressure passage and opening and closing the negative pressure passage opening end;
The second diaphragm is provided with a solenoid housed in a solenoid case that controls opening and closing operations of the diaphragm, and the second diaphragm is connected to an open end of the solenoid case and the open end via a retainer provided on the outer periphery of the second diaphragm. and an open end formed in the body corresponding to the part,
Furthermore, an annular backing is provided between the open end of the solenoid case and the open end of the body on the outer periphery of the retainer of the second diaphragm to seal an overlapping portion of these open ends. 1. A negative pressure control valve for an internal combustion engine, characterized in that the backing has a lip portion provided on an inner peripheral portion of the backing to press against the outer peripheral surface of the retainer of the diaphragm when the backing is in a sandwiched state.