JPS6072977U - Pressure boosting unit injector rotary valve device - Google Patents

Pressure boosting unit injector rotary valve device

Info

Publication number
JPS6072977U
JPS6072977U JP16462383U JP16462383U JPS6072977U JP S6072977 U JPS6072977 U JP S6072977U JP 16462383 U JP16462383 U JP 16462383U JP 16462383 U JP16462383 U JP 16462383U JP S6072977 U JPS6072977 U JP S6072977U
Authority
JP
Japan
Prior art keywords
rotary valve
port
pressure
boosting unit
valve device
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.)
Granted
Application number
JP16462383U
Other languages
Japanese (ja)
Other versions
JPS6338359Y2 (en
Inventor
木沢　宏史
Original Assignee
株式会社小松製作所
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 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP16462383U priority Critical patent/JPS6072977U/en
Priority to DE19843438965 priority patent/DE3438965A1/en
Priority to US06/664,719 priority patent/US4677953A/en
Publication of JPS6072977U publication Critical patent/JPS6072977U/en
Application granted granted Critical
Publication of JPS6338359Y2 publication Critical patent/JPS6338359Y2/ja
Granted legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は燃料噴射装置の構成説明図、第２区はエンジン
回転数と噴射量との関係図、第３図は従来のロータリバ
ルブのスプールの展開図、第４図・は本考案−実施例に
係るロータリバルブのスプールの展開図である。 ６はロータリバルブ、７はポート、７′は高圧ポート、
１２は圧抜きポート、１４はスプール。Figure 1 is an explanatory diagram of the configuration of the fuel injection device, Section 2 is a diagram of the relationship between engine speed and injection amount, Figure 3 is an exploded view of the spool of a conventional rotary valve, and Figure 4 is the present invention-implementation. FIG. 3 is a developed view of a spool of a rotary valve according to an example. 6 is a rotary valve, 7 is a port, 7' is a high pressure port,
12 is a pressure relief port, and 14 is a spool.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンのカム軸に同期して駆動されて高圧燃料を各イ
ンジェクタに分配供給するロータリバルブ６を備えたも
のにおいて、ロータリバルブ６のスプール１４に高圧ポ
ート７′と調量溝より成るポート７との他に、高圧ポー
ト７′とポート７との中間部分に調量行程に入る前の送
油管４およびインジェクタの上部圧力室５の作動油を一
部逃がす圧抜きポート１２を設けたことを特徴とする増
圧式ユニットインジェクタのロータリバルブ装置。In a device equipped with a rotary valve 6 that is driven in synchronization with the engine camshaft and distributes high-pressure fuel to each injector, the spool 14 of the rotary valve 6 has a high-pressure port 7' and a port 7 consisting of a metering groove. Another feature is that a pressure relief port 12 is provided in the intermediate portion between the high pressure port 7' and the port 7 to partially release the hydraulic oil in the oil feed pipe 4 and the upper pressure chamber 5 of the injector before entering the metering stroke. Rotary valve device for pressure boosting unit injector.
JP16462383U 1983-10-26 1983-10-26 Pressure boosting unit injector rotary valve device Granted JPS6072977U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16462383U JPS6072977U (en) 1983-10-26 1983-10-26 Pressure boosting unit injector rotary valve device
DE19843438965 DE3438965A1 (en) 1983-10-26 1984-10-24 FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
US06/664,719 US4677953A (en) 1983-10-26 1984-10-25 Fuel injection system for internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16462383U JPS6072977U (en) 1983-10-26 1983-10-26 Pressure boosting unit injector rotary valve device

Publications (2)

Publication Number Publication Date
JPS6072977U true JPS6072977U (en) 1985-05-22
JPS6338359Y2 JPS6338359Y2 (en) 1988-10-11

Family

ID=30360872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16462383U Granted JPS6072977U (en) 1983-10-26 1983-10-26 Pressure boosting unit injector rotary valve device

Country Status (1)

Country Link
JP (1) JPS6072977U (en)

Also Published As

Publication number Publication date
JPS6338359Y2 (en) 1988-10-11

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