JPS60134839U

JPS60134839U - Diesel engine fuel injection timing adjustment device

Info

Publication number: JPS60134839U
Application number: JP2317584U
Authority: JP
Inventors: 松尾　史朗
Original assignee: トヨタ自動車株式会社
Priority date: 1984-02-20
Filing date: 1984-02-20
Publication date: 1985-09-07

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、一部破断面とされたディーゼルエンジン用燃
料噴射ポンプの斜視図、第２図は、従来のディーゼルエ
ンジンの燃料噴射時期調整装置の縦断面図、第３図は、
第２図の燃料噴射時期調整装置の作動説明図、第４図は
、第２図のＩＶ−ＩＶ断面図、第５図は、第３図の■−
■断面図、第６図は、本考案の第１の実施例の縦断面図
、第７図は、第６図の燃料噴射時期調整装置の作動説明
図、第８図は、第６図の■−■断面図、第９図は、第７
図のＩＸ−ＩＸ断面図、第１０図は、本考案の第２の実
施例の縦断面図、第１１図は、第１θ図のＸＩ−ＸＩ断
面図である。３・・・ディーゼルエンジン用燃料噴射ポンプ、５　゛
・・・タイマ（ディーゼルエンジンの燃料噴射時期調整
装置）、１１・・・シリンダ、１２・・・ピストン、１
　　　　−３・・・第一の圧力室、１４・・・第二の圧
力室、１５・・・フィードポンプ、１６・・・圧縮コイ
ルばね、１７・・・　　　・フィードポンプの吸入側燃
料圧力の導入口。キ７　／２５　＼船′１２Ａｋ舵も１２透５８　　　第７図／２７２５１　　　　／ −Ｑや　ＩＪＩＪＩＩ）　　Ｉ　　ＪFIG. 1 is a perspective view of a diesel engine fuel injection pump with a partially broken surface, FIG. 2 is a longitudinal cross-sectional view of a conventional diesel engine fuel injection timing adjustment device, and FIG.
Fig. 2 is an explanatory diagram of the operation of the fuel injection timing adjustment device, Fig. 4 is a cross-sectional view taken along IV-IV in Fig. 2, and Fig. 5 is a -■-- in Fig. 3.
■Cross-sectional view, FIG. 6 is a vertical cross-sectional view of the first embodiment of the present invention, FIG. 7 is an explanatory diagram of the operation of the fuel injection timing adjustment device of FIG. 6, and FIG. ■-■ Cross-sectional view, Figure 9 is the 7th
FIG. 10 is a longitudinal sectional view of the second embodiment of the present invention, and FIG. 11 is a sectional view taken along XI-XI of FIG. 1θ. 3...Fuel injection pump for diesel engine, 5...Timer (fuel injection timing adjustment device for diesel engine), 11...Cylinder, 12...Piston, 1
-3...First pressure chamber, 14...Second pressure chamber, 15...Feed pump, 16...Compression coil spring, 17...・Introduction of fuel pressure on the suction side of the feed pump mouth. Ki7 /25 ＼ Ship'12Ak rudder also 12-through 5 8 Figure 7 /2725 1 / -Q and IJIJII) I J

Claims

[Scope of utility model registration request]

It has a cylinder whose both ends are closed, and a piston that is slidably inserted into the cylinder, and the interior of the cylinder is divided into a first pressure chamber and a second pressure chamber by the piston. A compression coil spring is disposed in the first pressure chamber to press the piston in a direction to increase the volume of the second pressure chamber, and a feed pump is disposed in the first pressure chamber. The fuel pressure on the suction side of the feed pump is introduced into the second pressure chamber, and the fuel pressure on the discharge side of the feed pump is introduced into the second pressure chamber. The fuel injection timing adjusting device is configured to change the fuel injection timing using the movement of the piston that occurs, and the inlet for the suction side fuel pressure of the feed pump in the first pressure chamber always maintains a constant effective flow. A fuel injection timing adjustment device for a diesel engine characterized by having a road cross-sectional area.