JPH02101046U

JPH02101046U -

Info

Publication number: JPH02101046U
Application number: JP1026089U
Authority: JP
Priority date: 1989-01-30
Filing date: 1989-01-30
Publication date: 1990-08-10
Anticipated expiration: 2004-01-30
Also published as: JP2521716Y2

Description

[Brief explanation of drawings]

第１図から第８図は本考案の実施例を示してい
る。第１図から第５図は第１実施例を示し、第１
図は、第２図の−線矢視断面図、第２図はデ
イーゼルエンジンの燃料噴射ポンプ取付け部分の
縦断面図、第３図は、第２図の−線矢視図、
第４図は第１図の要部拡大模式図で、第５図は制
御ブロツク図である。第６図と第７図は第２実施
例を示し、第６図は第３図相当図、第７図は、第
６図の−線矢視断面図である。第８図は、別
の実施例を示し、燃料噴射ポンプの噴射時期較正
手段の作動説明図である。１……デイーゼルエンジン、５……燃料噴射ポ
ンプ、７……プランジヤ、１８……コントロール
スリーブ、１９……コントロールロツド、１９ａ
……ロツド入力部、１９ｂ……ロツド出力部、２
０……アクチユエータ、２０ａ……出力部、２２
……スリーブ入力部、２３……ポンプケース、２
７，２８……規制具、Ａ……ロツド軸心、Ｔ……
プレストローク調節力伝達系統、Ｘａ……許容最
小プレストローク位置、Ｙａ……許容最大プレス
トローク位置。 1 to 8 show embodiments of the invention. Figures 1 to 5 show a first embodiment;
The figure is a sectional view taken along the - line in Fig. 2, Fig. 2 is a longitudinal sectional view of the fuel injection pump attachment part of the diesel engine, and Fig. 3 is a - sectional view taken along the - line in Fig. 2.
FIG. 4 is an enlarged schematic diagram of the main part of FIG. 1, and FIG. 5 is a control block diagram. 6 and 7 show a second embodiment, FIG. 6 is a view corresponding to FIG. 3, and FIG. 7 is a cross-sectional view taken along the - line in FIG. 6. FIG. 8 shows another embodiment and is an explanatory diagram of the operation of the injection timing calibration means of the fuel injection pump. 1... Diesel engine, 5... Fuel injection pump, 7... Plunger, 18... Control sleeve, 19... Control rod, 19a
... Rod input section, 19b... Rod output section, 2
0...actuator, 20a...output section, 22
... Sleeve input section, 23 ... Pump case, 2
7, 28...Restrictor, A...Rod shaft center, T...
Pre-stroke adjustment force transmission system, Xa...Minimum allowable pre-stroke position, Ya...Maximum allowable pre-stroke position.

Claims

[Scope of claim for utility model registration] The fuel injection pump 5 of the diesel engine 1,
Control sleeve 18, control rod 19, which adjusts the pre-stroke of plunger 7.
and an actuator 20, the control sleeve 18 is fitted to the outer peripheral surface of the plunger 7 so as to be able to reciprocate in the axial direction, and a sleeve input portion 22 for movement operation is formed at an eccentric position of the control sleeve 18. The rod 19 is arranged in a direction substantially perpendicular to the plunger 7 on a different plane, and is supported to be able to reciprocate and swing about the rod axis A with respect to the pump case 23, so that the rod input of the control rod 19 is possible. Part 19a
is interlocked and connected to the output part 20a of the actuator 20, and a rod output part 19b provided eccentrically on the control rod 19 is connected to the control sleeve 18.
By swinging the control rod 19 around the rod axis A with the output part 20a of the actuator 20, the control sleeve 18 is reciprocated with the rod output part 19b, and the plunger 7 is connected to the sleeve input part 22 of the actuator 20.
In the pre-stroke adjusting device for a fuel injection pump of a diesel engine configured to adjust the pre-stroke of a fuel injection pump, the control sleeve 1
A restrictor 27 that sets the minimum allowable prestroke position Xa of 8 and the maximum allowable prestroke position Ya.
A pre-stroke adjustment device for a fuel injection pump of a diesel engine, characterized in that a regulating device 28 is provided for setting the prestroke of a fuel injection pump of a diesel engine.