JPS6331256U

JPS6331256U -

Info

Publication number: JPS6331256U
Application number: JP12538386U
Authority: JP
Priority date: 1986-08-16
Filing date: 1986-08-16
Publication date: 1988-02-29

Description

[Brief explanation of the drawing]

第１図は燃料流路及び切換コツク取付側面図、
第２図は切換コツクの正規流路の弁部断面図、第
３図は切換コツクの燃料戻り流路の弁部断面図、
第４図は直列４サイクルデイーゼルエンジンの気
筒数、クランク配置、点火順序図。１……ノズルホルダー、２……フユーエルタン
ク、３……インジエクシヨンポンプ、４……フエ
ーエルフイードポンプ、５……フユーエルフイル
ター、６……切換レバー、７……切換コツク、８
……切換コツク、９……戻り流路用パイプ、１０
……ジヨイントボルト、１１……戻り流路本管、
１２……インジエクシヨンパイプ、１３……切換
コツク弁、１４……締付ナツト、１５……連結ナ
ツト、１６……パイプ連結ナツト、１７……パイ
プ連結ナツト、１８……デリバリバルブホルダー
、２１……エルボナツト、２２……接続エルボ、
２３……戻しパイプ。 Figure 1 is a side view of the fuel flow path and switching cock installation.
Figure 2 is a cross-sectional view of the valve part of the normal flow path of the switching cock, and Figure 3 is a cross-sectional view of the valve part of the fuel return flow path of the switching cock.
Figure 4 shows the number of cylinders, crank arrangement, and ignition order of an in-line 4-stroke diesel engine. 1...Nozzle holder, 2...Fuel tank, 3...Injection pump, 4...Fuel feed pump, 5...Fuel filter, 6...Switching lever, 7...Switching knob, 8
...Switching tip, 9...Return flow path pipe, 10
...Joint bolt, 11...Return flow path main,
12... Injection extension pipe, 13... Switching valve, 14... Tightening nut, 15... Connection nut, 16... Pipe connection nut, 17... Pipe connection nut, 18... Delivery valve holder, 21 ...Elbow nut, 22...Connection elbow,
23...Return pipe.

Claims

[Scope of utility model registration request]

In-line 4-stroke diesel engines used in medium-sized trucks (6 cylinders) and above, the injection extension pipes that send high-pressure fuel from the fuel injection device to the injection nozzles (6 cylinders for 6-cylinder cars, 8 for 8-cylinder cars) This device is characterized by a reduction in fuel consumption by attaching switching fuel return pipes to two of the pipes (of which there are books), and operating the switching lever in the fuel return direction during operation with low engine load to return the fuel to the fuel tank. It is.