JPH0212063U

JPH0212063U -

Info

Publication number: JPH0212063U
Application number: JP8975688U
Authority: JP
Priority date: 1988-07-05
Filing date: 1988-07-05
Publication date: 1990-01-25

Description

[Brief explanation of drawings]

第１図は第１実施例の要部の縦断正面図を示す
。第２図は第２実施例の要部の縦断正面図を示す
。第３図は従来の燃料噴射ポンプの縦断正面図を
示す。第４図は第３図のＡ部、すなわちパイロツ
ト噴射ポンプの縦断正面図を示す。１……燃料噴射ポンプ、１ａ……燃料噴射ポン
プ本体、２……パイロツト噴射装置、４……高圧
室、５……シリンダ、６……アキユムレートピス
トン、７……スプリング、８……ストツパ、１０
……Ｏリング、１１……ガスケツト、２１……小
孔、２４……連結部材。 FIG. 1 shows a longitudinal sectional front view of the main parts of the first embodiment. FIG. 2 shows a longitudinal sectional front view of the main parts of the second embodiment. FIG. 3 shows a longitudinal sectional front view of a conventional fuel injection pump. FIG. 4 shows section A in FIG. 3, that is, a longitudinal sectional front view of the pilot injection pump. DESCRIPTION OF SYMBOLS 1...Fuel injection pump, 1a...Fuel injection pump main body, 2...Pilot injection device, 4...High pressure chamber, 5...Cylinder, 6...Accumulate piston, 7...Spring, 8...Stopper , 10
... O-ring, 11 ... gasket, 21 ... small hole, 24 ... connection member.

Claims

[Scope of utility model registration request]

A fuel injection pump main body including a high pressure chamber, a high pressure sealing member having a small hole communicating with the high pressure chamber, a cylinder communicating with the small hole through a throttle, and an aquimum movably housed in the cylinder and opening and closing the throttle. A fuel injection pump having a pilot injection device comprising a rate piston, a spring that urges the accumulation piston toward the high pressure chamber, and a stopper that restricts movement of the accumulation piston toward the side opposite to the high pressure chamber. A pilot injection device for a fuel injection pump, characterized in that a sealing member is oil-tightly attached to a fuel injection pump body, and a pilot injection device is removably and oiltightly connected to a high-pressure sealing member.