JPH02115963U

JPH02115963U -

Info

Publication number: JPH02115963U
Application number: JP2479389U
Authority: JP
Priority date: 1989-03-06
Filing date: 1989-03-06
Publication date: 1990-09-17

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例による燃料噴射ポン
プ３０のデリバリバルブ９部分の要部縦断面図、
第２図は同、セツトスプリング部材３２の斜視図
、第３図は本考案の他の実施例による燃料噴射ポ
ンプ４０のデリバリバルブ９部分の要部縦断面図
、第４図は同、セツトスプリング部材４２の斜視
図、第５図は本考案のさらに他の実施例における
弁体部材５０の斜視図、第６図は従来の燃料噴射
ポンプ１のデリバリバルブ９部分の要部縦断面図
である。１……燃料噴射ポンプ、２……デリバリバルブ
ホルダ、３……燃料出口、４……噴射管、５……
噴射ノズル、６……燃料噴射ポンプ本体、７……
分配通路、８……デリバリバルブシート、９……
デリバリバルブ、１０……デリバリバルブ９のロ
ツド部、１１……デリバリバルブ９のシート部、
１２……デリバリバルブ９の円筒部、１３……羽
根部、１４……燃料吐出用通路、１５……等圧弁
ホルダ、１６……スプリグシート段部、１７……
スプリングストツパ、１８……デリバリバルブセ
ツトスプリング、１９……シート面、２０……等
圧弁、２１……等圧弁収納室、２２……燃料戻し
用通路、２３……ボールバルブ（弁体）、２４…
…等圧弁シート部、２５……オリフイス、２６…
…等圧弁スプリングシート、２７……等圧弁セツ
トスプリング、３０……燃料噴射ポンプ、３１…
…等圧弁装置、３２……セツトスプリング部材、
３３……吸戻し用通路、３４……吸戻し用連通路
、３５……シート用凹部、３６……シート用貫通
孔、４０……燃料噴射ポンプ、４１……等圧弁装
置、４２……セツトスプリング部材、４３……吸
戻し用連通路、５０……弁体部材、５１……弁体
部、Ｋ……かしめ部。 FIG. 1 is a vertical cross-sectional view of a main part of a delivery valve 9 portion of a fuel injection pump 30 according to an embodiment of the present invention;
2 is a perspective view of the set spring member 32, FIG. 3 is a vertical cross-sectional view of the main part of the delivery valve 9 portion of a fuel injection pump 40 according to another embodiment of the present invention, and FIG. 4 is a perspective view of the set spring member 32. FIG. 5 is a perspective view of a valve body member 50 in yet another embodiment of the present invention, and FIG. 6 is a longitudinal cross-sectional view of the main part of the delivery valve 9 portion of the conventional fuel injection pump 1. . 1...Fuel injection pump, 2...Delivery valve holder, 3...Fuel outlet, 4...Injection pipe, 5...
Injection nozzle, 6...Fuel injection pump body, 7...
Distribution passage, 8...Delivery valve seat, 9...
Delivery valve, 10... Rod portion of the delivery valve 9, 11... Seat portion of the delivery valve 9,
12... Cylindrical part of delivery valve 9, 13... Vane part, 14... Fuel discharge passage, 15... Equal pressure valve holder, 16... Sprig seat stepped part, 17...
Spring stopper, 18... Delivery valve set spring, 19... Seat surface, 20... Equal pressure valve, 21... Equal pressure valve storage chamber, 22... Fuel return passage, 23... Ball valve (valve body), 24...
... Equal pressure valve seat part, 25 ... Orifice, 26 ...
... Equal pressure valve spring seat, 27 ... Equal pressure valve set spring, 30 ... Fuel injection pump, 31 ...
... Equal pressure valve device, 32 ... Set spring member,
33... Suction back passage, 34... Suction back communication passage, 35... Seat recess, 36... Seat through hole, 40... Fuel injection pump, 41... Equal pressure valve device, 42... Set Spring member, 43... Suction-back communication path, 50... Valve body member, 51... Valve body part, K... Caulking part.

Claims

[Scope of Claim for Utility Model Registration] An equal pressure valve device provided in a delivery valve that opens and closes a fuel outlet of a fuel injection pump, the valve being located in an equal pressure valve housing chamber in the equal pressure valve device and seated in an equal pressure valve seat portion. An equal pressure valve device for a fuel injection pump, comprising a set spring member for supporting the valve body in the equal pressure valve storage chamber, and at least the set spring member is made of a columnar elastic body.