JPS6261998U

JPS6261998U -

Info

Publication number: JPS6261998U
Application number: JP15374685U
Authority: JP
Priority date: 1985-10-09
Filing date: 1985-10-09
Publication date: 1987-04-17

Description

[Brief explanation of the drawing]

第１図は本考案のジエツトポンプの一実施例の
縦断面図、第２図は第１図のジエツトポンプを組
み込んだ車両用燃料供給装置の概略図、第３図は
本考案のジエツトポンプに対する比較例としての
ジエツトポンプの縦断面図、である。１０……ジエツトポンプ、１２……入口管、１
４……ノズル、１６……入口部、２０……噴孔、
２２……吐出部、２４……ベンチユリ管、２６…
…負圧室、２８……ベンチユリ、３０……拡開部
、３２……吐出口、３４……吸い込み管。 Fig. 1 is a longitudinal sectional view of an embodiment of the jet pump of the present invention, Fig. 2 is a schematic diagram of a vehicle fuel supply system incorporating the jet pump of Fig. 1, and Fig. 3 is a comparative example of the jet pump of the present invention. FIG. 10...Jet pump, 12...Inlet pipe, 1
4... Nozzle, 16... Inlet section, 20... Nozzle hole,
22... Discharge part, 24... Bench lily pipe, 26...
... Negative pressure chamber, 28 ... Bench lily, 30 ... Expansion section, 32 ... Discharge port, 34 ... Suction pipe.

Claims

[Scope of claims for utility model registration] (1) An inlet pipe, a nozzle communicating with the inlet pipe,
a negative pressure chamber surrounding at least the tip of the nozzle; a bench lily communicating with the negative pressure chamber and located in front of the nozzle hole of the nozzle; and a vent lily pipe having a discharge port communicating with the widening part of the bench lily. , a jet pump comprising a suction pipe communicating with the negative pressure chamber, wherein the inlet pipe and the nozzle are integrally formed as a single part to constitute an inlet portion, and the bench lily pipe and the suction pipe are integrally formed. 1. A jet pump, characterized in that the jet pump is formed as a single part and constitutes a discharge section, and the inlet section and the discharge section are assembled and coupled in a fluid-tight manner. (2) The jet pump according to claim 1, wherein the inlet portion and the discharge portion are each molded from a thermoplastic resin and welded to each other.