JPH01114976U

JPH01114976U -

Info

Publication number: JPH01114976U
Application number: JP954588U
Authority: JP
Priority date: 1988-01-29
Filing date: 1988-01-29
Publication date: 1989-08-02
Anticipated expiration: 2003-01-29
Also published as: JPH0729250Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る燃料供給装置の一実施例
の断面図、第２図はそれに用いられるプラグの正
面図、第３図は第２図の―断面図、第４図は
プラグの他の実施例の正面図、第５図は第４図の
―断面図、第６図は燃料供給管の接続拡大図
、第７図は従来例の説明図、第８図は他の従来例
の説明図、第９図は更に他の従来例の説明図であ
る。１……負圧導入管、２……ダイヤフラム、５…
…リターンパイプ、６……燃料供給管、７……テ
リバリパイプ、１２……バルブアセンブリ、１６
……燃料通路、１７……コネクタ、１９……プラ
グ、２２……燃料供給内管、２３……突起、２４
……開口。 Fig. 1 is a cross-sectional view of an embodiment of the fuel supply device according to the present invention, Fig. 2 is a front view of a plug used therein, Fig. 3 is a cross-sectional view of Fig. 2, and Fig. 4 is a cross-sectional view of the plug used therein. 5 is a cross-sectional view of FIG. 4, FIG. 6 is an enlarged view of the connection of the fuel supply pipe, FIG. 7 is an explanatory diagram of the conventional example, and FIG. 8 is an illustration of another conventional example. The explanatory diagram, FIG. 9, is an explanatory diagram of still another conventional example. 1...Negative pressure introduction pipe, 2...Diaphragm, 5...
... Return pipe, 6 ... Fuel supply pipe, 7 ... Delivery pipe, 12 ... Valve assembly, 16
... Fuel passage, 17 ... Connector, 19 ... Plug, 22 ... Fuel supply inner pipe, 23 ... Protrusion, 24
...Opening.

Claims

[Claims for Utility Model Registration] 1. A fuel supply device comprising a pressure regulating valve connected to a delivery pipe, which is separated by a diaphragm into a chamber having a negative pressure introduction pipe and a delivery pipe side, the central part of the diaphragm being connected to the delivery pipe. A valve assembly is disposed in the delivery pipe, a connector having a fuel passage is provided between the valve assembly and the return pipe, and a fuel supply pipe is installed near the return pipe, wherein the fuel supply inner pipe is disposed within the delivery pipe. one end of the inner fuel supply pipe is closed, the other end is supported on the end side of the delivery pipe, the inner fuel supply pipe is connected to the fuel supply pipe, and the other end is opened to the delivery pipe near the plug. A fuel supply device characterized by: 2. The fuel supply device according to claim 1, wherein one end of the inner fuel supply pipe is connected to a connector and closed. 3. The fuel supply device according to claim 1, wherein the delivery pipe and the fuel supply inner pipe, which are the attachment portions of the fuel supply pipe, are flow-drilled to connect the fuel supply pipe to the fuel supply inner pipe. 4. The fuel supply device according to claim 1, wherein a plurality of protrusions are formed on the plug into which the delivery pipe is fitted and brazed, and the other end of the inner fuel supply pipe is supported by the protrusions.