JPH01179191U

JPH01179191U -

Info

Publication number: JPH01179191U
Application number: JP7474288U
Authority: JP
Priority date: 1988-06-07
Filing date: 1988-06-07
Publication date: 1989-12-22

Description

[Brief explanation of the drawing]

第１図は本考案によるブースターポンプ付高圧
ポンプの一例を示す要部構造断面図、第２図は第
１図の部拡大断面図、第３図ａ〜ｄは従来の高
圧ポンプのブースターポンプとの各配置例を示す
模式図である。１……高圧ポンプ、１′……高圧ポンプ吐出部
、２……ブースターポンプ、３，４……各主軸、
５……ケーシング、７……車室、８……駆動用羽
根車、１１……昇圧用羽根車、１２……高圧流体
供給管。 Fig. 1 is a cross-sectional view of the main structure of an example of a high-pressure pump with a booster pump according to the present invention, Fig. 2 is an enlarged cross-sectional view of a portion of Fig. 1, and Figs. It is a schematic diagram which shows each arrangement example. 1...High pressure pump, 1'...High pressure pump discharge part, 2...Booster pump, 3, 4...Each main shaft,
5... Casing, 7... Vehicle chamber, 8... Driving impeller, 11... Pressure boosting impeller, 12... High pressure fluid supply pipe.

Claims

[Scope of utility model registration request]

In a high-pressure pump such as a boiler feed pump that is equipped with a booster pump that pre-pressures fluid to increase suction pressure, the booster pump, which is directly connected to each impeller for driving and boosting, and the high-pressure pump are separated from each other by separating their respective main shafts. housed in the same casing, and between an appropriate position of the high-pressure pump discharge part and the casing of the driving impeller of the booster pump,
A high-pressure pump with a booster pump that connects high-pressure fluid supply pipes so that fluid that has been pressurized on the high-pressure pump side flows.