JPS5656984A - Multiply-connected pump - Google Patents

Multiply-connected pump

Info

Publication number
JPS5656984A
JPS5656984A JP13179879A JP13179879A JPS5656984A JP S5656984 A JPS5656984 A JP S5656984A JP 13179879 A JP13179879 A JP 13179879A JP 13179879 A JP13179879 A JP 13179879A JP S5656984 A JPS5656984 A JP S5656984A
Authority
JP
Japan
Prior art keywords
piston
oil passage
force
pump
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13179879A
Other languages
Japanese (ja)
Inventor
Kunihiko Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP13179879A priority Critical patent/JPS5656984A/en
Publication of JPS5656984A publication Critical patent/JPS5656984A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To prolong the durability of pumps by causing a pump casing to support both ends of the piston to receive the force acting on the rotor and the piston.
CONSTITUTION: When a driving shaft 25 is rotated, a rotor 23 is rotated through a driven gear. In the first pump, each cylinder chamber 33 is communicated with a suction oil passage 42 or an exhaust oil passage through a control hole 44 in a successively changing over manner. In the second pump, each cylinder chamber 34 is communicated with a suction oil passage or an exhaust oil passage in a successively changing over manner, thus the pumping operation being performed. A large force in the radial direction acts on the rotor 23, and this force is also applied to the piston 22. However, since both ends of the piston 22 are supported by the pump casing 21, that force is received thereby, thus the life of the pumps being prolonged.
COPYRIGHT: (C)1981,JPO&Japio
JP13179879A 1979-10-15 1979-10-15 Multiply-connected pump Pending JPS5656984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13179879A JPS5656984A (en) 1979-10-15 1979-10-15 Multiply-connected pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13179879A JPS5656984A (en) 1979-10-15 1979-10-15 Multiply-connected pump

Publications (1)

Publication Number Publication Date
JPS5656984A true JPS5656984A (en) 1981-05-19

Family

ID=15066357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13179879A Pending JPS5656984A (en) 1979-10-15 1979-10-15 Multiply-connected pump

Country Status (1)

Country Link
JP (1) JPS5656984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016200052A (en) * 2015-04-09 2016-12-01 ナブテスコ株式会社 Hydraulic motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016200052A (en) * 2015-04-09 2016-12-01 ナブテスコ株式会社 Hydraulic motor

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