JPS53119404A - Drain oil expeller in hydraulic pump motor - Google Patents

Drain oil expeller in hydraulic pump motor

Info

Publication number
JPS53119404A
JPS53119404A JP3427377A JP3427377A JPS53119404A JP S53119404 A JPS53119404 A JP S53119404A JP 3427377 A JP3427377 A JP 3427377A JP 3427377 A JP3427377 A JP 3427377A JP S53119404 A JPS53119404 A JP S53119404A
Authority
JP
Japan
Prior art keywords
hydraulic pump
pump motor
drain oil
oil expeller
motor
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
JP3427377A
Other languages
Japanese (ja)
Inventor
Tomohiko Yasuoka
Masahiko Shimotori
Yasuharu Goto
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 JP3427377A priority Critical patent/JPS53119404A/en
Publication of JPS53119404A publication Critical patent/JPS53119404A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

PURPOSE: With an auxiliary pump provided co-axially with a hydraulic pump motor, drain oil in a pump casing is forcibly expelled in order to minimize oil stirring loss and to enhance the motor performance.
COPYRIGHT: (C)1978,JPO&Japio
JP3427377A 1977-03-28 1977-03-28 Drain oil expeller in hydraulic pump motor Pending JPS53119404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3427377A JPS53119404A (en) 1977-03-28 1977-03-28 Drain oil expeller in hydraulic pump motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3427377A JPS53119404A (en) 1977-03-28 1977-03-28 Drain oil expeller in hydraulic pump motor

Publications (1)

Publication Number Publication Date
JPS53119404A true JPS53119404A (en) 1978-10-18

Family

ID=12409544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3427377A Pending JPS53119404A (en) 1977-03-28 1977-03-28 Drain oil expeller in hydraulic pump motor

Country Status (1)

Country Link
JP (1) JPS53119404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876495B2 (en) 2010-12-29 2014-11-04 Eaton Corporation Case flow augmenting arrangement for cooling variable speed electric motor-pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876495B2 (en) 2010-12-29 2014-11-04 Eaton Corporation Case flow augmenting arrangement for cooling variable speed electric motor-pumps

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