JPS56156485A - Gear pump or motor - Google Patents

Gear pump or motor

Info

Publication number
JPS56156485A
JPS56156485A JP5912680A JP5912680A JPS56156485A JP S56156485 A JPS56156485 A JP S56156485A JP 5912680 A JP5912680 A JP 5912680A JP 5912680 A JP5912680 A JP 5912680A JP S56156485 A JPS56156485 A JP S56156485A
Authority
JP
Japan
Prior art keywords
closing section
groove
delivery side
delivery
blocked
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
JP5912680A
Other languages
Japanese (ja)
Inventor
Masahiro Tsunemi
Yuji Kondo
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.)
Nabco Ltd
Original Assignee
Nabco 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 Nabco Ltd filed Critical Nabco Ltd
Priority to JP5912680A priority Critical patent/JPS56156485A/en
Publication of JPS56156485A publication Critical patent/JPS56156485A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

PURPOSE: To prevent the production of abnormally high and low pressure at the closing section, by connecting the closing section to the delivery and suction sides in the proximity where the difference of variation against the rotary angle of the closing section will become minimum during the claw rotation of a gear.
CONSTITUTION: Second small groove 14 having a tip 24 while extending from an edge 19 at the side of an driven gear g2 is provided to a groove 10, where said tip 24 is located between an operational line R and a tooth bottom h2 of the driven gear g2 such that it will connect between a figure S2 and the delivery side 2 until a figure S1 and the delivery side 2 are blocked. Since the figures S1, S2 are connected to the suction groove 15 when the figure and the delivery side are blocked, abnormally high and low pressure at the closing section and the noise can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP5912680A 1980-05-02 1980-05-02 Gear pump or motor Pending JPS56156485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5912680A JPS56156485A (en) 1980-05-02 1980-05-02 Gear pump or motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5912680A JPS56156485A (en) 1980-05-02 1980-05-02 Gear pump or motor

Publications (1)

Publication Number Publication Date
JPS56156485A true JPS56156485A (en) 1981-12-03

Family

ID=13104296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5912680A Pending JPS56156485A (en) 1980-05-02 1980-05-02 Gear pump or motor

Country Status (1)

Country Link
JP (1) JPS56156485A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332973A (en) * 2001-05-07 2002-11-22 Komatsu Ltd Groove shape of gear pump side plate
US20080166254A1 (en) * 2006-09-28 2008-07-10 Martin Jordan Hydraulic device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332973A (en) * 2001-05-07 2002-11-22 Komatsu Ltd Groove shape of gear pump side plate
JP4726324B2 (en) * 2001-05-07 2011-07-20 株式会社小松製作所 Groove shape of side plate of gear pump
US20080166254A1 (en) * 2006-09-28 2008-07-10 Martin Jordan Hydraulic device
US8512018B2 (en) * 2006-09-28 2013-08-20 Trw Automotive Gmbh Gear pump with pressure relief groove

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