JPS54149002A - Gear pump - Google Patents

Gear pump

Info

Publication number
JPS54149002A
JPS54149002A JP5697178A JP5697178A JPS54149002A JP S54149002 A JPS54149002 A JP S54149002A JP 5697178 A JP5697178 A JP 5697178A JP 5697178 A JP5697178 A JP 5697178A JP S54149002 A JPS54149002 A JP S54149002A
Authority
JP
Japan
Prior art keywords
pressure
tooth space
discharge port
oil
oil pressure
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.)
Granted
Application number
JP5697178A
Other languages
Japanese (ja)
Other versions
JPS6146666B2 (en
Inventor
Hideo Teruyama
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.)
KYB Corp
Original Assignee
Kayaba Industry 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 Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP5697178A priority Critical patent/JPS54149002A/en
Publication of JPS54149002A publication Critical patent/JPS54149002A/en
Publication of JPS6146666B2 publication Critical patent/JPS6146666B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent errosion due to cavitation by raising the pressure in the tooth space nearly to the ejection pressure prior to the opening of the speed slot in the tooth space.
CONSTITUTION: Oil pressure drawn into suction port 19 by the rotation of gears 12 and 13 is discharge from discharge port 18, but low oil pressure drawn from suction port 19 enters the low pressure area via inlet 21. On the other hand, high pressure oil on the side of discharge port 18 enters the high pressure area and at the same time it adjusts, via speed slot 17, the pressure distributions between the side surfaces of gears 12 and 13 and bush 14. Further, small diameter hole 23 is formed on bush 14, and its other end is connected to the accumulator chamber. Consequently, the tooth space containing low oil pressure is maintained nearly at the same pressure as that on the side of discharge port 18 by the oil pressure of the accumulator chamber; and as a result, the pressure inside the tooth space is gradually raised.
COPYRIGHT: (C)1979,JPO&Japio
JP5697178A 1978-05-13 1978-05-13 Gear pump Granted JPS54149002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5697178A JPS54149002A (en) 1978-05-13 1978-05-13 Gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5697178A JPS54149002A (en) 1978-05-13 1978-05-13 Gear pump

Publications (2)

Publication Number Publication Date
JPS54149002A true JPS54149002A (en) 1979-11-21
JPS6146666B2 JPS6146666B2 (en) 1986-10-15

Family

ID=13042401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5697178A Granted JPS54149002A (en) 1978-05-13 1978-05-13 Gear pump

Country Status (1)

Country Link
JP (1) JPS54149002A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190488A (en) * 1983-04-11 1984-10-29 Tochigi Fuji Ind Co Ltd Gear pump
JPH0245670A (en) * 1988-08-05 1990-02-15 Niigata Converter Kk Low noise gear pump
EP2986854A1 (en) * 2013-04-17 2016-02-24 Nag-Bok Lim A silent gear pump or motor suppressing troubles of trapping fluid
CN110273834A (en) * 2018-03-16 2019-09-24 艾可勒科技公司 Gear fluids machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190488A (en) * 1983-04-11 1984-10-29 Tochigi Fuji Ind Co Ltd Gear pump
JPH0245670A (en) * 1988-08-05 1990-02-15 Niigata Converter Kk Low noise gear pump
EP2986854A1 (en) * 2013-04-17 2016-02-24 Nag-Bok Lim A silent gear pump or motor suppressing troubles of trapping fluid
EP2986854A4 (en) * 2013-04-17 2017-04-05 Nag-Bok Lim A silent gear pump or motor suppressing troubles of trapping fluid
US9945230B2 (en) 2013-04-17 2018-04-17 Nag-Bok Lim Silent gear pump or motor suppressing troubles of trapping fluid
CN110273834A (en) * 2018-03-16 2019-09-24 艾可勒科技公司 Gear fluids machine
CN110273834B (en) * 2018-03-16 2020-12-15 艾可勒科技公司 Gear wheel body machine

Also Published As

Publication number Publication date
JPS6146666B2 (en) 1986-10-15

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