JPS56101090A - Gear pump - Google Patents

Gear pump

Info

Publication number
JPS56101090A
JPS56101090A JP397680A JP397680A JPS56101090A JP S56101090 A JPS56101090 A JP S56101090A JP 397680 A JP397680 A JP 397680A JP 397680 A JP397680 A JP 397680A JP S56101090 A JPS56101090 A JP S56101090A
Authority
JP
Japan
Prior art keywords
pump
pump gear
gear
side faces
small
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
JP397680A
Other languages
Japanese (ja)
Other versions
JPS633157B2 (en
Inventor
Rikiya Yasuda
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.)
Tokyo Buhin Kogyo Co Ltd
Original Assignee
Tokyo Buhin Kogyo 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 Tokyo Buhin Kogyo Co Ltd filed Critical Tokyo Buhin Kogyo Co Ltd
Priority to JP397680A priority Critical patent/JPS56101090A/en
Publication of JPS56101090A publication Critical patent/JPS56101090A/en
Publication of JPS633157B2 publication Critical patent/JPS633157B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rotary Pumps (AREA)

Abstract

PURPOSE: To contrive to make the pump small by forming grooves on side faces which come in sliding-contact with a casing and a pump gear of a cover, making an influence of a centrifugal force by the pump gear of a liquid induced from the intake to the side faces comparatively small and increasing a peripheral speed of the pump gear.
CONSTITUTION: The grooves 4 and 5 are formed on the side faces 1a, 2a coming in sliding-contact with the casing 1 and the pump gear 3 of the cover, and the large diameters 13 thereof respectively are made smaller than the outer diameter of the pump gear 3 and the small diameters 14 are made smaller than a gear bottom diameter. Whereby since the liquid induced from the intake 9 to the side faces 1a, 2a can make the influence by the centrifugal force of the pump gear 3 comparatively small, the peripheral speed of the pump gear 3 can be increased in large, and accordingly, the pump can be made small and low cost. Further, the grooves 4, 5 are formed at the positions corresponding to two times the norma-pitch of the pump gear 3 from a position 11 where the teeth of the pump gear 3 are released at a discharge port 10 of the casing 1, thereby enabling a volumetric efficiency of the pump to be prevented from falling.
COPYRIGHT: (C)1981,JPO&Japio
JP397680A 1980-01-16 1980-01-16 Gear pump Granted JPS56101090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP397680A JPS56101090A (en) 1980-01-16 1980-01-16 Gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP397680A JPS56101090A (en) 1980-01-16 1980-01-16 Gear pump

Publications (2)

Publication Number Publication Date
JPS56101090A true JPS56101090A (en) 1981-08-13
JPS633157B2 JPS633157B2 (en) 1988-01-22

Family

ID=11572080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP397680A Granted JPS56101090A (en) 1980-01-16 1980-01-16 Gear pump

Country Status (1)

Country Link
JP (1) JPS56101090A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462383U (en) * 1990-10-05 1992-05-28
WO2016147217A1 (en) * 2015-03-17 2016-09-22 株式会社Tbk Gear pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462383U (en) * 1990-10-05 1992-05-28
WO2016147217A1 (en) * 2015-03-17 2016-09-22 株式会社Tbk Gear pump

Also Published As

Publication number Publication date
JPS633157B2 (en) 1988-01-22

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