JPS5683589A - Gear pump - Google Patents

Gear pump

Info

Publication number
JPS5683589A
JPS5683589A JP16025979A JP16025979A JPS5683589A JP S5683589 A JPS5683589 A JP S5683589A JP 16025979 A JP16025979 A JP 16025979A JP 16025979 A JP16025979 A JP 16025979A JP S5683589 A JPS5683589 A JP S5683589A
Authority
JP
Japan
Prior art keywords
gear tooth
mesh
gear
pump
outlet side
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
JP16025979A
Other languages
Japanese (ja)
Inventor
Ryukichi Araki
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.)
Uchida Oil Hydraulics Mfg Co Ltd
Original Assignee
Uchida Oil Hydraulics Mfg 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 Uchida Oil Hydraulics Mfg Co Ltd filed Critical Uchida Oil Hydraulics Mfg Co Ltd
Priority to JP16025979A priority Critical patent/JPS5683589A/en
Publication of JPS5683589A publication Critical patent/JPS5683589A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE: To enable to discharge fluid intermittently with no use of a selector valve, by cutting off a portion of a gear tooth of a gear shaft along the width thereof so that the outlet side and the inlet side of the pump are communicated to each other when the gear tooth is in mesh with a mating gear tooth.
CONSTITUTION: At least one gear tooth 5 or 6 of a pair of gear shafts 3, 4 of a gear pump 2, which are held in mesh with each other, is cut off along the width of the gear tooth leaving a portion that can be brought into mesh with a mating gear tooth for transmitting rotation of the gears. When the gear tooth comes into mesh with the mating gear tooth, the outlet side and the high-pressure side of the pump are communicated to each other, so that high-pressure fluid is discharged intermittently to the outlet side. Thus, it is enabled to dischage high-pressure fluid at a high cycle with no use of a selector valve.
COPYRIGHT: (C)1981,JPO&Japio
JP16025979A 1979-12-12 1979-12-12 Gear pump Pending JPS5683589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16025979A JPS5683589A (en) 1979-12-12 1979-12-12 Gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16025979A JPS5683589A (en) 1979-12-12 1979-12-12 Gear pump

Publications (1)

Publication Number Publication Date
JPS5683589A true JPS5683589A (en) 1981-07-08

Family

ID=15711131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16025979A Pending JPS5683589A (en) 1979-12-12 1979-12-12 Gear pump

Country Status (1)

Country Link
JP (1) JPS5683589A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130243636A1 (en) * 2012-03-19 2013-09-19 Hitachi, Ltd Fuel pump for an internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130243636A1 (en) * 2012-03-19 2013-09-19 Hitachi, Ltd Fuel pump for an internal combustion engine
EP2642124A1 (en) * 2012-03-19 2013-09-25 Hitachi Ltd. Fuel pump for an internal combustion engine
JP2013194731A (en) * 2012-03-19 2013-09-30 Hitachi Ltd Fuel pump for internal combustion engine
US9562504B2 (en) 2012-03-19 2017-02-07 Hitachi, Ltd Fuel pump for an internal combustion engine

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