US3873252A - Gear pump and motor - Google Patents

Gear pump and motor Download PDF

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Publication number
US3873252A
US3873252A US377965A US37796573A US3873252A US 3873252 A US3873252 A US 3873252A US 377965 A US377965 A US 377965A US 37796573 A US37796573 A US 37796573A US 3873252 A US3873252 A US 3873252A
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US
United States
Prior art keywords
aperture
communication
port
motor
gears
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.)
Expired - Lifetime
Application number
US377965A
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English (en)
Inventor
Mitsuteru Motomura
Masayuki Futamata
Kazuyuki Hirose
Kazuo Ban
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
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Publication of US3873252A publication Critical patent/US3873252A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F01C1/18—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms

Definitions

  • FIG. 3 is a schematic view, partly in section, of one embodiment of a gear pump and motor constructed according to the present invention and showing its cooperative parts;
  • FIG. 11 is a view similar to that of FIG. 3 showing however yet another embodiment of a gear pump and motor constructed according to the present invention and showing its cooperative parts;
  • FIG. 14 is a schematic view of a further embodiment of a gear pump and motor constructed according to the present invention and showing its cooperative parts;
  • FIG. 17 is a view similar to that of FIG. 16 showing however the gear pump and motor under low speed operative conditions;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Fluid-Pressure Circuits (AREA)
US377965A 1972-07-11 1973-07-10 Gear pump and motor Expired - Lifetime US3873252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47068693A JPS5132783B2 (cs) 1972-07-11 1972-07-11

Publications (1)

Publication Number Publication Date
US3873252A true US3873252A (en) 1975-03-25

Family

ID=13381080

Family Applications (1)

Application Number Title Priority Date Filing Date
US377965A Expired - Lifetime US3873252A (en) 1972-07-11 1973-07-10 Gear pump and motor

Country Status (2)

Country Link
US (1) US3873252A (cs)
JP (1) JPS5132783B2 (cs)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201735A (en) * 1987-03-04 1988-09-07 Stal Refrigeration Ab A control system for a rotary compressor
GB2238579A (en) * 1989-11-27 1991-06-05 Waldemar H Kurherr Displacement-type rotary engine
US5032068A (en) * 1988-10-25 1991-07-16 Kurherr Waldemar H Displacement type rotary system steam turbine engine
US5161961A (en) * 1990-02-21 1992-11-10 Yue Zheng Gear pump with counterbalanced radial forces and two piece radial seals
RU2358113C2 (ru) * 2006-09-26 2009-06-10 Александр Александрович Маслеников Лопаточная машина
US20100098572A1 (en) * 2008-10-16 2010-04-22 Giuseppe Rago High speed gear pump
US20110200451A1 (en) * 2010-02-16 2011-08-18 Circulite, Inc. Test controller for a rotary pump
CN101443578B (zh) * 2006-03-13 2012-10-10 利莫－里德公司 低噪声齿轮泵
CN102926997A (zh) * 2012-10-28 2013-02-13 张意立 一种法兰内螺纹锥形弹簧齿轮泵

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059078B2 (ja) * 1981-02-25 1985-12-23 新日本製鐵株式会社 極低温鋼用高能率ｔｉｇ溶接材料

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068795A (en) * 1956-10-18 1962-12-18 Borg Warner Hydraulic power system
US3427985A (en) * 1967-08-09 1969-02-18 Chandler Evans Inc Three-gear pump with movable elements having plurality of sealing forces
US3597131A (en) * 1969-09-24 1971-08-03 Chandler Evans Inc Gear pump with travel limited tied wear block

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068795A (en) * 1956-10-18 1962-12-18 Borg Warner Hydraulic power system
US3427985A (en) * 1967-08-09 1969-02-18 Chandler Evans Inc Three-gear pump with movable elements having plurality of sealing forces
US3597131A (en) * 1969-09-24 1971-08-03 Chandler Evans Inc Gear pump with travel limited tied wear block

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201735A (en) * 1987-03-04 1988-09-07 Stal Refrigeration Ab A control system for a rotary compressor
GB2201735B (en) * 1987-03-04 1991-08-21 Stal Refrigeration Ab A combination of a rotary compressor and a control system for controlling the internal volume of the rotary compressor
US5032068A (en) * 1988-10-25 1991-07-16 Kurherr Waldemar H Displacement type rotary system steam turbine engine
GB2238579A (en) * 1989-11-27 1991-06-05 Waldemar H Kurherr Displacement-type rotary engine
GB2238579B (en) * 1989-11-27 1993-08-04 Waldemar H Kurherr Displacement-type rotary system steam-turbine engine or compressor or pump.
US5161961A (en) * 1990-02-21 1992-11-10 Yue Zheng Gear pump with counterbalanced radial forces and two piece radial seals
CN101443578B (zh) * 2006-03-13 2012-10-10 利莫－里德公司 低噪声齿轮泵
RU2358113C2 (ru) * 2006-09-26 2009-06-10 Александр Александрович Маслеников Лопаточная машина
US20100098572A1 (en) * 2008-10-16 2010-04-22 Giuseppe Rago High speed gear pump
US8292597B2 (en) * 2008-10-16 2012-10-23 Pratt & Whitney Canada Corp. High-speed gear pump
US20110200451A1 (en) * 2010-02-16 2011-08-18 Circulite, Inc. Test controller for a rotary pump
US9841013B2 (en) * 2010-02-16 2017-12-12 Circulite, Inc. Test controller for a rotary pump
US20180087500A1 (en) * 2010-02-16 2018-03-29 Circulite, Inc. Test controller for a rotary pump
CN102926997A (zh) * 2012-10-28 2013-02-13 张意立 一种法兰内螺纹锥形弹簧齿轮泵
CN102926997B (zh) * 2012-10-28 2016-03-16 张意立 一种法兰内螺纹锥形弹簧齿轮泵

Also Published As

Publication number Publication date
JPS5132783B2 (cs) 1976-09-14
JPS4927732A (cs) 1974-03-12

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