GB1400577A - Gear for gear pump or motor - Google Patents

Gear for gear pump or motor

Info

Publication number
GB1400577A
GB1400577A GB4002272A GB4002272A GB1400577A GB 1400577 A GB1400577 A GB 1400577A GB 4002272 A GB4002272 A GB 4002272A GB 4002272 A GB4002272 A GB 4002272A GB 1400577 A GB1400577 A GB 1400577A
Authority
GB
United Kingdom
Prior art keywords
gear
degrees
torque
motor
addendum
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
Application number
GB4002272A
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.)
Shimadzu Corp
Shimadzu Seisakusho Ltd
Original Assignee
Shimadzu Corp
Shimadzu Seisakusho 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 Shimadzu Corp, Shimadzu Seisakusho Ltd filed Critical Shimadzu Corp
Publication of GB1400577A publication Critical patent/GB1400577A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/08—Profiling
    • F16H55/0806—Involute profile
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19949—Teeth
    • Y10T74/19963—Spur
    • Y10T74/19972—Spur form

Abstract

1400577 Gear-pumps and motors SHIMADZU SEISAKUSHO Ltd 29 Aug 1972 [28 Aug 1971] 40022/72 Heading F1F [Also in Division F2] Each tooth on a gear for a gear-pump or motor has a profile, uniform throughout the axial length of the tooth, in which the torque-transmitting side 41 has an involute form, and the non-torquetransmitting side 42 has an addendum portion 42a which is involutely formed and a cut-away dedendum portion 42b, the pressure angle of the torquetransmitting side 41 being greater than that of the addendum non-torque-transmitting portion 42a. The pressure angle on the torque-transmitting side 41 may be between 14 and 30 degrees and is preferably 23 degrees. The pressure angle of the addendum portion 42a is between 0 and 20 degrees and preferably is 14.5 degrees.
GB4002272A 1971-08-28 1972-08-29 Gear for gear pump or motor Expired GB1400577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46066123A JPS50702B2 (en) 1971-08-28 1971-08-28

Publications (1)

Publication Number Publication Date
GB1400577A true GB1400577A (en) 1975-07-16

Family

ID=13306772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4002272A Expired GB1400577A (en) 1971-08-28 1972-08-29 Gear for gear pump or motor

Country Status (5)

Country Link
US (1) US3817117A (en)
JP (1) JPS50702B2 (en)
DE (1) DE2242269C3 (en)
FR (1) FR2151943A5 (en)
GB (1) GB1400577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326915A (en) * 1997-04-22 1999-01-06 Dana Corp Gear pump with asymmetric tooth profiles

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1467441A (en) * 1973-03-15 1977-03-16 Lucas Industries Ltd Hydraulic gear pumps and motors
US4041794A (en) * 1975-10-28 1977-08-16 Ebauches S.A. Mechanism of transmission
IT1168039B (en) * 1980-10-17 1987-05-20 Hobourn Eaton Ltd PUMP, OF THE TYPE INCLUDING AN EXTERNALLY TOOTHED OR LOBE ROTOR ASSEMBLED ECCENTRICALLY WITHIN AN EXTERNAL ROTOR INTERNALLY TOOTHED OR LOBE AND GEARED WITH IT
JPS6335077Y2 (en) * 1981-01-23 1988-09-19
US4653340A (en) * 1986-03-03 1987-03-31 Pitney Bowes Inc. Beveled spur gear
JPH0191153U (en) * 1987-12-08 1989-06-15
DE3809721C1 (en) * 1988-03-23 1989-06-01 Robert Bosch Gmbh, 7000 Stuttgart, De
DE4138913C1 (en) * 1991-11-27 1993-06-09 John S. Barnes Gmbh, 8670 Hof, De
JP3559061B2 (en) * 1994-03-15 2004-08-25 栃木富士産業株式会社 Differential device
DE10003735A1 (en) * 2000-01-28 2000-11-16 Bosch Gmbh Robert Mechanical hydraulic pump has meshing gear wheels with asymmetric gear tooth edges to reduce pulsation in the output pressure
US6729855B2 (en) * 2002-02-01 2004-05-04 S & S Cycle, Inc. Oil pump and gears
EP1635063A1 (en) * 2004-09-08 2006-03-15 Johann Sagawe Hydraulic gear motor with reduced flowate
US8242736B2 (en) * 2008-04-03 2012-08-14 Honda Motor Co., Ltd. DC motor with directionally determined torque
EP2303362B1 (en) * 2008-07-18 2019-06-05 Becton, Dickinson and Company Dual chamber and gear pump assembly for a high pressure delivery system
US9038988B1 (en) 2010-11-01 2015-05-26 Akron Brass Company Valve having reduced operating force and enhanced throttling capability
US9057372B2 (en) * 2010-12-06 2015-06-16 Hamilton Sundstrand Corporation Gear root geometry for increased carryover volume
ITMI20122168A1 (en) * 2012-12-18 2014-06-19 Mario Antonio Morselli HYDRAULIC GEAR MACHINE AND RELATIVE TOOTHED WHEEL
WO2015193809A1 (en) * 2014-06-17 2015-12-23 Mario Antonio Morselli Monodirectionally torque-transmitting toothed gearing
EP3384159B1 (en) 2015-12-04 2020-11-25 Audi AG External gear pump
JP6788968B2 (en) * 2015-12-28 2020-11-25 株式会社シマノ Gears and transmissions for bicycles equipped with them
US10634231B2 (en) * 2016-04-19 2020-04-28 Ford Global Technologies, Llc Gears with varying pressure angle
DE102017108484A1 (en) 2017-04-21 2018-10-25 Eberhard Kist rotary displacement
US11707792B2 (en) * 2020-09-28 2023-07-25 GM Global Technology Operations LLC Scattered topography rolling of powered metal gears

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US462073A (en) * 1891-10-27 Sawing-machine
GB190722001A (en) * 1907-10-05 1908-06-11 Stuart William Buchan Mcgregor Improvements in Toothed Gearing
US2752751A (en) * 1952-07-12 1956-07-03 Vaucher Eric Automatic winding gear for watches

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326915A (en) * 1997-04-22 1999-01-06 Dana Corp Gear pump with asymmetric tooth profiles
US6123533A (en) * 1997-04-22 2000-09-26 Dana Corporation Cavitation-free gear pump
GB2326915B (en) * 1997-04-22 2001-05-16 Dana Corp Cavitation-free gear pump

Also Published As

Publication number Publication date
DE2242269B2 (en) 1980-06-12
DE2242269C3 (en) 1981-02-19
JPS50702B2 (en) 1975-01-10
FR2151943A5 (en) 1973-04-20
JPS4832201A (en) 1973-04-27
US3817117A (en) 1974-06-18
DE2242269A1 (en) 1973-03-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years