BR9801879A - Bomba de engrenagem livre de cavitação - Google Patents

Bomba de engrenagem livre de cavitação

Info

Publication number
BR9801879A
BR9801879A BR9801879-5A BR9801879A BR9801879A BR 9801879 A BR9801879 A BR 9801879A BR 9801879 A BR9801879 A BR 9801879A BR 9801879 A BR9801879 A BR 9801879A
Authority
BR
Brazil
Prior art keywords
cavitation
gear
teeth
drive gear
intermediate gear
Prior art date
Application number
BR9801879-5A
Other languages
English (en)
Inventor
James R Mcburnett
William D Mcmillan
Original Assignee
Dana Corp
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 Dana Corp filed Critical Dana Corp
Publication of BR9801879A publication Critical patent/BR9801879A/pt

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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • 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
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps 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
    • F04C2/20—Rotary-piston machines or pumps 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 dissimilar tooth forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

<B>BOMBA DE ENGRENAGEM LIVRE DE CAVITAçãO<D> Uma bomba de engrenagem de deslocamento positivo útil para bombear fluido hidráulico inclui uma engrenagem de acionamento e uma engrenagem intermediária. Na primeira modalidade, a engrenagem de acionamento possui dentes simétricos, enquanto a engrenagem intermediária possui dentes assimétricos. Os dentes assimétricos da engrenagem intermediária incluem superfícies de trabalho que possuem um perfil correspondente ao perfil das superfícies de trabalho e das que não trabalham da engrenagem de acionamento, porém possuem uma superfície que não trabalha que foi liberada de maneira a ser substancialmente plana. Consequentemente, na zona da bomba onde as engrenagens se acoplam, é criado um grande jogo morto eu substancialmente evita a formação de bolhas. Em uma segunda modalidade, a engrenagem de acionamento, bem como a engrenagem intermediária, possuem superfícies sem contato que são substancialmente planas para criar um jogo morto muito mais largo para liberar cavitação quando os dentes são mais largos na direção axial. Evitando a formação de bolhas, a cavitação que ocorre em altas velocidades é substancialmente eliminada, evitando assim danos resultantes da cavitação.
BR9801879-5A 1997-04-22 1998-04-22 Bomba de engrenagem livre de cavitação BR9801879A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83778797A 1997-04-22 1997-04-22

Publications (1)

Publication Number Publication Date
BR9801879A true BR9801879A (pt) 2000-08-29

Family

ID=25275426

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9801879-5A BR9801879A (pt) 1997-04-22 1998-04-22 Bomba de engrenagem livre de cavitação

Country Status (6)

Country Link
US (1) US6123533A (pt)
JP (1) JPH1144294A (pt)
BR (1) BR9801879A (pt)
CA (1) CA2235570C (pt)
DE (1) DE19818027B4 (pt)
GB (1) GB2326915B (pt)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002218504A1 (en) 2000-11-30 2002-06-11 Takehiro Otsubo Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine
EP1523608A2 (en) * 2001-02-08 2005-04-20 Outland Technologies (USA), Inc. Rotary positive displacement device
SI1540184T1 (sl) * 2002-06-03 2016-02-29 M&M Technologies, Inc. Zobniška črpalka
US20050095160A1 (en) * 2003-10-29 2005-05-05 Heng-I Lin Pump
DE10355214A1 (de) * 2003-11-26 2005-06-30 Robert Bosch Gmbh Zahnradpumpe, insbesondere Kraftstoffpumpe
JP5024750B2 (ja) * 2006-08-20 2012-09-12 秀隆 渡辺 ロータリー式熱流体機器
US20080063554A1 (en) * 2006-09-08 2008-03-13 Gifford Thomas K Precision flow gear pump
US8242736B2 (en) * 2008-04-03 2012-08-14 Honda Motor Co., Ltd. DC motor with directionally determined torque
US8087913B2 (en) * 2008-12-22 2012-01-03 Hamilton Sundstrand Corporation Gear pump with unequal gear teeth on drive and driven gear
RU2482357C1 (ru) * 2012-02-02 2013-05-20 Денис Николаевич Мендрух Зубчатое колесо
ITMI20122168A1 (it) 2012-12-18 2014-06-19 Mario Antonio Morselli Macchina idraulica a ingranaggi e relativa ruota dentata
KR101428302B1 (ko) * 2012-12-21 2014-08-07 현대자동차주식회사 액티브 에어플랩 장치용 액추에이터
US10578100B2 (en) 2013-02-26 2020-03-03 Novatek Ip, Llc High-pressure pump for use in a high-pressure press
WO2014171567A1 (en) * 2013-04-17 2014-10-23 Nag-Bok Lim Silent gear pump suppressing tooth contact noise
JP6221431B2 (ja) * 2013-07-08 2017-11-01 アイシン精機株式会社 外接ギヤ式ポンプ
JP6394097B2 (ja) * 2014-06-18 2018-09-26 日産自動車株式会社 車両用ギヤポンプ
US9776728B2 (en) 2014-07-22 2017-10-03 Hamilton Sundstrand Corporation Dual-stage gear pump with reduced pressure ripple
CN108291537B (zh) 2015-12-04 2020-10-09 奥迪股份公司 外啮合齿轮泵
US10563653B2 (en) 2016-01-12 2020-02-18 Hamilton Sundstrand Corporation Gear pump
US10443597B2 (en) 2016-01-12 2019-10-15 Hamilton Sundstrand Corporation Gears and gear pumps
US9945376B2 (en) 2016-03-16 2018-04-17 Hamilton Sundstrand Corporation Gear pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US171651A (en) * 1876-01-04 Improvement in rotary pumps
US1633793A (en) * 1924-01-25 1927-06-28 Hardinge Brothers Inc Gear pump
US2601004A (en) * 1946-07-19 1952-06-17 Bendix Aviat Corp Gear pump
US2845031A (en) * 1953-01-13 1958-07-29 Francis W Guibert Gear tooth construction for rotary fluid meters
GB1171773A (en) * 1966-02-08 1969-11-26 Leslie John Beal Theft-Prevention Devices for Motor Vehicles.
GB1170773A (en) * 1966-03-23 1969-11-19 Lucas Industries Ltd Gear Pumps
GB1263921A (en) * 1968-04-25 1972-02-16 Lucas Industries Ltd Gear pumps
JPS50702B2 (pt) * 1971-08-28 1975-01-10
US3981646A (en) * 1973-03-15 1976-09-21 Lucas Aerospace Limited Gear pumps and motors
US4233003A (en) * 1978-10-10 1980-11-11 Jeng Wang Shing Rotary pump
DE3205702A1 (de) * 1982-02-17 1983-09-08 GTS Gesellschaft für Turbo- und Schraubenverdichtertechnik Kirsten KG, 5090 Leverkusen Drehkolbenverdichter
JPH0756268B2 (ja) * 1987-07-27 1995-06-14 株式会社ユニシアジェックス オイルポンプ
US5145349A (en) * 1991-04-12 1992-09-08 Dana Corporation Gear pump with pressure balancing structure

Also Published As

Publication number Publication date
US6123533A (en) 2000-09-26
GB2326915B (en) 2001-05-16
DE19818027B4 (de) 2010-10-07
CA2235570A1 (en) 1998-10-22
GB9808589D0 (en) 1998-06-24
GB2326915A (en) 1999-01-06
CA2235570C (en) 2008-01-22
JPH1144294A (ja) 1999-02-16
DE19818027A1 (de) 1998-10-29
GB2326915A8 (en) 1999-01-18

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Legal Events

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PC Transfer

Free format text: PARKER HANNIFIN CORPORATION (US)

FB36 Technical and formal requirements: requirement - article 36 of industrial property law
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements