EP0216999A3 - An external gear pump or gear motor unit of the asymmetric radial floating type - Google Patents

An external gear pump or gear motor unit of the asymmetric radial floating type Download PDF

Info

Publication number
EP0216999A3
EP0216999A3 EP86108080A EP86108080A EP0216999A3 EP 0216999 A3 EP0216999 A3 EP 0216999A3 EP 86108080 A EP86108080 A EP 86108080A EP 86108080 A EP86108080 A EP 86108080A EP 0216999 A3 EP0216999 A3 EP 0216999A3
Authority
EP
European Patent Office
Prior art keywords
reduced
radial floating
gear
gear pump
radial
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.)
Withdrawn
Application number
EP86108080A
Other languages
German (de)
French (fr)
Other versions
EP0216999A2 (en
Inventor
Anqiang Cheng
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0216999A2 publication Critical patent/EP0216999A2/en
Publication of EP0216999A3 publication Critical patent/EP0216999A3/en
Withdrawn legal-status Critical Current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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Abstract

On the basis of asymmetry theory the low-pressure zone is enlarged and the high-pressure zone is reduced; the per­ formance of said gear pump or gear motor is optimized by means of an asymmetric axial and radial floating compensa­ tion device (5); the realization of axial and radial floating com­ pensation provides higher volumetric efficiency; by adopting the integral structure higher mechanical efficiency is obtained and the noise is reduced; the stable radial floating device makes the high-pressure radial sealing practicable. The high-­ pressure zone is reduced, the radial force is reduced and the lifetime of said gear pump or gear motor is prolonged. With the invention, the gear type hydraulic machinery can be pres­ surized up to 321 kg cm² level.
EP86108080A 1985-09-29 1986-06-13 An external gear pump or gear motor unit of the asymmetric radial floating type Withdrawn EP0216999A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN85107186A CN85107186B (en) 1985-09-29 1985-09-29 Asymmetry type radial floating gear pump and its motor
CN85107186 1985-09-29

Publications (2)

Publication Number Publication Date
EP0216999A2 EP0216999A2 (en) 1987-04-08
EP0216999A3 true EP0216999A3 (en) 1988-07-20

Family

ID=4795505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108080A Withdrawn EP0216999A3 (en) 1985-09-29 1986-06-13 An external gear pump or gear motor unit of the asymmetric radial floating type

Country Status (3)

Country Link
EP (1) EP0216999A3 (en)
JP (1) JPS6275086A (en)
CN (1) CN85107186B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094856B (en) * 2011-01-04 2013-11-13 孟庆龙 Hydraulic device for increasing pressure
JP6252802B2 (en) * 2013-06-13 2017-12-27 株式会社島津製作所 Gear pump or motor
IT201700010437A1 (en) * 2017-01-31 2018-07-31 Casappa Spa VOLUMETRIC MACHINE
CN114278559B (en) * 2022-01-10 2022-09-16 淮安市虎力液压机械有限公司 Hydraulic gear pump with adjusting function and operation stability improving function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787162A (en) * 1956-04-13 1957-12-04 New Prod Corp Improvements in or relating to gear pumps
GB1159315A (en) * 1965-10-12 1969-07-23 Otto Eckerle Improvements in and relating to Gear Pumps and Motors
US3838952A (en) * 1972-01-17 1974-10-01 Komatsu Mfg Co Ltd Gear pump and motor having a sealed lock for preventing hydraulic oil from leaking between the ends of the teeth of the gears

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787162A (en) * 1956-04-13 1957-12-04 New Prod Corp Improvements in or relating to gear pumps
GB1159315A (en) * 1965-10-12 1969-07-23 Otto Eckerle Improvements in and relating to Gear Pumps and Motors
US3838952A (en) * 1972-01-17 1974-10-01 Komatsu Mfg Co Ltd Gear pump and motor having a sealed lock for preventing hydraulic oil from leaking between the ends of the teeth of the gears

Also Published As

Publication number Publication date
JPS6275086A (en) 1987-04-06
CN85107186B (en) 1988-11-16
EP0216999A2 (en) 1987-04-08
CN85107186A (en) 1986-07-16

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