GB1451535A - Externally-meshing gear pumps - Google Patents
Externally-meshing gear pumpsInfo
- Publication number
- GB1451535A GB1451535A GB497174A GB497174A GB1451535A GB 1451535 A GB1451535 A GB 1451535A GB 497174 A GB497174 A GB 497174A GB 497174 A GB497174 A GB 497174A GB 1451535 A GB1451535 A GB 1451535A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recess
- plate
- seal pack
- feb
- 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
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
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
1451535 Gear pumps TRW Inc 4 Feb 1974 [8 Feb 1973] 04971/74 Heading F1F An externally meshing gear pump comprises gears 12, 13 mounted in a recess 11 in a casing member 10, a pressure plate 21 engaging the side of the gears at the open end of the recess so as to have a peripheral clearance with the recess wall, a cover member 24 which abuts casing member 10 to close recess 11 and which has a recess of the general shape shown in Fig. 2, i.e. with an outer annular channel, channels surrounding the gear bearings, and bridging channels therebetween, and a seal pack mounted in the recess in the cover member 24 to sealing bridge the clearance between the wall of recess 11 and the "floating" pressure plate 21. The seal pack comprises a paper-type member 40 adjacent plate 21 and made of material sold under the Trade Mark "NOMEX", a steel plate 41, a further member 42 similar to member 40 and a resilient biasing a sealing member 43. Outlet pressure is communicated to the recess behind member 43 via passage 44 to cause the seal pack to continuously and flexibly conform to the gap between plate 21 and recess 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00330867A US3841804A (en) | 1973-02-08 | 1973-02-08 | Floating plate for end clearance seal on gear pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1451535A true GB1451535A (en) | 1976-10-06 |
Family
ID=23291643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB497174A Expired GB1451535A (en) | 1973-02-08 | 1974-02-04 | Externally-meshing gear pumps |
Country Status (6)
Country | Link |
---|---|
US (1) | US3841804A (en) |
JP (1) | JPS5326681B2 (en) |
CA (1) | CA1001897A (en) |
FR (1) | FR2217569B1 (en) |
GB (1) | GB1451535A (en) |
IT (1) | IT1007264B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6329181Y2 (en) * | 1980-02-29 | 1988-08-05 | ||
US5961309A (en) * | 1997-04-24 | 1999-10-05 | Trw Inc. | Gear pump with noise attenuation |
DE10331979A1 (en) * | 2003-07-14 | 2005-02-17 | Gkn Sinter Metals Gmbh | Pump with optimized axial clearance |
US8820433B2 (en) | 2011-08-30 | 2014-09-02 | Black & Decker Inc. | Axially compact power tool |
CN103032313B (en) * | 2013-01-11 | 2016-04-06 | 徐州科源液压股份有限公司 | The floating side plate of ultrahigh voltage gear pump |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749529C (en) * | 1938-12-22 | 1944-11-30 | Gear pump as a gasoline injection pump for internal combustion engines | |
US3029739A (en) * | 1958-07-09 | 1962-04-17 | John L Nagely | Gear pump or motor with radial pressure balancing means |
US3050010A (en) * | 1960-02-23 | 1962-08-21 | Thompson Ramo Wooldridge Inc | Pressure loaded pump |
FR1328621A (en) * | 1962-06-15 | 1963-05-31 | Thompson Ramo Wooldridge Inc | Power steering pump and seal cartridge for said pump |
US3213800A (en) * | 1965-05-04 | 1965-10-26 | Webster Electric Co Inc | Unitary wear plate and seal |
US3336035A (en) * | 1965-08-03 | 1967-08-15 | Flexitallic Company | Multiple passage gasket |
US3294029A (en) * | 1965-08-20 | 1966-12-27 | Trw Inc | Pressure balanced seal-pack for reversible pumps and motors |
US3499390A (en) * | 1968-04-11 | 1970-03-10 | Parker Hannifin Corp | Rotary pump |
US3482524A (en) * | 1968-06-12 | 1969-12-09 | Gen Signal Corp | Pump or motor |
US3679218A (en) * | 1969-03-03 | 1972-07-25 | Farnam Co F D | Unitized valve plate, gaskets and the like |
DE1958936C3 (en) * | 1969-11-24 | 1979-03-08 | Parker-Hannifin Corp., Cleveland, Ohio (V.St.A.) | Pressure equalization arrangement for an externally meshed gear pump provided with two gears |
-
1973
- 1973-02-08 US US00330867A patent/US3841804A/en not_active Expired - Lifetime
-
1974
- 1974-01-31 CA CA191,417A patent/CA1001897A/en not_active Expired
- 1974-02-04 GB GB497174A patent/GB1451535A/en not_active Expired
- 1974-02-06 IT IT20243/74A patent/IT1007264B/en active
- 1974-02-07 FR FR7404110A patent/FR2217569B1/fr not_active Expired
- 1974-02-08 JP JP1612974A patent/JPS5326681B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS49106604A (en) | 1974-10-09 |
FR2217569B1 (en) | 1978-06-30 |
CA1001897A (en) | 1976-12-21 |
JPS5326681B2 (en) | 1978-08-03 |
DE2406100B2 (en) | 1977-02-17 |
DE2406100A1 (en) | 1974-08-29 |
FR2217569A1 (en) | 1974-09-06 |
US3841804A (en) | 1974-10-15 |
IT1007264B (en) | 1976-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |