GB1332390A - Liquid-pumping apparatus - Google Patents
Liquid-pumping apparatusInfo
- Publication number
- GB1332390A GB1332390A GB4169071A GB4169071A GB1332390A GB 1332390 A GB1332390 A GB 1332390A GB 4169071 A GB4169071 A GB 4169071A GB 4169071 A GB4169071 A GB 4169071A GB 1332390 A GB1332390 A GB 1332390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- orifice
- spring
- sealing block
- valve
- 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
- 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
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
- F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
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
1332390 Rotary pumps CHANDLER EVANS Inc 7 Sept 1971 [17 Sept 1970] 41690/71 Heading F1F In pumping apparatus for a liquid such as gasturbine fuel a centrifugal pump 20 is connected in series with gear pump 24 and driven simultaneously with the latter by a shaft 40, the pump 24 being unloaded when the pressure P F at an outlet 14 reaches a predetermined value. A sealing block 46 is urged towards the gears 32, 34 by a spring 52 and defines a discharge chamber 47 communicating with the outlet 14 and a valve chamber 62 through an outlet 26 and an orifice 58, respectively. While the pressure P F is less than the predetermined value a valve-member 74 closes an orifice 70 so that the said pressure helps the spring 52 to hold the sealing block against the gears. When the said value is reached the pressure P F acting upon spring-loaded bellows 78 by way of a filter 27 withdraws the valve member from the orifice 70, the consequent pressuredrop across the orifice 58 causing retraction of the sealing block. A pressure-relief conduit 28 is controlled by a check-valve 30. In a second embodiment, Fig.2, spring-loaded wedges 106, 108 replace the spring 52, shafts 112 serving as pistons being subjected to the pressure P F through an orifice 120, which causes a loss of pressure when the orifice 70 is opened. A somewhat . similar arrangement is made in a third embodiment, Fig.3 (not shown), the wedges being replaced by struts (216) sliding on oblique fixedsurfaces and engaged by spring-loaded pistons (210, 212) subjected to the pressure in the chamber 47 through an orifice (204) in the sealing block. The wedges 106,108 may be replaced by a single wedge (not shown). Each embodiment may include check plates for the gears.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7337870A | 1970-09-17 | 1970-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1332390A true GB1332390A (en) | 1973-10-03 |
Family
ID=22113348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4169071A Expired GB1332390A (en) | 1970-09-17 | 1971-09-07 | Liquid-pumping apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3635602A (en) |
| CA (1) | CA945811A (en) |
| DE (1) | DE2144977A1 (en) |
| GB (1) | GB1332390A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2449177C1 (en) * | 2010-12-17 | 2012-04-27 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Centrifugal gear pump |
| RU2472041C1 (en) * | 2011-07-29 | 2013-01-10 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Combined centrifugal gear pump |
| RU2472040C1 (en) * | 2011-07-29 | 2013-01-10 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Combined centrifugal gear pump |
| RU2656479C1 (en) * | 2017-06-20 | 2018-06-05 | Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") | Method of working the oil aggregate of the turboretactive engine (tre) and the oil-agriculture tre operating this method (options) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941505A (en) * | 1973-06-25 | 1976-03-02 | Trw Inc. | Method and apparatus for pumping fuel |
| FR2504208A1 (en) * | 1981-03-31 | 1982-10-22 | Kayaba Industry Co Ltd | SEALING BLOCK FOR PUMPS OR ENGINES WITH GEARS |
| US5051065A (en) * | 1989-04-07 | 1991-09-24 | Vickers, Incorporated | Power transmission |
| US9206775B2 (en) | 2012-02-01 | 2015-12-08 | United Technologies Corporation | Fuel preheating using electric pump |
| US9316157B2 (en) | 2012-02-01 | 2016-04-19 | Hamilton Sundstrand Corporation | Fuel system for starting an APU using a hybrid pump arrangement |
| GB201309049D0 (en) * | 2013-05-20 | 2013-07-03 | Rolls Royce Engine Control Systems Ltd | Fuel pumping unit |
| RU2555602C1 (en) * | 2014-07-24 | 2015-07-10 | Открытое Акционерное Общество "Уфимское Моторостроительное Производственное Объединение" (Оао "Умпо") | Centrifugal gear-type pump |
| US10544788B2 (en) * | 2014-08-04 | 2020-01-28 | Circor Pumps North America, Llc | Dual integrated pump having a first and second pump portion connected in series and driven by a common shaft |
| RU2561348C1 (en) * | 2014-09-01 | 2015-08-27 | Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Российская федерация Республика Башкортостан | Centrifugal gear-type pump |
| US10309396B2 (en) * | 2016-04-27 | 2019-06-04 | Deere & Company | Positive displacement pump including an unloading device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1927799A (en) * | 1932-03-07 | 1933-09-19 | Goulds Pumps | Rotary pump |
| US3026929A (en) * | 1954-03-17 | 1962-03-27 | Chandler Evans Corp | Compound centrifugal and gear fuel pump |
-
1970
- 1970-09-17 US US73378A patent/US3635602A/en not_active Expired - Lifetime
-
1971
- 1971-08-23 CA CA121,108A patent/CA945811A/en not_active Expired
- 1971-09-07 GB GB4169071A patent/GB1332390A/en not_active Expired
- 1971-09-08 DE DE19712144977 patent/DE2144977A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2449177C1 (en) * | 2010-12-17 | 2012-04-27 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Centrifugal gear pump |
| RU2472041C1 (en) * | 2011-07-29 | 2013-01-10 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Combined centrifugal gear pump |
| RU2472040C1 (en) * | 2011-07-29 | 2013-01-10 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Combined centrifugal gear pump |
| RU2656479C1 (en) * | 2017-06-20 | 2018-06-05 | Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") | Method of working the oil aggregate of the turboretactive engine (tre) and the oil-agriculture tre operating this method (options) |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2144977A1 (en) | 1972-03-23 |
| US3635602A (en) | 1972-01-18 |
| CA945811A (en) | 1974-04-23 |
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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 | ||
| PCPE | Delete 'patent ceased' from journal |
Free format text: 4859,PAGE 1222 |
|
| PCNP | Patent ceased through non-payment of renewal fee |