CN103298731B - Steam Recovery pump - Google Patents
Steam Recovery pump Download PDFInfo
- Publication number
- CN103298731B CN103298731B CN201080071002.XA CN201080071002A CN103298731B CN 103298731 B CN103298731 B CN 103298731B CN 201080071002 A CN201080071002 A CN 201080071002A CN 103298731 B CN103298731 B CN 103298731B
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- China
- Prior art keywords
- room
- piston
- steam
- steam recovery
- pump
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
- B67D7/0478—Vapour recovery systems constructional features or components
- B67D7/048—Vapour flow control means, e.g. valves, pumps
- B67D7/0482—Vapour flow control means, e.g. valves, pumps using pumps driven at different flow rates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention relates to a kind of Steam Recovery pump (1) for fuel allocation units (22).Steam Recovery pump (1) comprises pump case (2), and this pump case has the first Room (3), the second Room (4) and the 3rd Room (5), and each described room (3,4,5) all have steam port (8,9,12).The first piston (6) that first and second Room (3,4) are included the first steam inlet valve (17) is separated, and second and the 3rd Room (4,5) the second piston (7) of being included the second steam inlet valve (18) separate.First and second pistons (6,7) are configured to reciprocally and relative to each other out of phase move, and make the volume of room (3,4,5) repeatedly reduce and increase, and can flow to make the steam between the first, the 3rd Room (3,5) and the second Room (4).The invention still further relates to a kind of fuel allocation units refueled for vehicle.
Description
Technical field
The present invention relates to the Steam Recovery pump of fuel allocation units, this Steam Recovery pump comprises the pump case with the first Room, the second Room and the 3rd Room.The invention still further relates to a kind of fuel allocation units.
Background technology
When the Fuel Tank of charging machine motor-car, when for fuel tank filler liquid fuel, common measure is the steam reclaiming effusion Fuel Tank.This measure is taked for the reason of safety and environment, because fuel vapour is flammable and forms health hazard.Such as, Steam Recovery is realized by arranging steam suction nozzle near the fuel distribution mouth of the oiling pikestaff (pistol grip) for Fuel Tank fuel up.Therefore, be removed from Fuel Tank with given pace at filling (fuel) period steam, this speed is controlled by standard speed usually.Vapor-recovery system typically comprises pump, comes to remove fuel vapour from the Fuel Tank of vehicle in order to supply fuel container (fuel is fed into vehicle from fuel container) by suction of fuel steam and by its time.When for vehicle fueling, this mutual exchange of steam/fuel is carried out constantly.
The problem be associated with this vapor-recovery system is the higher manufacturing cost because the configuration of complexity causes.Handling labor is loaded down with trivial details, and wherein many technological means are responsive to the steam leakage via the piston in pump.Another problem is that some of them configuration is quite huge, occupies large quantity space when being arranged on fuel allocation units and being inner.
Such as, EP 1783368 discloses a kind of Steam Recovery pump of fuel allocation units, it comprises the housing with two rooms, each room has steam inlet valve and steam outlet valve respectively, these rooms are separated by moveable piston, and this piston is provided between the first end of enclosure interior and the second end position and moves a certain distance, reduce continuously to make the volume of these rooms and increase.Control element is provided for the location optionally changing first end position.
This Steam Recovery pump solves above-mentioned many problems.But this pump creates again new problem.The motion of piston causes the unexpected vibration of Steam Recovery pump.And this vibration creates the vapor-recovery system of noise, and the structure around it may be made to be worn.
Summary of the invention
The object of this invention is to provide the improvement to above-mentioned technological means and prior art.More specifically, the object of this invention is to provide a kind of Steam Recovery pump and the fuel allocation units with the structure of improvement, the lower and required maintenance of its manufacturing cost is less.In addition, the object of this invention is to provide the minimum Steam Recovery pump of a kind of vibration caused during use.
These objects, and be realized by the Steam Recovery pump being used for fuel allocation units according to independent claims from following description of the invention by other objects apparent and advantage.
Therefore, a kind of Steam Recovery pump of fuel allocation units is provided.This Steam Recovery pump comprises pump case, and this pump case has the first Room, the second Room and the 3rd Room, and each described room all has steam port.The first piston that first Room and the second Room are included the first steam inlet valve is separated, and the second piston that the second Room and the 3rd Room are included the second steam inlet valve is separated.First piston and the second piston are configured to reciprocally and relative to each other out of phase move, and make the volume of these rooms repeatedly reduce and increase, and flow to enable the steam between the first, the 3rd Room and the second Room.Its advantage is, Steam Recovery comprises two pistons, due to piston motion relative to each other and any vibration counteracted caused by piston.Therefore, the vapor-recovery system with this Steam Recovery pump will operate swimmingly, and not cause the noise of bothering.Another advantage is, the steam that pump in accordance with the present invention occurs for the both sides of piston is insensitive.Pump is easy to manufacture, and lower to the demand safeguarded.
The steam port of the first Room and the 3rd Room can be Steam Recovery entrance, and the steam port of described second Room can be Steam Recovery outlet.Steam is sent in the first Room and the 3rd Room via Steam Recovery entrance, and leaves the second Room via Steam Recovery outlet.
The steam port of the first Room and the 3rd Room can be Steam Recovery outlet, and the steam port of the second Room can be Steam Recovery entrance.Steam is sent to the second Room via Steam Recovery entrance, and leaves the first Room and the 3rd Room via Steam Recovery outlet.Therefore, the state by changing steam port changes the vapor stream by Steam Recovery pump.
First steam inlet valve and the second steam inlet valve can be boiler check valve, and its advantage is only to allow steam to advance along a direction.
Can arrange boiler check valve at each steam port, this makes it possible to control the flowing by described port better.
Each first piston and the second piston all can comprise magnetic device, can arrange electromagnetic control apparatus to carry out mobile piston by changing magnetic field.Its advantage is to be conducive to control plunger easily.Preferably, this magnetic device is electromagnet, permanent magnet or their combination.
Each first piston and the second piston can be made up of magnetic material.Its advantage is to be conducive to control plunger easily.
This pump case can comprise coil, and this coil is powered with mobile described first piston and the second piston, and this makes the compact to design of Steam Recovery pump.
Second Room can comprise: coil, and this coil is powered with mobile described first piston and the second piston; And elastic element, be attached between described first piston and the second piston.When making piston move towards each other by the electric current being supplied to coil, elastic element is compressed.When current-termination, piston is assisted to retract its rest position by the elastic element compressed.
Each first Room and the 3rd Room all can be wrapped: coil, this coil is powered with mobile described first piston and the second piston, and the first elastic element can be attached between first piston and the first side wall in the first Room of pump case, and the second elastic element can be attached between the second piston and second sidewall in the 3rd Room of pump case.When making piston away from each other by the electric current supplied to coil, the first elastic element and the second elastic element are compressed.When current-termination, piston is assisted to be moved back into its rest position by the elastic element compressed.Certainly, the quantity of the coil that comprises of Steam Recovery pump and elastic element can change.
According to alternative plan of the present invention, the present invention relates to the fuel allocation units for vehicle refuels, it comprises the Steam Recovery pump according to above-mentioned feature.Steam suction nozzle is connected to the first Room and the 3rd Room via vapor flow path, or is connected to described second Room, in order to transport fuel vapour.
Outline, if not clearly define in addition herein, all terms used in claims all should make an explanation according to its usual implication in the art.If not clearly state in addition, allly to mention that " one/mono-/should (element, equipment, parts, device etc.) " should carry out opening explanation with reference at least one situation of described element, equipment, parts, device etc.
Accompanying drawing explanation
By exemplary, the nonrestrictive detailed description also reference accompanying drawing of following the preferred embodiments of the present invention, above-mentioned and other object, feature and advantage of the present invention that this will be best understood, Reference numeral identical in the accompanying drawings indicates identical element by being used for, wherein
Fig. 1 a to Fig. 1 d is the block diagram of the first embodiment of Steam Recovery pump according to first scheme of the present invention,
Fig. 2 is the block diagram of the second embodiment of Steam Recovery pump according to first scheme of the present invention, and
Fig. 3 is the block diagram of the fuel allocation units according to alternative plan of the present invention.
Detailed description of the invention
Fig. 1 illustrates the Steam Recovery pump 1 with pump case 2, and pump case 2 comprises the first Room 4, Room 3, second and the 3rd Room 5.First Room 3 and the second Room 4 are separated by first piston 3, and the second Room 4 and the 3rd Room 5 are separated by the second piston 7.During use Steam Recovery pump 1, first piston 6 and the second piston 7 can move along the horizontal direction of pump case 2, repeatedly reduce to make the volume of room 3,4,5 and increase.First piston 6 and the second piston 7 move back and forth and substantially move about out-phase each other in pump case 2.The volume of each room 3,4,5 depends on the position of piston 6,7, but the total volume of room 3,4,5 is constant.But the first Room 3 is substantially identical each other all the time with the volume of the 3rd Room 5.First Room 3 and the 3rd Room 5 have Steam Recovery entrance 8,9, and steam inlet tube 10,11 is connected to Steam Recovery entrance 8,9.Second Room 4 has Steam Recovery outlet 12, and steam outlet pipe 13 is connected to Steam Recovery outlet 12.Steam Recovery entrance 8,9 and Steam Recovery outlet 12 are provided with boiler check valve 14,15,16, to guarantee that steam flows along a direction.Steam inlet valve 14,16 guarantees that vapor stream enters the first Room 3 and the 3rd Room 5 from steam inlet tube 10,11 instead of along other direction.Steam outlet valve 15 guarantees that vapor stream is from the second Room 4 instead of enter steam outlet pipe 13 along other direction.The end not being connected to pump case 2 of steam inlet tube 10,11 is connected to the fuel oil atomizer of fuel allocation units.The end not being connected to pump case 2 of steam outlet pipe 13 is connected to the fuel reservoir holding fuel.During use fuel allocation units, therefore steam be drawn into pump case 2 from fuel oil atomizer via steam inlet tube 10,11, and enter fuel reservoir via steam inlet tube 13 under pressure from pump case.First piston is provided with the first steam inlet valve 17, second piston 7 and is provided with the second steam inlet valve 18.Steam inlet valve 17,18 is boiler check valve.Between the used life of Steam Recovery pump 1, the first steam inlet valve 17 and the second steam inlet valve 18 guarantee that steam flows into the second Room 4 from the first Room 3 and the second Room 5, instead of flow along other direction.
Fig. 1 b to Fig. 1 d shows the Steam Recovery pump 1 be between used life.In Figure 1b, first piston 6 and the second piston 7 are moved towards each other in the horizontal direction in the pump case 2 of Steam Recovery pump 1.Therefore, because volume increases, the pressure therefore in the first Room 3 and the 3rd Room 5 reduces, and makes steam be inhaled into first Room 3 and three Room 5 by steam inlet tube 10,11 via Steam Recovery entrance 8,9 from fuel oil atomizer.When steam is inhaled into the first Room 3 and the 3rd Room 5, piston 6,7 is mobile away from each other in the horizontal direction in pump case 2, as illustrated in figure 1 c.Steam inlet valve 14,16 prevents steam from overflowing via steam inlet tube, and steam outlet valve 15 prevents steam from turning back in the second Room 4 via steam outlet pipe 13.
Like this, steam is pressed into the second Room 4 from the first Room 3 and the second Room 5 via steam inlet valve 17,18.By making piston 6,7 again move in opposite directions, steam is forced into steam outlet pipe 13 by from the second Room 4 by steam (vapor) outlet 15, and is sent to fuel reservoir.Meanwhile, new fuel vapour is drawn into the first Room 3 and the 3rd Room 5 via Steam Recovery entrance 8,9, as shown in Figure 1 d.
In fig. 2, Steam Recovery pump 1 is according to a second embodiment of the present invention shown.In the present embodiment, first piston 6 and the second piston 7 comprise magnetic device.Electromagnetic control apparatus 20 is set up in order to carry out mobile piston by changing magnetic field.The coil 21 being such as attached to pump case 2 can be used to change magnetic field.Coil is powered subsequently, with mobile first piston 6 and the second piston 7.But the method for other control plungers 6,7 is also feasible certainly.Such as, the driving engine controlled by control unit can be used.
With reference to Fig. 2, electromagnetic control apparatus 20 is connected to the multiple coils 21 be located at around pump case 2.Preferably, coil 21 is integrated in pump case 2.During the operation of Steam Recovery pump 1, produce the magnetic field attracting piston 6,7 by powering to coil 21, or more specifically, attract the magnetic device 19 in piston 6,7.By powering to the coil 21 in the outside near pump case 2, piston 6,7 moves laterally.When piston 6,7 is near outside, to the coil power supply at the center near pump case 2, this makes piston move with the center of pump case 2 toward each other.By repeatedly and promptly changing the current potential in coil 21, piston 6,7 moves forward and backward.
In figure 3, the fuel allocation units 22 according to alternative plan of the present invention are shown.Substantially, when being vehicle fueling by fuel allocation units, the speed of distributing fuel is measured by fuel meter.The speed of the fuel of control setup monitor allocation, and send signal to Steam Recovery pump 1, Steam Recovery speed or pump rate are set as that equaling fuel distributes speed by this signal.If detector detects predetermined low-level hydrocarbon content, then Steam Recovery pump 1 is stopped.
Mainly above describe the present invention with reference to some embodiments.But as readily understood by the skilled person, other embodiments except above disclosure may fall in the scope of the present invention of following claims restriction equally.Therefore, the size and shape according to Steam Recovery pump of the present invention and fuel allocation units can be change in embodiments different in a large number, and this does not depart from the scope of the present invention.
Claims (14)
1. the Steam Recovery pump (1) for fuel allocation units (22), comprise pump case (2), this pump case has the first Room (3), second Room (4) and the 3rd Room (5), each described room (3, 4, 5) all there is steam port (8, 9, 12), the first piston (6) that described first Room (3) and the second Room (4) are included the first steam inlet valve (17) is separated, and the second piston (7) that described second Room (4) and the 3rd Room (5) are included the second steam inlet valve (18) is separated, wherein said first piston (6) and the second piston (7) are configured to reciprocally and relative to each other out of phase move, make described room (3, 4, 5) volume repeatedly reduces and increases, to enable steam described first, 3rd Room (3, 5) and between the second Room (4) flow.
2. Steam Recovery pump (1) according to claim 1, described steam port (8,9) in wherein said first Room (3) and the 3rd Room (5) is Steam Recovery entrance (8,9), and the steam port (12) in described second Room (4) is Steam Recovery outlet (12).
3. Steam Recovery pump (1) according to claim 1, described steam port (8,9) in wherein said first Room (3) and the 3rd Room (5) is Steam Recovery outlet (8,9), and the steam port (12) in described second Room (4) is Steam Recovery entrance (12).
4. Steam Recovery pump (1) according to claim 1, wherein said first steam inlet valve (17) and the second steam inlet valve (18) are boiler check valve.
5. Steam Recovery pump (1) according to claim 1, wherein all arranges boiler check valve (14,15,16) at each described steam port (8,9,12) place.
6. Steam Recovery pump (1) according to claim 1, wherein each described first piston (6) and the second piston (7) include magnetic device (19).
7. Steam Recovery pump (1) according to claim 1, wherein each described first piston (6) and the second piston (7) are made by magnetic material.
8. Steam Recovery pump (1) according to claim 6, wherein electromagnetic control apparatus (20) is set up in order to move described piston (6,7) by changing magnetic field.
9. Steam Recovery pump (1) according to claim 6, wherein said pump case (2) comprises coil (21), and this coil is powered with mobile described first piston (6) and the second piston (7).
10. Steam Recovery pump (1) according to claim 7, wherein said pump case (2) comprises coil (21), and this coil is powered with mobile described first piston (6) and the second piston (7).
11. Steam Recovery pumps (1) according to any one of claim 6 to 10, wherein said second Room (4) comprising: coil, and this coil is powered with mobile described first piston (6) and the second piston (7); And elastic element, be attached between described first piston (6) and the second piston (7).
12. Steam Recovery pumps (1) according to any one of claim 6 to 10, wherein said first Room (3) and the 3rd Room (5) include coil, these coils are powered with mobile described first piston (6) and the second piston (7), and wherein the first elastic element is attached between described first piston (6) and the first side wall being arranged in described first Room (3) of described pump case (2), and the second elastic element is attached between described second piston (7) and second sidewall being arranged in described 3rd Room (5) of described pump case (2).
13. Steam Recovery pumps (1) according to claim 11, wherein said first Room (3) and the 3rd Room (5) include coil, these coils are powered with mobile described first piston (6) and the second piston (7), and wherein the first elastic element is attached between described first piston (6) and the first side wall being arranged in described first Room (3) of described pump case (2), and the second elastic element is attached between described second piston (7) and second sidewall being arranged in described 3rd Room (5) of described pump case (2).
14. 1 kinds of fuel allocation units (22) refueled for vehicle, comprise according to Steam Recovery pump (1) in any one of the preceding claims wherein, in this Steam Recovery pump, steam suction nozzle is connected to described first Room (3) and the 3rd Room (5) or described second Room (4), in order to transport fuel vapour via vapor flow pipe.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2010/070814 WO2012089246A1 (en) | 2010-12-28 | 2010-12-28 | Vapour recovery pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103298731A CN103298731A (en) | 2013-09-11 |
| CN103298731B true CN103298731B (en) | 2015-10-07 |
Family
ID=44318221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080071002.XA Active CN103298731B (en) | 2010-12-28 | 2010-12-28 | Steam Recovery pump |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2658806B1 (en) |
| CN (1) | CN103298731B (en) |
| BR (1) | BR112013018755B1 (en) |
| WO (1) | WO2012089246A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3498660B1 (en) * | 2017-12-15 | 2021-08-18 | Wayne Fueling Systems Sweden AB | System for regulating a vapour recovery pump |
| NL2028155B1 (en) * | 2021-05-05 | 2022-11-23 | Bravotech Holding B V | Fluid displacement device as well as a check valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1350797A (en) * | 1970-09-25 | 1974-04-24 | Saporta J A | Magnetically operated pump |
| DE2949657C2 (en) * | 1979-12-11 | 1982-09-09 | Danfoss A/S, 6430 Nordborg | Valve arrangement for a hydraulic servo motor |
| EP0310254A2 (en) * | 1987-09-07 | 1989-04-05 | Framo Developments (U.K.) Limited | Reciprocating pump unit |
| DE4142411C1 (en) * | 1991-12-20 | 1993-05-06 | Tankanlagen Salzkotten Gmbh, 4796 Salzkotten, De | Petrol vapour extraction pump - has two pistons connected by crank in common cylinder housing |
| CN1168952A (en) * | 1996-06-19 | 1997-12-31 | 马强 | Three chambers piston pump |
| EP1783368A1 (en) * | 2005-11-07 | 2007-05-09 | Dresser Wayne Aktiebolag | Vapour recovery pump |
| EP1936193A1 (en) * | 2006-12-19 | 2008-06-25 | Dresser Wayne Ab | Vapour recovery pump and fuel dispenser |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080185045A1 (en) * | 2007-02-05 | 2008-08-07 | General Electric Company | Energy recovery apparatus and method |
| US20090191073A1 (en) * | 2008-01-25 | 2009-07-30 | General Electric Company | Magnetic pumping machines |
-
2010
- 2010-12-28 BR BR112013018755-7A patent/BR112013018755B1/en active IP Right Grant
- 2010-12-28 WO PCT/EP2010/070814 patent/WO2012089246A1/en active Application Filing
- 2010-12-28 EP EP20100798134 patent/EP2658806B1/en active Active
- 2010-12-28 CN CN201080071002.XA patent/CN103298731B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1350797A (en) * | 1970-09-25 | 1974-04-24 | Saporta J A | Magnetically operated pump |
| DE2949657C2 (en) * | 1979-12-11 | 1982-09-09 | Danfoss A/S, 6430 Nordborg | Valve arrangement for a hydraulic servo motor |
| EP0310254A2 (en) * | 1987-09-07 | 1989-04-05 | Framo Developments (U.K.) Limited | Reciprocating pump unit |
| DE4142411C1 (en) * | 1991-12-20 | 1993-05-06 | Tankanlagen Salzkotten Gmbh, 4796 Salzkotten, De | Petrol vapour extraction pump - has two pistons connected by crank in common cylinder housing |
| CN1168952A (en) * | 1996-06-19 | 1997-12-31 | 马强 | Three chambers piston pump |
| EP1783368A1 (en) * | 2005-11-07 | 2007-05-09 | Dresser Wayne Aktiebolag | Vapour recovery pump |
| EP1936193A1 (en) * | 2006-12-19 | 2008-06-25 | Dresser Wayne Ab | Vapour recovery pump and fuel dispenser |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012089246A1 (en) | 2012-07-05 |
| CN103298731A (en) | 2013-09-11 |
| EP2658806A1 (en) | 2013-11-06 |
| BR112013018755B1 (en) | 2022-06-28 |
| EP2658806B1 (en) | 2015-05-06 |
| BR112013018755A2 (en) | 2021-08-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Malmo, Sweden Applicant after: WAYNE FUELING SYSTEMS LLC Address before: Malmo, Sweden Applicant before: Dresser Wayne AB |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DRESSER WAYNE AB TO: WEIEN REFUELING SYSTEM SWEDISH COMPANY |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |