CN101454562B - Suction jet pump - Google Patents
Suction jet pump Download PDFInfo
- Publication number
- CN101454562B CN101454562B CN2007800190377A CN200780019037A CN101454562B CN 101454562 B CN101454562 B CN 101454562B CN 2007800190377 A CN2007800190377 A CN 2007800190377A CN 200780019037 A CN200780019037 A CN 200780019037A CN 101454562 B CN101454562 B CN 101454562B
- Authority
- CN
- China
- Prior art keywords
- spring
- jet pump
- suction jet
- valve body
- sealing
- 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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Links
- 238000007789 sealing Methods 0.000 claims description 29
- 238000012856 packing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract 2
- 239000000446 fuel Substances 0.000 description 20
- 239000000295 fuel oil Substances 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 14
- 239000002828 fuel tank Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
- F02M37/0058—Returnless fuel systems, i.e. the fuel return lines are not entering the fuel tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
- F02M37/0094—Saddle tanks; Tanks having partition walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
Abstract
The invention relates to a suction jet pump (8), consisting of a driving jet nozzle (10), a mixing tube (11), an intake opening (12), a working-fluid line (7) connected to the driving jet nozzle (10), and a valve (9) which is arranged with the working-fluid line (7) and whose housing (13) has an inlet (14) and an outlet (15). A throughflow opening (17) with a valve body (18) on both sides of the throughflow opening (17) is arranged in the housing (13) in such a way that the throughflow opening (17) can be closed on both the inlet side and the outlet side, and that at least one spring (25, 27, 28) is arranged inside the housing (13) in such a way that it holds the valve body (18) in a position closing the throughflow opening (17) on the outlet side until the system pressure is reached.
Description
Technical field
The present invention relates to a kind of suction jet pump, comprise the working medium pipe that drives nozzle, mixing tube, suction port, is connected, and be arranged on the valve in the working medium pipe with the driving nozzle.Suction jet pump is applied in the fuel tank of Motor Vehicle.
Background technique
Such suction jet pump uses in fuel tank, and so that fuel oil is delivered to supply unit from the zones of different of fuel tank, this supply unit is delivered to fuel oil the internal-combustion engine of Motor Vehicle from fuel tank.In order to drive suction jet pump, the part of the fuel oil carried by fuel pump is shunted, and be delivered to suction jet pump through the working medium pipe.When starting apparatus combustion engine, fuel pump should be as soon as possible with the fuel delivery of capacity to internal-combustion engine.In the working medium pipe, be provided with valve, this valve is just opened up to reaching system pressure for this reason, thereby particularly in start-up course, whole fuel oils of being carried at first is delivered to internal-combustion engine.
In order to improve the starting characteristic of Motor Vehicle, be increased in drainage tube with being known that the short time or be called the pressure in the feed conduit (Vorlaufleitung).During start-up course, improved to the short time power of fuel pump for this reason.But therefore cancelled the effect of valve in the working medium pipe, this valve should just be opened the working medium pipe when reaching system pressure.The shortcoming of this design is opened valve owing to pressure increases, and this valve to be separated suction jet pump with fuel delivery for start-up course.So the part of fuel oil arrives suction jet pump, and do not supply internal-combustion engine to use.Yet; In order to ensure during start-up course, supplying with enough fuel oils to internal-combustion engine; Must confirm like this size of fuel pump, promptly except the requirement in the increase at internal-combustion engine place, this fuel pump also provides the fuel delivery that is used for the increase of suction jet pump owing to the valve of opening.The fuel delivery of these two kinds of increases has caused the fuel pump over dimensioning.Such fuel pump needs obvious more structural space, and expense is more.
Summary of the invention
Therefore, the objective of the invention is to, propose a kind of suction jet pump, it is just worked when fuel oil supply system is worked with system pressure.
According to the present invention; This purpose realizes through following manner; Promptly in housing, be provided with through-flow mouthful, valve body is provided with through-flow mouthful of both sides like this, promptly both can also can close at outlet side at inlet side for this through-flow mouthful; And at least one spring is arranged on housing the inside like this, and promptly this spring remains at outlet side valve body to close on through-flow mouthful the position till reaching system pressure.
Through valve body being remained on the locational mode of closing through-flow mouth at outlet side, the valve in this working medium pipe that is arranged on suction jet pump cuts out under stress-free state by spring.In case fuel pump reaches system pressure, the power on the valve body of acting on is just greater than spring force, valve body moved from the position of closing through-flow mouthful at outlet side open thus.Valve therefore is opened and fuel oil can arrive suction jet pump.If the pressure rising has surpassed system pressure in start-up course, valve body overcomes spring force to be continued to move, and arrives the position of closing through-flow mouth at inlet side up to this valve body, thereby valve cuts out.But allow suction jet pump in the pressure range of preset, to work according to valve according to the present invention, wherein break off suction jet pump under this pressure range and on this pressure range the time.Realized that thus suction jet pump is only worked under standard conditions, yet when critical situation, promptly should guarantee at first that the fuel oil of being carried by fuel pump only arrives internal-combustion engine when internal-combustion engine is supplied with fuel oil.Therefore can confirm smaller size for fuel pump; Because the transmission power of fuel pump is also just determined by internal-combustion engine and suction jet pump when system pressure; Yet be higher than at fuel pump when working under the situation of system pressure; Because suction jet pump breaks off, transmission power is only through the internal-combustion engine decision.
When being made into Rectifier plate for through-flow mouthful, its formation is simple especially.
According to another favourable design proposal, valve body has two Sealings, and it concurs at inlet side and outlet side and at through-flow mouthful of other sealing seat, has realized reliable sealing thus.
Be made up of each packing ring in the structure that the Sealing of valve body is simple at therefore cost is low, these packing rings are arranged on the valve body.
According to another design proposal, Sealing is provided with about the both sides of flow direction at Rectifier plate like this, and promptly Sealing has been simplified the structure of valve body thus around through-flow mouthful.
In another design proposal; Be provided with second spring with respect to first spring; Wherein first spring is designed to the pressure of opening of valve; And second spring just allow valve body to continue motion when being higher than system pressure, realized thus when system pressure, in the limited position of the locational valve body of opening.Avoided when system pressure the motion of valve body on open position by this way.
Employed spring both can be a pressure spring, can be again draught spring, and its medi-spring is arranged between housing and the valve body.
If working pressure spring, this pressure spring also are arranged in another design proposal between valve body and the through-flow mouth.In order to guide better and to hold pressure spring, in another design proposal, on valve body, be formed with convex shoulder.
Description of drawings
In a plurality of embodiments, illustrate in greater detail the present invention.At this, shown in the figure:
Fig. 1 has supply unit and according to the schematic representation of the fuel tank of suction jet pump of the present invention;
Fig. 2 to 4 is valve schematic representation on diverse location of the suction jet pump among Fig. 1; With
Fig. 5 to 7 is other mode of executions according to the valve of Fig. 2.
Embodiment
The fuel tank 1 of the schematically illustrated Motor Vehicle of Fig. 1, it has the supply unit 2 that is arranged on wherein, is used for fuel delivery to internal-combustion engine 3.This supply unit 2 has the fuel pump 5 that is driven by motor 4, and is connected with internal-combustion engine 3 through feed conduit (Vorlaufleitung) 6.Working medium pipe 7 leads to suction jet pump 8 (die Saugstrahlpumpe) from feed conduit 6, and this suction jet pump is with fuel delivery to supply unit 2.Except working medium pipe 7 (Treibmittelleitung); Suction jet pump 8 comprises the valve 9 that is arranged in the working medium pipe 7, the driving nozzle 10 that is connected with working medium pipe 7, mixing tube 11 and suction port 12; Fuel oil is through this suction port; Through the fuel oil that from drive nozzle 10, overflows, suck in the mixing tube 11.
Fig. 2 schematically shows first mode of execution of the valve 9 among Fig. 1.Flow direction marks with arrow.This valve 9 comprises valve chest 13, and this housing has inlet 14 and outlet 15.In valve chest 13, be provided with Rectifier plate 16, this Rectifier plate has through-flow mouthful 17.Valve 9 has valve body 18, and this valve body has two disk- shaped regions 19,20, and the middleware that the zone passage of these two plate-likes is passed through-flow mouthful 17 interconnects, this disk- shaped regions 19,20 is arranged on the inlet side and the outlet side of through-flow mouth 17.These two zones 19,20 have the Sealing 21,22 of plate-like, and the sealing seat 23,24 of sealing part and Rectifier plate 16 concurs.Be provided with pressure spring 25 at outlet side, this pressure spring make valve body 18 reverse in flow direction move.This illustrates stress-free state, in this state, does not have fuel oil to flow through valve 9.Valve body 18 is resisted against on the Rectifier plate 16 at outlet side owing to spring force, and wherein Sealing 21 concurs with sealing seat 23 and thus through-flow mouthful 17 closed.
Fig. 4 shows the valve 9 during the start-up course of internal-combustion engine.Control fuel pump like this at this, promptly pressure short time ground in feed conduit increases.Therefore the pressure that increases works in the inlet 14 of working medium pipe and valve 9 similarly.Because less than acting on the power on the valve body 18,, be resisted against up to the Sealing 22 in zone 20 on the sealing seat 24 of inlet side of Rectifier plate 16 so valve body 18 continues streamwises and moves based on the pressure that increases by spring force that pressure spring 25 produced.Therefore through-flow mouthful 17 is closed, so that during start-up course, there is not fuel oil to arrive suction jet pump.
On the layout of pressure spring 25, be different from valve at the valve shown in Fig. 59 according to Fig. 2.This pressure spring 25 is supported between the zone 20 of Rectifier plate 16 and valve body 18.Should have convex shoulder 26 in zone 20 for this reason.This convex shoulder 26 is on the one hand with the guiding device of doing pressure spring 25, and on the other hand, when with pressure spring 25 when pinched together, guaranteeing has enough structure spaces on extending axially.
Fig. 6 shows the valve 9 with draught spring 27; This draught spring is fixed between housing 13 and the valve body 18 at inlet side; And make valve body 18 reverse mobile in this wise under stress-free state in flow direction, promptly Sealing 21 concurs with the sealing seat 23 of Rectifier plate 16, with cut-off valve 9.
Fig. 7 has illustrated the valve 9 when system pressure in another design proposal.Be provided with two pressure springs 25,28 in the outlet port at this.The layout of this pressure spring 25 is with as in Fig. 2 to 4.Pressure spring 28 designs firmlyer and has shorter structure length; Wherein the length of pressure spring 28 and spring rate are selected like this; Make that promptly streamwise moves valve body 18 owing to act on power above that when system pressure; Be resisted against on the pressure spring 28 up to it, and that pressure spring 28 is not pinched together.On this position, valve 9 is positioned on the open position.In such a way, produced the limited position when the system pressure for valve body 18.When in start-up course, continuing boost pressure, the power on the valve body 18 of acting on is greater than the spring force of pressure spring 25,28, thereby the situation that makes valve is as among Fig. 4.
Claims (14)
1. suction jet pump comprises the working medium pipe that drives nozzle, mixing tube, suction port, is connected with said driving nozzle, and is arranged on the valve in the said working medium pipe; Said valve housing has entrance and exit, it is characterized in that, in said housing (13), is provided with through-flow mouthful (17); Valve body (18) is provided with in said through-flow mouthful of (17) both sides like this; Be that said through-flow mouthful (17) both can also can be closed at outlet side at inlet side, and at least one spring (25,27; 28) be arranged on said housing (13) the inside like this; Be that said spring remains at outlet side said valve body (18) to close on the position of said through-flow mouthful (17) till reaching system pressure, wherein, be provided with second spring (28) with respect to first spring (25); Wherein said first spring (25) is designed to the pressure of opening of said valve (9), and said second spring (28) only just allows said valve body (18) to continue motion when being higher than system pressure.
2. suction jet pump according to claim 1 is characterized in that, said through-flow mouth is designed to Rectifier plate (16).
3. suction jet pump according to claim 1 is characterized in that, said valve body (18) has two Sealings (21,22), said Sealing inlet side and outlet side each with a sealing seat (23, the 24) acting in conjunction of said through-flow mouthful (17).
4. suction jet pump according to claim 2 is characterized in that, said valve body (18) has two Sealings (21,22), said Sealing inlet side and outlet side each with a sealing seat (23, the 24) acting in conjunction of said through-flow mouthful (17).
5. suction jet pump according to claim 3 is characterized in that, said Sealing (21,22) is a packing ring.
6. suction jet pump according to claim 4 is characterized in that, said Sealing (21,22) is a packing ring.
7. suction jet pump according to claim 1 is characterized in that, said Sealing (21,22) is provided with about the both sides of flow direction at said Rectifier plate (16) like this, and promptly said Sealing is around said through-flow mouthful (17).
8. suction jet pump according to claim 2 is characterized in that, said Sealing (21,22) is provided with about the both sides of flow direction at said Rectifier plate (16) like this, and promptly said Sealing is around said through-flow mouthful (17).
9. according to each described suction jet pump in the claim 1 to 8, it is characterized in that at least one spring (25,28) is a pressure spring.
10. according to each described suction jet pump in the claim 1 to 8, it is characterized in that at least one spring (27) is a draught spring.
11. suction jet pump according to claim 9 is characterized in that, said spring (25,27,28) is arranged between said housing (13) and the said valve body (18).
12. suction jet pump according to claim 10 is characterized in that, said spring (25,27,28) is arranged between said housing (13) and the said valve body (18).
13. suction jet pump according to claim 9 is characterized in that, said spring (25,28) is arranged between said valve body (18) and said through-flow mouthful (17).
14. suction jet pump according to claim 13 is characterized in that, on said valve body (18), is formed with convex shoulder (26) to hold said spring (25,28).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006024456.7 | 2006-05-24 | ||
| DE102006024456A DE102006024456A1 (en) | 2006-05-24 | 2006-05-24 | eductor |
| PCT/EP2007/054945 WO2007135149A1 (en) | 2006-05-24 | 2007-05-22 | Suction jet pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101454562A CN101454562A (en) | 2009-06-10 |
| CN101454562B true CN101454562B (en) | 2012-06-20 |
Family
ID=38231095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800190377A Active CN101454562B (en) | 2006-05-24 | 2007-05-22 | Suction jet pump |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090252618A1 (en) |
| EP (1) | EP2029884B1 (en) |
| JP (1) | JP4637264B2 (en) |
| CN (1) | CN101454562B (en) |
| BR (1) | BRPI0712266B8 (en) |
| DE (2) | DE102006024456A1 (en) |
| WO (1) | WO2007135149A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002432A (en) * | 2007-06-21 | 2009-01-08 | Yamaha Motor Co Ltd | Remaining gas amount calculation device |
| DE102008044904A1 (en) * | 2008-08-29 | 2010-03-04 | Continental Automotive Gmbh | Fuel supply system for a motor vehicle |
| JP2012132383A (en) * | 2010-12-22 | 2012-07-12 | Denso Corp | Fuel supply device |
| US8726886B2 (en) | 2011-08-24 | 2014-05-20 | Robert Bosch Gmbh | Fuel supply system and anti-siphon jet pump |
| KR101571081B1 (en) * | 2012-02-02 | 2015-11-23 | 도요타 지도샤（주） | Fuel supply device |
| DE102016218294B3 (en) | 2016-09-23 | 2018-03-08 | Continental Automotive Gmbh | Fuel delivery unit |
| US10190550B2 (en) * | 2016-11-30 | 2019-01-29 | GM Global Technology Operations LLC | Condensate dispersion assembly |
| US11105437B2 (en) * | 2017-07-03 | 2021-08-31 | Continental Automotive Systems, Inc. | Combined inlet and outlet check valve seat |
| WO2020106430A1 (en) * | 2018-11-20 | 2020-05-28 | Walbro Llc | Fuel pump assembly with electric motor fuel pump and fluid driven fuel pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255711A (en) * | 1992-08-28 | 1993-10-26 | Hughes Aircraft Company | Spring-loaded pressure regulating valve including rolling diaphragm and compensation for variation of spring force with diaphragm displacement |
| US6026850A (en) * | 1996-02-27 | 2000-02-22 | Global Agricultural Technology And Engineering, Llc | Pressure regulating valve |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131235A (en) * | 1976-11-01 | 1978-12-26 | Irrigation Specialties Company | Dual-function valve |
| DE4224981C2 (en) * | 1992-07-29 | 2003-06-26 | Bosch Gmbh Robert | Device for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle |
| JP3303708B2 (en) * | 1997-01-31 | 2002-07-22 | 三菱電機株式会社 | Vehicle fuel supply system |
| JPH1150925A (en) * | 1997-07-30 | 1999-02-23 | Unisia Jecs Corp | Fuel suction pump |
| JPH11294299A (en) * | 1998-04-10 | 1999-10-26 | Toyota Autom Loom Works Ltd | Fuel injection valve |
| JP2000045909A (en) * | 1998-08-04 | 2000-02-15 | Makita:Kk | Pre-injection fuel injection valve with two-stage nozzle port area characteristics |
| US6209578B1 (en) * | 1998-12-23 | 2001-04-03 | Global Agricultural Technology And Engineering, Llc | Constant flow valve |
| US6343589B1 (en) * | 2000-02-01 | 2002-02-05 | Walbro Corporation | Fuel system with jet pump switching regulator |
| DE10222895A1 (en) * | 2002-05-23 | 2003-12-11 | Bosch Gmbh Robert | High pressure accumulator for fuel injection systems with integrated pressure control valve |
| DE10237050B3 (en) * | 2002-08-09 | 2004-04-15 | Siemens Ag | eductor |
| DE102004003114A1 (en) * | 2004-01-21 | 2005-08-11 | Siemens Ag | Fuel delivery unit |
| DE102004007878A1 (en) * | 2004-02-18 | 2005-09-15 | Ti Automotive (Neuss) Gmbh | Fuel supply system and method for controlling the fuel supply |
| DE102004049286A1 (en) * | 2004-10-09 | 2006-04-20 | Robert Bosch Gmbh | Device for conveying fuel |
-
2006
- 2006-05-24 DE DE102006024456A patent/DE102006024456A1/en not_active Withdrawn
-
2007
- 2007-05-22 JP JP2009511509A patent/JP4637264B2/en active Active
- 2007-05-22 US US12/227,665 patent/US20090252618A1/en not_active Abandoned
- 2007-05-22 DE DE502007001750T patent/DE502007001750D1/en active Active
- 2007-05-22 WO PCT/EP2007/054945 patent/WO2007135149A1/en active Application Filing
- 2007-05-22 BR BRPI0712266A patent/BRPI0712266B8/en active IP Right Grant
- 2007-05-22 EP EP07729384A patent/EP2029884B1/en active Active
- 2007-05-22 CN CN2007800190377A patent/CN101454562B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255711A (en) * | 1992-08-28 | 1993-10-26 | Hughes Aircraft Company | Spring-loaded pressure regulating valve including rolling diaphragm and compensation for variation of spring force with diaphragm displacement |
| US6026850A (en) * | 1996-02-27 | 2000-02-22 | Global Agricultural Technology And Engineering, Llc | Pressure regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2029884B1 (en) | 2009-10-14 |
| BRPI0712266A2 (en) | 2012-01-17 |
| BRPI0712266B8 (en) | 2023-01-17 |
| JP2009537744A (en) | 2009-10-29 |
| CN101454562A (en) | 2009-06-10 |
| BRPI0712266B1 (en) | 2019-04-09 |
| US20090252618A1 (en) | 2009-10-08 |
| WO2007135149A1 (en) | 2007-11-29 |
| EP2029884A1 (en) | 2009-03-04 |
| JP4637264B2 (en) | 2011-02-23 |
| DE502007001750D1 (en) | 2009-11-26 |
| DE102006024456A1 (en) | 2007-11-29 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230412 Address after: Regensburg, Germany Patentee after: WeiPai Technology Co.,Ltd. Address before: Hannover Patentee before: CONTINENTAL AUTOMOTIVE GmbH |
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| TR01 | Transfer of patent right |