US20140109600A1 - Cryogenic Pump - Google Patents
Cryogenic Pump Download PDFInfo
- Publication number
- US20140109600A1 US20140109600A1 US14/142,830 US201314142830A US2014109600A1 US 20140109600 A1 US20140109600 A1 US 20140109600A1 US 201314142830 A US201314142830 A US 201314142830A US 2014109600 A1 US2014109600 A1 US 2014109600A1
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- US
- United States
- Prior art keywords
- pump
- cryogenic
- cryogenic pump
- valve
- valve member
- 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.)
- Abandoned
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Classifications
-
- 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
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
- F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
-
- 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
-
- 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
- F04B53/108—Valves characterised by the material
Definitions
- the present invention relates to a cryogenic pump and particularly to a check valve for a cryogenic piston pump
- a cryogenic pump that utilizes a piston as the pumping member has a pumping chamber with an outlet port from the pumping chamber communicating with a conduit for the pumped liquid.
- a check valve is located in the conduit to prevent backflow of liquid from the conduit to the pumping chamber.
- a check valve typically has its inlet and outlet in axial alignment with one another.
- Cryogenic pumps are typically used in industrial plants for example, in plant for the separation or liquefaction of industrial gases.
- Cryogenic liquefied gases are becoming increasingly widely used.
- LNG liquefied natural gas
- HSVs heavy goods vehicles
- Piston pumps have been developed in order to transfer the LNG from a storage vessel on board the vehicle to the vehicle's engine. Such a pump needs to be quite compact and easy to maintain.
- the pump typically has a vaporizer associated with it.
- a cryogenic pump for pumping liquid natural gas comprises:
- the retaining member comprises a sleeve for guiding the valve member.
- the sleeve is preferably formed integrally with the retaining member.
- valve member is spring-loaded.
- the valve member preferably comprises a cylindrical body and a frustoconical head, which, when the check valve is in its closed position, sealingly engages, under bias of the spring, a complementary valve seat formed in the pump housing.
- the head is preferably formed from plastic material or polytetrafluoroethylene (PTFE).
- PTFE polytetrafluoroethylene
- the valve seat is preferably formed from metal such as stainless steel).
- the spring is a compression spring.
- the compression spring is preferably seated in a detent formed in the retaining member.
- FIG. 1 is a schematic perspective view of the pump
- FIG. 2 is a sectional side elevation of the warm end of the pump shown in FIG. 1 ;
- FIG. 3 is a sectional elevation of the pumping chamber of the pump shown in FIG. 1 ;
- FIG. 4 is an enlarged sectional elevation of part of the pumping chamber shown in FIG. 3 illustrating the check valve in the outlet part of the pumping chamber.
- cryogenic pump 2 of the kind having a cold end 3 adapted to be immersed in a volume of cryogenic liquid, not shown, to be supplied to, for example, a combustion engine.
- Pump 2 is generally of the same kind as that disclosed in U.S. Pat. No. 7,293,418, save that it does not include an accumulator. Instead, pump 2 has a pumping chamber communicating directly with a vaporizer or like heater.
- the disclosure of U.S. Pat. No. 7,293,418 is hereby incorporated by reference herein in its entirety.
- Cryogenic pump 2 has a warm end 5 opposite cold end 3 . Warm end 5 is not intended for immersion in the cryogenic liquid.
- Pump 2 has a housing 4 of generally elongate configuration with an axial piston 6 and piston shaft 7 .
- Piston 6 is able, in operation, to draw cryogenic liquid into, and force cryogenic liquid out of, a pumping chamber 8 defined within housing 4 .
- Pumping chamber 8 has an inlet 9 for cryogenic liquid communicating with a hollow cylindrical cryogenic liquid intake member 11 typically fitted with a filter 11 a effective to prevent small solid particles from entering the pump.
- Outlet port 10 for the discharge of cryogenic liquid.
- outlet port 10 houses a check valve 12 .
- Outlet port 10 is connected to a relatively small diameter conduit 13 which extends from cold end 3 to warm end 5 of pump 2 .
- Conduit 13 terminates in an annular heat exchange device 15 , in which the cryogenic liquid is vaporized by indirect heat exchange with a relatively high temperature heat exchange fluid.
- the cryogenic liquid is LNG, and pump 2 is intended to supply the natural gas to an engine (not shown), the heat exchange fluid can be the aqueous liquid that is used to cool the engine.
- the heat exchange device 15 is provided with an outlet 99 (see FIG.
- a drive chamber 23 for piston 6 At warm end 5 of pump 2 there is provided a drive chamber 23 for piston 6 .
- a hydraulic drive is employed, there being an inlet port 25 and an outlet port 17 for hydraulic liquid, but an electrical, pneumatic or mechanical drive could alternatively be used.
- the drive arrangements may in general be similar to those disclosed in U.S. Pat. No. 7,293,418 for the pump described and shown therein.
- Piston 6 has two strokes. In its upward stroke (that is in its stroke away from cold end 3 , a flow of cryogenic liquid through inlet 9 is induced. In its downward stroke (that is in its stroke away from warm end 5 ) a flow of cryogenic liquid through outlet port 10 is provided.
- Pump 2 is capable of generating a high delivery pressure, typically in the order of 300 bar, or higher.
- Check valve 12 is best viewed in FIG. 4 .
- Check valve 12 is located in pump housing 4 at outlet port 10 .
- Check valve 12 has a spring-loaded valve member 14 which is retained within housing 4 by a demountable retaining member 16 accessible from the exterior of pump housing 4 .
- Retaining member 16 may make a screw-threaded engagement with pump housing 4 and may have a configuration such that access can be gained to valve member 14 from outside housing 4 by means of a specific tool (not shown) to dismantle the part, in association with a standard wrench.
- retaining member 16 comprises a resilient O-ring seal 40 to prevent leakage of fluid out of pump 16 via the screw-threads of retaining member 16 .
- Retaining member 16 has a sleeve 22 for guiding valve member 14 .
- Sleeve 22 is typically formed integrally with retaining member 16 .
- Valve member 14 has a cylindrical body 24 and a frustoconical head 26 .
- check valve 12 remains open but it closes for the intake stroke of piston 6 . If the pump is idle, check valve 12 remains closed.
- head 26 makes a sealing engagement, under the bias of a compression spring 28 and any fluid pressure in outlet 20 , with a complementary valve seat 30 formed in pump housing 4 .
- head 26 and the rest of valve member 14 are formed of a plastics material which is able to be used at cryogenic temperatures. PTFE is one such plastics material.
- housing 4 and, in particular, valve seat 30 is made of a material that in addition to being a metallic engineering material is suitable for use at cryogenic temperatures. Stainless steel is one such material.
- Compression spring 28 is seated in a detent 32 in retaining member 16 .
- the bias of compression spring 28 acts in a valve-closing direction.
- valve 12 remains in a closed position preventing back flow of fluid from conduit 13 into pumping chamber 8 .
- the basis of the spring is effective to keep check valve 12 closed when there is no cryogenic liquid pressure acting on valve member 14 irrespective of the attitude of cryogenic pump 2 .
- the cryogenic pump is typically positioned with its axis at angle to the vertical.
- Valve 12 has an inlet 18 which is axial with valve member 14 and a radial outlet 20 which is transverse to the axis of valve member 14 .
- Check valve 12 when open, permits cryogenic liquid to flow from inlet 18 to outlet 20 .
- the flow path has an axial element being defined between sleeve 22 and a complementary portion of housing 4 and a transverse radial element through outlet 20 , there being a transverse radial passage 41 through sleeve 22 of retaining member 16 to aid flow of the cryogenic liquid.
- check valve 12 in housing 4 of cryogenic pump 2 keeps down the dead volume between piston 6 at the end of the downward stroke, namely, the stroke away from warm end 5 , and the sealing area of check valve 12 , and thereby avoids loss of pump efficiency.
- valve member 14 undergoes wear in use, so is exchanged for an identical such member after a chosen period of time.
- pump 2 is withdrawn from the tank (not shown) containing cryogenic liquid in which it is typically located, pump 2 allowed to return to ambient temperature, and retaining member 16 removed.
Abstract
A cryogenic pump is typically used to supply high pressure natural gas to an engine. The pump has a piston operable to discharge cryogenic liquid from a pumping chamber within a pump housing. The cryogenic liquid exits the chamber through an outlet port in which a check valve is positioned. The check valve has a valve member which is loaded by a spring and is retained by a retaining member accessible from outside the housing. The check valve has an inlet which is axial with the valve member and an outlet which is transverse to the axis of the valve member.
Description
- This application is a continuation of International Application No. PCT/CA2012/050416 having an international filing date of Jun. 22, 2012 entitled “Cryogenic Pump”. The '416 international application claimed priority benefits, in turn, from European Patent Application No. 11352008.4 filed on Jun. 29, 2011. The '416 international application is hereby incorporated by reference herein in its entirety.
- The present invention relates to a cryogenic pump and particularly to a check valve for a cryogenic piston pump
- A cryogenic pump that utilizes a piston as the pumping member has a pumping chamber with an outlet port from the pumping chamber communicating with a conduit for the pumped liquid. Typically, a check valve is located in the conduit to prevent backflow of liquid from the conduit to the pumping chamber. A check valve typically has its inlet and outlet in axial alignment with one another.
- Cryogenic pumps are typically used in industrial plants for example, in plant for the separation or liquefaction of industrial gases. Cryogenic liquefied gases are becoming increasingly widely used. For example, liquefied natural gas (LNG) is now being used as an automotive fuel, particularly for heavy goods vehicles (HGVs). Piston pumps have been developed in order to transfer the LNG from a storage vessel on board the vehicle to the vehicle's engine. Such a pump needs to be quite compact and easy to maintain. The pump typically has a vaporizer associated with it.
- An example of a cryogenic pump suitable for use with LNG on an HGV is given in U.S. Pat. No. 7,293,418.
- A cryogenic pump for pumping liquid natural gas comprises:
-
- (a) a piston operable to discharge cryogenic liquid from a pumping chamber within a pump housing;
- (b) an outlet port from the pumping chamber, the outlet port disposed in the pump housing; and
- (c) a check valve in the outlet port, the check valve comprising:
- (i) a valve member;
- (ii) a demountable retaining member accessible from the exterior of the pump housing;
- (iii) an inlet axial with the valve member and transverse to the axis of the pumping chamber of the cryogenic pump; and
- (iv) an outlet transverse to the axis of the valve member and parallel to the axis of the pumping chamber of the cryogenic pump.
- In one embodiment, the retaining member comprises a sleeve for guiding the valve member. The sleeve is preferably formed integrally with the retaining member.
- In another embodiment, the valve member is spring-loaded. The valve member preferably comprises a cylindrical body and a frustoconical head, which, when the check valve is in its closed position, sealingly engages, under bias of the spring, a complementary valve seat formed in the pump housing. The head is preferably formed from plastic material or polytetrafluoroethylene (PTFE). The valve seat is preferably formed from metal such as stainless steel).
- In another embodiment, the spring is a compression spring. The compression spring is preferably seated in a detent formed in the retaining member.
- A cryogenic pump according to the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
-
FIG. 1 is a schematic perspective view of the pump; -
FIG. 2 is a sectional side elevation of the warm end of the pump shown inFIG. 1 ; -
FIG. 3 is a sectional elevation of the pumping chamber of the pump shown inFIG. 1 ; and -
FIG. 4 is an enlarged sectional elevation of part of the pumping chamber shown inFIG. 3 illustrating the check valve in the outlet part of the pumping chamber. - The drawings are not to scale.
- Referring to the drawings, there is shown generally a
cryogenic pump 2 of the kind having acold end 3 adapted to be immersed in a volume of cryogenic liquid, not shown, to be supplied to, for example, a combustion engine.Pump 2 is generally of the same kind as that disclosed in U.S. Pat. No. 7,293,418, save that it does not include an accumulator. Instead,pump 2 has a pumping chamber communicating directly with a vaporizer or like heater. The disclosure of U.S. Pat. No. 7,293,418 is hereby incorporated by reference herein in its entirety.Cryogenic pump 2 has awarm end 5 oppositecold end 3.Warm end 5 is not intended for immersion in the cryogenic liquid.Pump 2 has ahousing 4 of generally elongate configuration with anaxial piston 6 and piston shaft 7. Piston 6 is able, in operation, to draw cryogenic liquid into, and force cryogenic liquid out of, a pumping chamber 8 defined withinhousing 4. Pumping chamber 8 has an inlet 9 for cryogenic liquid communicating with a hollow cylindrical cryogenicliquid intake member 11 typically fitted with afilter 11 a effective to prevent small solid particles from entering the pump. - Pumping chamber 8 has an
outlet port 10 for the discharge of cryogenic liquid. With particular reference toFIGS. 3 and 4 ,outlet port 10 houses acheck valve 12.Outlet port 10 is connected to a relativelysmall diameter conduit 13 which extends fromcold end 3 towarm end 5 ofpump 2.Conduit 13 terminates in an annularheat exchange device 15, in which the cryogenic liquid is vaporized by indirect heat exchange with a relatively high temperature heat exchange fluid. (If, for example, the cryogenic liquid is LNG, andpump 2 is intended to supply the natural gas to an engine (not shown), the heat exchange fluid can be the aqueous liquid that is used to cool the engine.) Theheat exchange device 15 is provided with an outlet 99 (seeFIG. 2 ) for vaporized natural gas and aninlet 19 andoutlet 21 for the heat exchange fluid. Typically, there is within the heat exchange device a passage (not shown) for the cryogenic liquid in heat exchange relationship with another passage (not shown) for the heat exchange fluid. Flow of the cryogenic liquid through its passage causes it to vaporize. - At
warm end 5 ofpump 2 there is provided adrive chamber 23 forpiston 6. Typically, a hydraulic drive is employed, there being aninlet port 25 and anoutlet port 17 for hydraulic liquid, but an electrical, pneumatic or mechanical drive could alternatively be used. The drive arrangements may in general be similar to those disclosed in U.S. Pat. No. 7,293,418 for the pump described and shown therein.Piston 6 has two strokes. In its upward stroke (that is in its stroke away fromcold end 3, a flow of cryogenic liquid through inlet 9 is induced. In its downward stroke (that is in its stroke away from warm end 5) a flow of cryogenic liquid throughoutlet port 10 is provided.Pump 2 is capable of generating a high delivery pressure, typically in the order of 300 bar, or higher. - Check
valve 12 is best viewed inFIG. 4 . Checkvalve 12 is located inpump housing 4 atoutlet port 10. Checkvalve 12 has a spring-loaded valve member 14 which is retained withinhousing 4 by a demountable retainingmember 16 accessible from the exterior ofpump housing 4. Retainingmember 16 may make a screw-threaded engagement withpump housing 4 and may have a configuration such that access can be gained to valve member 14 fromoutside housing 4 by means of a specific tool (not shown) to dismantle the part, in association with a standard wrench. In its normalposition retaining member 16 comprises a resilient O-ring seal 40 to prevent leakage of fluid out ofpump 16 via the screw-threads of retainingmember 16. Retainingmember 16 has asleeve 22 for guiding valve member 14.Sleeve 22 is typically formed integrally with retainingmember 16. - Valve member 14 has a
cylindrical body 24 and afrustoconical head 26. During the deliverystroke check valve 12 remains open but it closes for the intake stroke ofpiston 6. If the pump is idle,check valve 12 remains closed. Whencheck valve 12 is in its closed position,head 26 makes a sealing engagement, under the bias of acompression spring 28 and any fluid pressure in outlet 20, with acomplementary valve seat 30 formed inpump housing 4. Typically,head 26 and the rest of valve member 14 are formed of a plastics material which is able to be used at cryogenic temperatures. PTFE is one such plastics material. - Similarly,
housing 4 and, in particular,valve seat 30 is made of a material that in addition to being a metallic engineering material is suitable for use at cryogenic temperatures. Stainless steel is one such material.Compression spring 28 is seated in adetent 32 in retainingmember 16. The bias ofcompression spring 28 acts in a valve-closing direction. Thus, when there is no cryogenic liquid pressure acting in the opposite direction,valve 12 remains in a closed position preventing back flow of fluid fromconduit 13 into pumping chamber 8. Moreover, the basis of the spring is effective to keepcheck valve 12 closed when there is no cryogenic liquid pressure acting on valve member 14 irrespective of the attitude ofcryogenic pump 2. (In practice, the cryogenic pump is typically positioned with its axis at angle to the vertical.) -
Valve 12 has aninlet 18 which is axial with valve member 14 and a radial outlet 20 which is transverse to the axis of valve member 14. Checkvalve 12, when open, permits cryogenic liquid to flow frominlet 18 to outlet 20. The flow path has an axial element being defined betweensleeve 22 and a complementary portion ofhousing 4 and a transverse radial element through outlet 20, there being a transverseradial passage 41 throughsleeve 22 of retainingmember 16 to aid flow of the cryogenic liquid. - The position of
check valve 12 inhousing 4 ofcryogenic pump 2 keeps down the dead volume betweenpiston 6 at the end of the downward stroke, namely, the stroke away fromwarm end 5, and the sealing area ofcheck valve 12, and thereby avoids loss of pump efficiency. - Typically, valve member 14 undergoes wear in use, so is exchanged for an identical such member after a chosen period of time. In order to exchange valve member 14,
pump 2 is withdrawn from the tank (not shown) containing cryogenic liquid in which it is typically located, pump 2 allowed to return to ambient temperature, and retainingmember 16 removed. - While particular elements, embodiments and applications of the present invention have been shown and described, it will be understood, that the invention is not limited thereto since modifications can be made by those skilled in the art without departing from the scope of the present disclosure, particularly in light of the foregoing teachings.
Claims (11)
1. A cryogenic pump for pumping liquid natural gas comprising:
(a) a piston operable to discharge cryogenic liquid from a pumping chamber within a pump housing;
(b) an outlet port from said pumping chamber, said outlet port disposed in said pump housing; and
(c) a check valve in said outlet port, said check valve comprising:
(i) a valve member;
(ii) a demountable retaining member accessible from the exterior of said pump housing;
(iii) an inlet axial with said valve member and transverse to the axis of said pumping chamber of said cryogenic pump; and
(iv) an outlet transverse to the axis of said valve member and parallel to the axis of said pumping chamber of said cryogenic pump.
2. The cryogenic pump of claim 1 , wherein said retaining member comprises a sleeve for guiding said valve member.
3. The cryogenic pump of claim 2 , wherein said sleeve is integral with said retaining member.
4. The cryogenic pump of claim 1 , wherein said valve member is spring-loaded.
5. The cryogenic pump of claim 4 , wherein said valve member comprises a cylindrical body and a frustoconical head, which, when said check valve is in its closed position, sealingly engages, under bias of said spring, a complementary valve seat formed in said pump housing.
6. The cryogenic pump of claim 5 , wherein said head is formed from plastic material.
7. The cryogenic pump of claim 5 , wherein said head is formed from polytetrafluoroethylene.
8. The cryogenic pump of claim 5 , wherein said valve seat is formed from metal.
9. The cryogenic pump of claim 8 , wherein said valve seat is formed from stainless steel.
10. The cryogenic pump of claim 4 , wherein said spring is a compression spring.
11. The cryogenic pump of claim 10 , wherein said compression spring is seated in a detent formed in said retaining member.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11352008A EP2541062A1 (en) | 2011-06-29 | 2011-06-29 | Cryogenic pump |
PCT/CA2012/050416 WO2013000077A1 (en) | 2011-06-29 | 2012-06-22 | Cryogenic pump |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2012/050416 Continuation WO2013000077A1 (en) | 2011-06-29 | 2012-06-22 | Cryogenic pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140109600A1 true US20140109600A1 (en) | 2014-04-24 |
Family
ID=44862873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/142,830 Abandoned US20140109600A1 (en) | 2011-06-29 | 2013-12-28 | Cryogenic Pump |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140109600A1 (en) |
EP (1) | EP2541062A1 (en) |
WO (1) | WO2013000077A1 (en) |
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US20160377068A1 (en) * | 2015-06-29 | 2016-12-29 | Caterpillar Inc. | Hydraulic Drive Multi-Element Cryogenic Pump |
WO2017023643A1 (en) * | 2015-08-06 | 2017-02-09 | Caterpillar Inc. | Cryogenic pump for liquefied natural gas |
US20190145392A1 (en) * | 2017-11-13 | 2019-05-16 | Caterpillar Inc. | Cryogenic pump |
US11073218B2 (en) | 2014-07-23 | 2021-07-27 | Bs&B Innovations Limited | In-line pressure relief valve and rupture disk |
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CN104279135B (en) * | 2013-07-11 | 2018-10-16 | 西港能源有限公司 | Low-pressure low-temperature pump group part |
DE102016210752A1 (en) | 2016-06-16 | 2017-12-21 | Robert Bosch Gmbh | Feed pump for cryogenic fuels and fuel delivery system |
DE102016210726A1 (en) | 2016-06-16 | 2017-12-21 | Robert Bosch Gmbh | Conveying device for cryogenic fuels |
DE102016210728A1 (en) | 2016-06-16 | 2017-12-21 | Robert Bosch Gmbh | Feed pump for cryogenic fuels and fuel delivery system |
CN106121962A (en) * | 2016-06-29 | 2016-11-16 | 中材高新成都能源技术有限公司 | LNG cryopump |
CA3047852A1 (en) | 2016-12-23 | 2018-06-28 | Westport Power Inc. | Apparatus and method for filtering cryogenic fluid |
DE102017219224A1 (en) * | 2017-10-26 | 2019-05-02 | Robert Bosch Gmbh | Cryogenic fuel fuel delivery system, method of operating a fuel delivery system for cryogenic fuels |
DE102017222204A1 (en) | 2017-12-07 | 2019-06-13 | Robert Bosch Gmbh | Fuel delivery device for cryogenic fuels |
DE102017222202A1 (en) | 2017-12-07 | 2019-06-13 | Robert Bosch Gmbh | Fuel delivery device for cryogenic fuels |
DE102017222382A1 (en) | 2017-12-11 | 2019-06-13 | Robert Bosch Gmbh | Method for operating a piston pump, piston pump |
DE102017222419A1 (en) | 2017-12-11 | 2019-06-13 | Robert Bosch Gmbh | Fuel delivery device for cryogenic fuels |
DE102017012218A1 (en) | 2017-12-11 | 2019-06-13 | Robert Bosch Gmbh | Fuel delivery device for cryogenic fuels |
DE102018200075A1 (en) | 2018-01-04 | 2019-07-04 | Robert Bosch Gmbh | Cryogenic fuel fuel delivery system, method of operating a fuel delivery system for cryogenic fuels |
DE102018201742A1 (en) | 2018-02-05 | 2019-08-08 | Robert Bosch Gmbh | Fuel delivery device for cryogenic fuels |
DE102018203769A1 (en) | 2018-03-13 | 2019-09-19 | Robert Bosch Gmbh | Fuel delivery device for cryogenic fuels |
DE102018212665A1 (en) * | 2018-07-30 | 2020-01-30 | Robert Bosch Gmbh | Piston pump and fuel delivery device for cryogenic fuels |
DE102019200428A1 (en) | 2019-01-16 | 2020-07-16 | Robert Bosch Gmbh | Method for operating a fuel delivery device for cryogenic fuels, control device and fuel delivery device for cryogenic fuels |
US20230383742A1 (en) * | 2020-10-19 | 2023-11-30 | F2M | Pump comprising cooling means |
FR3115334B1 (en) * | 2020-10-19 | 2022-10-07 | F2M | Pump for cryogenic fluid |
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-
2011
- 2011-06-29 EP EP11352008A patent/EP2541062A1/en not_active Withdrawn
-
2012
- 2012-06-22 WO PCT/CA2012/050416 patent/WO2013000077A1/en active Application Filing
-
2013
- 2013-12-28 US US14/142,830 patent/US20140109600A1/en not_active Abandoned
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US11073218B2 (en) | 2014-07-23 | 2021-07-27 | Bs&B Innovations Limited | In-line pressure relief valve and rupture disk |
US20160377068A1 (en) * | 2015-06-29 | 2016-12-29 | Caterpillar Inc. | Hydraulic Drive Multi-Element Cryogenic Pump |
US10060421B2 (en) * | 2015-06-29 | 2018-08-28 | Caterpillar Inc. | Hydraulic drive multi-element cryogenic pump |
WO2017023643A1 (en) * | 2015-08-06 | 2017-02-09 | Caterpillar Inc. | Cryogenic pump for liquefied natural gas |
US20170037836A1 (en) * | 2015-08-06 | 2017-02-09 | Caterpillar Inc. | Cryogenic Pump for Liquefied Natural Gas |
US10024311B2 (en) * | 2015-08-06 | 2018-07-17 | Caterpillar Inc. | Cryogenic pump for liquefied natural gas |
US20190145392A1 (en) * | 2017-11-13 | 2019-05-16 | Caterpillar Inc. | Cryogenic pump |
US10774820B2 (en) * | 2017-11-13 | 2020-09-15 | Caterpillar Inc. | Cryogenic pump |
Also Published As
Publication number | Publication date |
---|---|
EP2541062A1 (en) | 2013-01-02 |
WO2013000077A1 (en) | 2013-01-03 |
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Owner name: WESTPORT POWER INC., CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEFEVRE, ALEXIS;PAPIRER, PIERRE;REEL/FRAME:032854/0993 Effective date: 20140303 |
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