GB2556414A - Fuel cut-off valve - Google Patents
Fuel cut-off valve Download PDFInfo
- Publication number
- GB2556414A GB2556414A GB1715072.3A GB201715072A GB2556414A GB 2556414 A GB2556414 A GB 2556414A GB 201715072 A GB201715072 A GB 201715072A GB 2556414 A GB2556414 A GB 2556414A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- fluid path
- piston
- inlet
- path section
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/14—Details thereof
- F23K5/147—Valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
A fuel cut-off valve 51 having a valve housing 52 with a fluid inlet 53 and with a fluid outlet 54, wherein, in the valve housing 52, a fluid path 55 is formed between the inlet and the outlet, wherein a piston 56 is arranged in the fluid path, which piston divides the fluid path into an inlet-side fluid path section 57 and an outlet-side fluid path section 58, wherein the piston is biased against a sealing seat 60 by a force store 59, such that the fluidic connection between the inlet and the outlet is shut off, and wherein, in the event of a pressurization of the inlet-side and of the outlet-side, the piston lifts off from the sealing seat and opens up the fluidic connection between the inlet-side and the outlet-side, wherein, between the inlet-side fluid path section and the outlet-side fluid path section, there is provided a bypass duct 63 which can be closed off or opened up by an activatable valve 64. The piston and force-store may be configured to not lift off the seat when only the inlet-side is pressurized. The activatable valve in the bypass may be a solenoid valve. The valve may be used in a motor vehicle.
Description
(54) Title of the Invention: Fuel cut-off valve Abstract Title: Fuel cut-off valve (57) A fuel cut-off valve 51 having a valve housing 52 with a fluid inlet 53 and with a fluid outlet 54, wherein, in the valve housing 52, a fluid path 55 is formed between the inlet and the outlet, wherein a piston 56 is arranged in the fluid path, which piston divides the fluid path into an inlet-side fluid path section 57 and an outlet-side fluid path section 58, wherein the piston is biased against a sealing seat 60 by a force store 59, such that the fluidic connection between the inlet and the outlet is shut off, and wherein, in the event of a pressurization of the inlet-side and of the outlet-side, the piston lifts off from the sealing seat and opens up the fluidic connection between the inlet-side and the outlet-side, wherein, between the inlet-side fluid path section and the outlet-side fluid path section, there is provided a bypass duct 63 which can be closed off or opened up by an activatable valve 64. The piston and forcestore may be configured to not lift off the seat when only the inlet-side is pressurized. The activatable valve in the bypass may be a solenoid valve. The valve may be used in a motor vehicle.
1/2
P Outlet
Fig. 1
2/2
Fig.
Fuel cut-off valve
The invention relates to a fuel cut-off valve, in particular for a fuel line of a motor vehicle.
In the case of motor vehicles with an internal combustion engine, the internal combustion engine is fed with a fuel from a fuel tank. For this purpose, a fuel pump is provided which pumps the fuel from the fuel tank to the internal combustion engine via a fuel line. Here, according to the prior art, the fuel pump is integrated in the fuel tank. The fuel pump, during the operation thereof, delivers fuel from the tank into the fuel line, which fuel is supplied from there to the internal combustion engine.
If a leak were to occur in the fuel line, which virtually does not occur during normal operation of a motor vehicle used in the customary manner, it would be possible for fuel to escape.
By contrast, in the case of motorsport activities, operating situations in which a fuel line could also be damaged, with the result that fuel could escape if a fuel pump is running, are not entirely implausible. Such operating situations may arise for example in collision situations or other accident situations. It would be possible for the fuel that escapes as a result to ignite on hot parts, which could lead to undesired hazardous situations, which must be avoided.
For this purpose, in the prior art, mechanical fuel cut-off valves have become known which shut off the fuel line downstream of the fuel cut-off valve such that, in the event of a pressure drop in the fuel line, the valve is rapidly closed, and an uncontrolled escape of fuel in the event of a breakage of a fuel line is avoided.
Said mechanical valves according to the prior art however have the disadvantage that, in the case of motorsport activities, it is always also possible for one-off operating situations to arise which, without a defect in the fuel line, can at least briefly result in a reduced fuel pressure in the fuel line such that the fuel cut-off valve shuts off the fuel supply, with the result that an adequate supply of fuel to the internal combustion engine is no longer ensured even though no operating situation involving a defect of the fuel line is present.
The present invention seeks to provide a fuel cut-off valve which reduces or even eliminates the disadvantages of the prior art.
This can be achieved by means of the features of claim 1.
An exemplary embodiment of the invention relates to a fuel cut-off valve having a valve housing with a fluid inlet and with a fluid outlet, wherein, in the valve housing, a fluid path is formed between the fluid inlet and the fluid outlet, wherein a piston is arranged in the fluid path, which piston divides the fluid path into an inlet-side fluid path section and an outlet-side fluid path section, wherein the piston is spring-loaded against a sealing seat by a force store, such that the fluidic connection between the inlet-side fluid path section and the outlet-side fluid path section is shut off, and wherein, in the event of a pressurization of the inletside fluid path section and of the outlet-side fluid path section, the piston lifts off from the sealing seat and opens up the fluidic connection between the inlet-side fluid path section and the outlet-side fluid path section, wherein, between the inlet-side fluid path section and the outlet-side fluid path section, there is provided a bypass duct which can be closed off or opened up by an activatable valve. In this way, in the event of an undesired drop in fluid pressure in the outlet-side fluid path section during operation, and the associated closure of the fuel cut-off valve, it is possible for the operating pressure in the outlet-side fluid path section to be rapidly adjusted to an adequate setpoint pressure again by activating the activatable valve in the bypass duct, such that the fuel cut-off valve opens again, in particular fully. It is thus possible for the driver of a motor vehicle to open the fuel cut-off valve again, for example by manually operating an operating element, if a cutoff of the fuel cut-off valve has occurred despite the absence of a leak of the fuel line.
Here, it is advantageous if the preload of the force store against the piston is configured such that, in the event of apressurization of the inlet-side fluid path section and of the outlet-side fluid path section by means of fuel at a setpoint pressure, the piston lifts off from the sealing seat. As a result, the fuel cut-off valve is only open, or only opens, when a predefined setpoint pressure prevails on both sides of the piston. Here, the setpoint pressure may be selected so as to be lower than a minimum or normal operating pressure .
Here, it is particularly advantageous if the preload of the force store against the piston is configured such that, in the event of a pressurization of only the inlet-side fluid path section by means of fuel at a predefined setpoint pressure, the piston does not lift off from the sealing seat. It is thus particularly advantageous if the piston is not to lift off from the sealing seat even if a maximum operating pressure prevails only in the inlet-side fluid path section.
It is thereby achieved that, in the event of a leak in the fuel line that is connected to the outlet-side fluid path section, the fuel cut-off valve closes. At the same time, in the absence of a leak in the fuel line, it is possible, in the event of a brief and undesired closure of the fuel cut-off valve owing to an inadvertent pressure drop in the outlet-side fluid path section, for the fuel cut-off valve to be opened again by opening the bypass. In the event of an actual leak in the fuel line, the opening of the bypass would not cause the fuel cut-off valve to open, because said leak would have the effect that a pressure build-up at the outlet side would no longer be possible.
It is particularly advantageous if the activatable valve is in the form of an actuator-operated valve, in particular a solenoid valve. In this way, through electrical or electronic activation, the valve can be opened and the bypass between the inlet-side fluid path section and the outlet-side fluid path section can thereby be opened when required, for example upon start-up of the fuel pump or in specific operating situations, as mentioned above.
Here, it is also advantageous if the activatable valve has a displaceable second piston which is displaceable in particular counter to the restoring force of a second force store. In this way, the activatable valve can be closed when not fed with current, such that, in the state without a current feed, the bypass is closed. Alternatively, the activatable valve may also be open when not fed with current.
It is also advantageous if the displaceable second piston is displaceable, in particular counter to the restoring force of a second force store, by means of an actuator, in particular by means of a solenoid actuator. In this way, a rapid controlled actuation of the activatable valve of the bypass is possible .
It is also advantageous if the inlet-side fluid path section or the outlet-side fluid path section has a cylindrical fluid chamber which is delimited by the piston. In this way, the force on the piston for the opening movement is determined by the cross-sectional area of the cylindrical fluid chamber and by the pressure of the fluid in the cylindrical fluid chamber. Through the configuration of the cross section, it is possible to achieve that the piston is not displaced if a fluid pressure prevails only in the inlet-side fluid path section.
It is also expedient if the outlet-side fluid path section or the inlet-side fluid path section has a cylindrical-ringshaped fluid chamber which is delimited by the piston. In this way, an installation-space-saving design is realized because the cylindrical-ring-shaped fluid chamber can be arranged radially outside the cylindrical ring-shaped chamber. It is also possible for the force on the piston to be determined by means of the cross section of the cylindrical-ring-shaped fluid chamber, such that the piston lifts off from the sealing seat if the inlet-side and the outlet-side fluid chamber sections are at a fluid pressure greater than a predefined setpoint pressure.
It is also advantageous if, in the housing, there is furthermore provided a drain fluid path which is fluidically connected to the inlet-side fluid path and which is closed off by a closure element. In this way, the tank can for example be evacuated through the drain fluid path, bypassing the fluid path that is closed off by the piston.
It is also expedient if the housing is of multi-part form, such that at least one or more out of fluid inlet, fluid outlet, activatable valve and/or closure element is or are insertable into a base housing body.
In this way, the fuel cut-off valve can be of modular construction, which makes it possible for the fuel cut-off valve to be easily produced and, if necessary, also easily repaired.
Below, an embodiment of the invention will be discussed in detail on the basis of an exemplary embodiment and with reference to the drawing. In the drawing:
Fig. 1 shows a sectional view of a fuel cut-off valve according to the prior art, and
Fig. 2 shows a sectional view of a fuel cut-off valve according to an embodiment of the invention.
Figure 1 shows a fuel cut-off valve 1 according to the prior art. The fuel cut-off valve 1 is purely mechanically controlled, such that, in the event of a malfunction or in the event of an inadvertent cut-off, no external influence can be exerted, in particular during ongoing operation of a motor vehicle, because the fuel cut-off valve is normally installed directly on the fuel tank in the motor vehicle.
The fuel cut-off valve 1 has a valve housing 2 with a fluid inlet 3 and with a fluid outlet 4. In the valve housing 2, a fluid path 5 is formed between the fluid inlet 3 and the fluid outlet 4. Here, the fluid inlet 3 is typically connected to an intake line or to a fuel pump or the like in order to draw fuel out of a fuel tank. Also, the fluid outlet 4 is typically connected to a downstream fuel line, which in turn typically leads to an internal combustion engine.
In the fluid path 5 there is arranged a piston 6 which divides the fluid path 5 into an inlet-side fluid path section 7 and an outlet-side fluid path section 8. Here, the piston 6 is spring-loaded against a sealing seat 10 by a force store 9, such that the fluidic connection between the inlet-side fluid path section 7 and the outlet-side fluid path section 8 is shut off when the piston 6 bears against the sealing seat 10.
In the event of a pressurization of the inlet-side fluid path section 7 and of the outlet-side fluid path section 8, the piston 6 lifts off from the sealing seat 10 and the fluidic connection between the inlet-side fluid path section 7 and the outlet-side fluid path section 8 is opened up.
In order that a pressure can build up in the outlet-side fluid path section 8 upon the start-up of the fuel pump, a fine bypass bore 11 is provided between the inlet-side fluid path section 7 and the outlet-side fluid path section 8, through which bypass bore a relatively small fluid flow can permanently flow such that a pressure can also build up in the outlet-side fluid path section 8, in order to cause the piston 6 to lift off from the sealing seat 10, when a pressure has built up on the inlet side.
Figure 2 is a sectional illustration of a fuel cut-off valve 51 according to the invention.
The fuel cut-off valve 51 is designed to be partially mechanically and partially electrically or electronically controlled, such that, in the event of a malfunction or in the event of an inadvertent cut-off, external influence can be briefly exerted.
The fuel cut-off valve 51 has a valve housing 52 with a fluid inlet 53 and with a fluid outlet 54. In the valve housing 52, a fluid path 55 is formed between the fluid inlet 53 and the fluid outlet 54. Here, the fluid inlet 53 is designed to be connectable to an intake line or to a fuel pump or the like in order to draw fuel out of a fuel tank. Also, the fluid outlet 54 is connectable to a downstream fuel line, which preferably leads to an internal combustion engine.
In the fluid path 55 there is arranged a piston 56 which divides the fluid path 55 into an inlet-side fluid path section 57 and an outlet-side fluid path section 58.
Here, the piston 56 is spring-loaded against a sealing seat 60 by a force store 59, such that the fluidic connection between the inlet-side fluid path section 57 and the outlet-side fluid path section 58 is shut off when the piston 56 bears against the sealing seat 60.
For this purpose, the force store 59 is supported at one side on the piston 56, and at the other side, the force store 59 is supported on a surface of the valve housing 52. Here, the force store 59 is arranged in preloaded fashion.
The piston 56 is acted on by forces exerted by the pressures prevailing in the fluid path sections 57, 58, because the fluid path sections 57, 58 each have an effective surface on the piston 56.
In the event of a pressurization of the inlet-side fluid path section 57 and of the outlet-side fluid path section 58, the piston 56 lifts off from the sealing seat 60 and the fluidic connection between the inlet-side fluid path section 57 and the outlet-side fluid path section 58 is opened up.
The preload of the force store 59 against the piston 56 is in this case configured such that, in the event of the inlet-side fluid path section 57 and the outlet-side fluid path section 58 being pressurized by means of fuel at operating pressure, the piston 56 lifts off from the sealing seat 60 and connects the fluid path between the inlet-side fluid path section 57 and the outlet-side fluid path section 58.
The preload of the force store 59 against the piston 56 is in this case also configured such that, in the event of only the inlet-side fluid path section 57 being pressurized by means of fuel at operating pressure, the piston 56 does not lift off from the sealing seat 60.
In figure 2, the inlet-side fluid path section 57 has a cylindrical fluid chamber 61 which is delimited in an axial direction by the piston 56. Here, the outlet-side fluid path section 58 has a cylindrical-ring-shaped fluid chamber 62 which is likewise delimited by the piston 56. Here, the piston 56 delimits the cylindrical-ring-shaped fluid chamber 62 both axially and radially. The influence of the fluid chambers 61, 62, or the force acting on the piston 56 in the presence of a given pressure load, is configured by means of the cross sections of said fluid chambers.
As an alternative to the exemplary embodiment of figure 2, the inlet-side fluid path section 57 may also have a cylindricalring-shaped fluid chamber which is delimited by the piston 56. Here, the outlet-side fluid path section 58 may have a cylindrical fluid chamber which is likewise delimited by the piston 56.
In order that a pressure can build up in the outlet-side fluid path section 58 in particular upon start-up of the fuel pump, a bypass duct 63 is provided between the inlet-side fluid path section 57 and the outlet-side fluid path section 58, which bypass duct can be closed off or opened up by an activatable valve 64.
If the bypass duct 63 is opened up, it is possible, in the event of a pressure build-up on the inlet side, for a pressure to also build up in the outlet-side fluid path section 58, so as to cause the piston 56 to lift off from the sealing seat 60. In this way, a pressure equalization occurs between the pressure in the inlet-side fluid path section 57 and that in the outlet-side fluid path section 58, and the piston 56 lifts off from the sealing seat 60.
If the bypass duct 63 is closed, no pressure can build up in the outlet-side fluid path section 58 in the event of a pressure build-up on the inlet side, and the piston 56 is not caused to lift off from the sealing seat 60. It is thus also the case that no pressure equalization occurs between the pressure in the inlet-side fluid path section 57 and that in the outlet-side fluid path section 58. The piston 56 is forced against the sealing seat 60 by the force store 59.
The activatable valve 64 is in the form of an actuatoroperated valve, in particular solenoid valve or motor-operable valve .
The activatable valve 64 has a displaceable second piston 65 which is displaceable in particular counter to the restoring force of a second force store 66. Here, the displaceable second piston 65 is displaced, in particular counter to the restoring force of the second force store 66, by an actuator, in particular by a solenoid actuator 67 such as a magnet coil. It is thus possible for the second piston 65 to be axially displaced in order to close or open up the bypass duct 63. For this purpose, the valve 64 also has a connector unit 72 by means of which the valve 64 can be operated or activated. The bypass duct 63 has a relatively large cross section, such that the charging of the outlet-side fluid path can occur quickly. The cross section of the bypass duct 63 is preferably of approximately the same size as the cross section of the inletside fluid path 57. This means that the cross section of the bypass duct 63 may range from approximately half of the cross section of the inlet-side fluid path 57 to approximately two times the cross section of the inlet-side fluid path 57.
In the valve housing 52 there is furthermore provided a drain fluid path 73 which is fluidically connected to the inlet-side fluid path 57. Here, the drain fluid path 73 is closed off to io the outside by a closure element 70. Here, said closure element 70 is preferably a self-closing attachment coupling for the attachment of a drain hose.
It can also be seen in figure 2 that the valve housing 52 is of multi-part form, such that at least one out of fluid inlet 53, fluid outlet 54, activatable valve 64 and/or closure element 70 is or are insertable into a base housing body 71.
List of reference designations
| 1 | Fuel cut-off valve | |
| 2 | Valve housing | |
| 5 | 3 | Fluid inlet |
| 4 | Fluid outlet | |
| 5 | Fluid path | |
| 6 | Piston | |
| 7 | Fluid path section | |
| 10 | 8 | Fluid path section |
| 9 | Force store | |
| 10 | Sealing seat | |
| 11 | Bypass bore | |
| 51 | Fuel cut-off valve | |
| 15 | 52 | Valve housing |
| 53 | Fluid inlet | |
| 54 | Fluid outlet | |
| 55 | Fluid path | |
| 56 | Piston | |
| 20 | 57 | Fluid path section |
| 58 | Fluid path section | |
| 59 | Force store | |
| 60 | Sealing seat | |
| 61 | Fluid chamber | |
| 25 | 62 | Fluid chamber |
| 63 | Bypass duct | |
| 64 | Valve | |
| 65 | Second piston | |
| 66 | Second force store | |
| 30 | 67 | Actuator, solenoid |
| 70 | Closure element | |
| 71 | Base housing body | |
| 72 | Connector unit | |
| 73 | Drain fluid path |
Claims (14)
1. A fuel cut-off valve having a valve housing with a fluid inlet and with a fluid outlet, wherein, in the valve housing, a fluid path is formed between the fluid inlet and the fluid outlet wherein a piston is arranged in the fluid path, which piston divides the fluid path into an inlet-side fluid path section and an outlet-side fluid path section, wherein the piston is spring-loaded against a sealing seat by a force store, such that the fluidic connection between the inlet-side fluid path section and the outlet-side fluid path section is shut off, and wherein, in the event of a pressurization of the inletside fluid path section and of the outlet-side fluid path section, the piston lifts off from the sealing seat and opens up the fluidic connection between the inlet-side fluid path section and the outlet-side fluid path section, and wherein, between the inlet-side fluid path section and the outlet-side fluid path section, there is provided a bypass duct which can be closed off or opened up by an activatable valve.
2. The fuel cut-off valve as claimed in claim 1, wherein the preload of the force store against the piston is configured such that, in the event of a pressurization of the inlet-side fluid path section and of the outlet-side fluid path section by means of fuel at operating pressure or at a predefinable pressure, the piston lifts off from the sealing seat.
3. The fuel cut-off valve as claimed in claim 1 or 2, wherein the preload of the force store against the piston is configured such that, in the event of a pressurization of only the inlet-side fluid path section by means of fuel at operating pressure or at the predefinable pressure, the piston does not lift off from the sealing seat.
4. The fuel cut-off valve as claimed in one of the preceding claims, wherein the activatable valve is in the form of an actuator-operated valve.
5. The fuel cut-off valve as claimed in claim 4, wherein the activatable valve is a solenoid valve.
6. The fuel cut-off valve as claimed in one of the preceding claims, wherein the activatable valve has a displaceable second piston which is displaceable.
7. The fuel cut-off valve as claimed in claim 6, wherein the second piston is displaceable counter to the restoring force of a second force store.
8. The fuel cut-off valve as claimed in one of the preceding claims, wherein the displaceable second piston is displaceable by means of an actuator.
9. The fuel cut-off valve as claimed in claim 8, wherein the second piston is displaceable by means of a solenoid actuator .
10. The fuel cut-off valve as claimed in one of the preceding claims, wherein the inlet-side fluid path section or the outlet-side fluid path section has a cylindrical fluid chamber which is delimited by the piston.
11. The fuel cut-off valve as claimed in one of the preceding claims, wherein the outlet-side fluid path section or the inlet-side fluid path section has a cylindrical-ring-shaped fluid chamber which is delimited by the piston.
12. The fuel cut-off valve as claimed in one of the
5 preceding claims, wherein, in the valve housing, there is furthermore provided a drain fluid path which is fluidically connected to the inlet-side fluid path and which is closed off by a closure element.
io
13. The fuel cut-off valve as claimed in one of the preceding claims, wherein the valve housing is of multipart form, such that at least one out of fluid inlet, fluid outlet, activatable valve and/or closure element is or are insertable into a base housing body.
14. A motor vehicle comprising a fuel cut-off valve as claimed in one of the preceding claims.
Intellectual
Property
Office
Application No: GB1715072.3 Examiner: Adrian Mooney
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016117642.7A DE102016117642A1 (en) | 2016-09-19 | 2016-09-19 | fuel cut |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201715072D0 GB201715072D0 (en) | 2017-11-01 |
| GB2556414A true GB2556414A (en) | 2018-05-30 |
| GB2556414B GB2556414B (en) | 2019-11-13 |
Family
ID=60159304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1715072.3A Active GB2556414B (en) | 2016-09-19 | 2017-09-19 | Fuel cut-off valve |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE102016117642A1 (en) |
| GB (1) | GB2556414B (en) |
| IT (1) | IT201700093462A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2045132A1 (en) * | 1989-01-10 | 1990-07-11 | Milic Novakovic | Universal control valve |
| US5373864A (en) * | 1992-07-30 | 1994-12-20 | Taylor; Julian S. | Downstream low fluid pressure emergency shutoff valve |
| US5799639A (en) * | 1996-05-22 | 1998-09-01 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative fuel-processing system for internal combustion engines |
| US20050034710A1 (en) * | 2002-06-21 | 2005-02-17 | Ti Group Automotive Systems, L.L.C. | No-return loop fuel system |
| US20070209703A1 (en) * | 2006-03-10 | 2007-09-13 | Fisher Controls International Llc | Pressure Reducing Regulator with Adjustable Feature |
| CN106870784A (en) * | 2015-12-11 | 2017-06-20 | 李福来 | Guide's balanced high pressure pneumatic proportional pressure-reducing valve |
-
2016
- 2016-09-19 DE DE102016117642.7A patent/DE102016117642A1/en active Pending
-
2017
- 2017-08-11 IT IT102017000093462A patent/IT201700093462A1/en unknown
- 2017-09-19 GB GB1715072.3A patent/GB2556414B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2045132A1 (en) * | 1989-01-10 | 1990-07-11 | Milic Novakovic | Universal control valve |
| US5373864A (en) * | 1992-07-30 | 1994-12-20 | Taylor; Julian S. | Downstream low fluid pressure emergency shutoff valve |
| US5799639A (en) * | 1996-05-22 | 1998-09-01 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative fuel-processing system for internal combustion engines |
| US20050034710A1 (en) * | 2002-06-21 | 2005-02-17 | Ti Group Automotive Systems, L.L.C. | No-return loop fuel system |
| US20070209703A1 (en) * | 2006-03-10 | 2007-09-13 | Fisher Controls International Llc | Pressure Reducing Regulator with Adjustable Feature |
| CN106870784A (en) * | 2015-12-11 | 2017-06-20 | 李福来 | Guide's balanced high pressure pneumatic proportional pressure-reducing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201715072D0 (en) | 2017-11-01 |
| DE102016117642A1 (en) | 2018-03-22 |
| GB2556414B (en) | 2019-11-13 |
| IT201700093462A1 (en) | 2019-02-11 |
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