Fuel interface modules and related systems and methods

• US 9,353,712 B2
• Filed: 03/09/2015
• Issued: 05/31/2016
• Est. Priority Date: 05/10/2010
• Status: Active Grant

• Current Assignee: Go Natural CNG LLC
• Original Assignee: Go Natural CNG LLC
• Inventors: Matsukawa, Matthew
• Primary Examiner(s): Schneider, Craig
• Assistant Examiner(s): HICKS, ANGELISA
• Application Number:
  US14/642,336
• Publication Number:
  US 20150240763A1
• Time in Patent Office: 449 Days
• Field of Search: 123/457, 123/527, 180/69.5, 180/314, 137/605, 137/606, 137/602, 137/597, 137/557
• US Class Current: 1/1
• CPC Class Codes: F02D 19/0628 Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
• CPC Class Codes: F02D 19/0647 the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
• CPC Class Codes: F02D 19/066 Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels
• CPC Class Codes: F02D 19/0665 Tanks, e.g. multiple tanks
• CPC Class Codes: F02D 19/0668 Treating or cleaning means; Fuel filters
• CPC Class Codes: F02D 19/0676 Multi-way valves; Switch-over valves
• CPC Class Codes: F02D 19/0681 Shut-off valves; Check valves; Safety valves; Pressure relief valves
• CPC Class Codes: F02M 21/0221 Fuel storage reservoirs, e.g. cryogenic tanks
• CPC Class Codes: F02M 21/0227 Means to treat or clean gaseous fuels or fuel systems, e.g. removal of tar, cracking, reforming or enriching
• CPC Class Codes: F02M 21/0239 Pressure or flow regulators therefor
• CPC Class Codes: F02M 37/0023 Valves in the fuel supply and return system
• CPC Class Codes: Y02T 10/30 Use of alternative fuels, e.g. biofuels
• CPC Class Codes: Y10T 137/7837 Direct response valves [i.e., check valve type]
• CPC Class Codes: Y10T 137/8326 Fluid pressure responsive indicator, recorder or alarm
• CPC Class Codes: Y10T 137/87249 Multiple inlet with multiple outlet
• CPC Class Codes: Y10T 137/87684 Valve in each inlet

Abstract

Fuel interface modules that can be used in automotive vehicle fuel systems can include a body that defines a fuel channel and a plurality of ports through which fluid communication with the fuel channel can be established. Some modules include a check valve, a shutoff valve, and a coalescing filter assembly that are each coupled with a separate port. The fuel modules can be quickly installed and can eliminate many of the installing materials typically associated with automotive vehicle fuel systems.

Claims

1. A fuel interface module comprising:

a single, non-separable body comprising a single, unitary material, wherein the body comprises a fuel inlet port, a fuel storage port, a fuel outlet port, and a fuel channel at an interior of the body that connects each port to the other ports;

a check valve directly coupled with the fuel inlet port, wherein the check valve is configured to permit a gaseous fuel to be introduced into the fuel channel via the fuel inlet port and is configured to prevent the gaseous fuel from exiting the fuel channel via the fuel inlet port; and

a shutoff valve directly coupled with the body, wherein the shutoff valve is configured to transition between an open orientation and a closed orientation, wherein when the shutoff valve is in the open orientation, it is configured to permit a gaseous fuel to flow from the fuel channel through the fuel storage port so as to fill a fuel tank or to permit a gaseous fuel from a fuel tank to flow through the fuel storage port into the fuel channel for subsequent delivery to a pressure regulator, and wherein when the shutoff valve is in the closed orientation, it is configured to prevent a gaseous fuel from flowing through the fuel storage port;

wherein the fuel storage port is configured to be indirectly coupled with a fuel tank such that an entirety of the fuel interface module is spaced from the fuel tank and is at an exterior of the fuel tank when the fuel storage port is in fluid communication with the fuel tank.

2. The fuel interface module of claim 1, wherein the fuel interface module is configured to permit gaseous fuel to flow within the fuel channel, without passing through any fittings, between or among a plurality of fuel controlling or analyzing components including the check valve and the shutoff valve.

3. The fuel interface module of claim 1, wherein at least a portion of the fuel channel is defined by a bore that extends through at least a portion of the body.

4. The fuel interface module of claim 3, wherein the bore extends through opposing sides of the body and a port is positioned at each end of the bore, wherein each port is configured to be coupled with either of a plug and a controlling or analyzing component, and wherein the plug that seals an end of the bore can be moved to an opposite end of the bore such that the fuel interface module is reversible.

5. The fuel interface module of claim 1, further comprising a filter port and a coalescing filter assembly directly coupled with the filter port, wherein the coalescing filter assembly is positioned and configured to filter oil from a gaseous fuel that is received into the fuel channel.

6. The fuel interface module of claim 5, wherein the coalescing filter assembly comprises a bowl coupled directly to the body.

7. The fuel interface module of claim 6, wherein the coalescing filter assembly further comprises a nozzle coupled with the body and a filter element positioned between the nozzle and the bowl.

8. The fuel interface module of claim 1, wherein at least a portion of the check valve is at an interior of the body.

9. The fuel interface module of claim 1, wherein the shutoff valve comprises a handle that is accessible at an exterior of the body so as to permit manipulation of portions of the valve that are positioned at an interior of the body.

10. The fuel interface module of claim 9, wherein the body defines one or more stops that are configured to cooperate with the handle to restrict movement of the shutoff valve between the open orientation and the closed orientation.

11. A fuel interface module for indirect coupling with a fuel tank and for indirect coupling with a pressure regulator, the fuel interface module comprising:

a single, non-separable body comprising a single, unitary material, the body comprising a fuel inlet port, a fuel storage port, a filter port, a fuel outlet port, and a fuel channel that connects each port to the other ports, wherein the fuel channel comprises a longitudinal section between a first end of the body and a second end of the body, wherein the fuel channel comprises branches extending from the longitudinal section;

a check valve directly coupled with the fuel inlet port, wherein the check valve is configured to permit a gaseous fuel to be introduced into the fuel channel via the fuel inlet port and is configured to prevent the gaseous fuel from exiting the fuel channel via the fuel inlet port;

a shutoff valve directly coupled with the body, wherein the shutoff valve is configured to transition between an open orientation and a closed orientation, wherein when the shutoff valve is in the open orientation, it is configured to permit a gaseous fuel to flow from the fuel channel through the fuel storage port so as to fill a fuel tank or to permit a gaseous fuel from a fuel tank to flow through the fuel storage port into the fuel channel for subsequent delivery to a pressure regulator, and wherein when the shutoff valve is in the closed orientation, it is configured to prevent a gaseous fuel from flowing through the fuel storage port; and

a coalescing filter assembly directly coupled with the filter port, wherein the coalescing filter assembly is configured to filter oil from a gaseous fuel that is received into the fuel channel;

wherein the fuel storage port is at the first end of the body and the fuel delivery port is at the second end of the body, wherein the longitudinal section of the fuel channel extends through the body between the fuel storage port and the fuel delivery port; and

wherein the fuel interface module is configured such that gaseous fuel enters the body via the fuel storage port, travels through the body via the fuel channel without leaving the fuel channel other than passing through the coalescing filter assembly, and exits via the fuel delivery port.

12. The fuel interface module of claim 11, wherein the fuel storage port is configured to be indirectly coupled with a fuel tank such that an entirety of the fuel interface module is spaced from the fuel tank and is at an exterior of the fuel tank when the fuel storage port is in fluid communication with the fuel tank.

13. The fuel interface module of claim 11, wherein the fuel interface module is configured to permit gaseous fuel to flow within the fuel channel, without passing through any fittings, between or among a plurality of fuel controlling or analyzing components including the check valve, the shutoff valve, and the coalescing filter assembly.

14. The fuel interface module of claim 11, wherein the filter port and the coalescing filter assembly are spaced from the fuel storage port such that after fuel enters the body via the fuel storage fitting, the fuel passes through the shutoff valve prior to passing through the coalescing filter assembly.

15. The fuel interface module of claim 11, wherein each port is positioned at an end of one of the branches or an end of the longitudinal section.

16. The fuel interface module of claim 11, wherein each branch of the fuel channel extends transversely through at least a portion of the body.

17. The fuel interface module of claim 11, wherein each branch extends through opposing sides of the body and each port is positioned at an end of one of the branches, wherein each port is configured to be coupled with either of a plug and a controlling or analyzing component, and wherein the plug that seals an end of the branch can be moved to an opposite end of the branch such that the fuel interface module is reversible.

18. A fuel interface module for indirect coupling with a fuel tank and for indirect coupling with a pressure regulator, the fuel interface module comprising:

a body that comprises a fuel inlet port, a fuel storage port, a filter port, a fuel outlet port, and a fuel channel that connects each port to the other ports;

a check valve directly coupled with the fuel inlet port, wherein the check valve permits a gaseous fuel to be introduced into the fuel channel via the fuel inlet port and prevents a gaseous fuel from exiting the fuel channel via the fuel inlet port;

a shutoff valve directly coupled with the body, wherein the shutoff valve transitions between an open orientation and a closed orientation, wherein when the shutoff valve is in the open orientation a gaseous fuel is permitted to flow from the fuel channel through the fuel storage port so as to fill a fuel tank or a gaseous fuel is permitted to flow from a fuel tank through the fuel storage port into the fuel channel for subsequent delivery to a pressure regulator, and wherein when the shutoff valve is in the closed orientation a gaseous fuel is prevented from flowing through the fuel storage port;

a coalescing filter assembly directly coupled with the filter port, wherein the coalescing filter assembly filters oil from a gaseous fuel passing through the fuel channel;

a fuel storage fitting directly coupled with the fuel storage port, wherein the fuel storage fitting is configured to be directly coupled with a first portion of a fuel line that is coupled a fuel tank such that an entirety of the fuel interface module is spaced from the fuel tank and is at an exterior of the fuel tank when the fuel storage port is in fluid communication with the fuel tank; and

a fuel delivery fitting directly coupled with the fuel delivery port, wherein the fuel delivery fitting is configured to be directly coupled with a second portion of a fuel line that is coupled with a pressure regulator when the fuel delivery port is in fluid communication with the pressure regulator; and

wherein the fuel interface module permits fluid communication from a fuel tank to a pressure regulator when the fuel storage fitting is coupled with a first portion of a fuel line, when the fuel delivery fitting is coupled with a second portion of a fuel line, and when the shutoff valve is in the open orientation;

wherein, when the fuel interface module is in use to provide fluid communication from a fuel tank to a pressure regulator, the configuration of the fuel interface module permits gaseous fuel to enter the fuel interface module via the fuel storage fitting, then to travel through the body via the fuel channel without leaving the fuel channel other than passing through the coalescing filter assembly, and then to exit the fuel interface module via the fuel delivery fitting; and

wherein, when the fuel interface module is in use to provide fluid communication from a fuel tank to a pressure regulator, the configuration of the fuel interface module permits fuel to enter and exit the fuel interface module without passing through any fittings other than the fuel storage fitting and the fuel delivery fitting, and the configuration of the fuel interface module permits fuel to move through the fuel interface module between fuel storage fitting and the fuel delivery fitting via the fuel channel such that movement of the fuel is obstructed in the fuel channel only by the coalescing filter assembly.

19. The fuel interface module of claim 18, wherein the fuel interface module is configured to permit gaseous fuel to flow within the fuel channel, without passing through any fittings, between or among a plurality of fuel controlling or analyzing components including the check valve, the shutoff valve, and the coalescing filter assembly.

20. The fuel interface module of claim 18, wherein the filter port and the coalescing filter assembly are spaced from the fuel storage port such that after fuel enters the body via the fuel storage fitting, the fuel passes through the shutoff valve prior to passing through the coalescing filter assembly.

21. The fuel interface module of claim 18, wherein the fuel channel comprises a longitudinal section between a first end of the body and a second end of the body, wherein the fuel channel comprises branches extending from the longitudinal section.

22. The fuel interface module of claim 21, wherein each port is positioned at an end of one of the branches or an end of the longitudinal section.

23. The fuel interface module of claim 21, wherein each branch of the fuel channel extends transversely through at least a portion of the body.

24. The fuel interface module of claim 21, wherein each branch extends through opposing sides of the body and each port is positioned at an end of one of the branches, wherein each port is configured to be coupled with either of a plug and a controlling or analyzing component, and wherein the plug that seals an end of the branch can be moved to an opposite end of the branch such that the fuel interface module is reversible.

25. A system comprising:

a fuel tank;

a pressure regulator;

a fuel interface module, wherein the fuel interface module is indirectly coupled to the fuel tank via a first portion of a fuel line, wherein the fuel interface module is indirectly coupled to the pressure regulator via a second portion of a fuel line, wherein the fuel interface module comprises;

a body that comprises a fuel inlet port, a fuel storage port, a fuel outlet port, and a fuel channel that connects each port to the other ports;

a check valve directly coupled with the fuel inlet port, wherein the check valve permits a gaseous fuel to be introduced into the fuel channel via the fuel inlet port and prevents a gaseous fuel from exiting the fuel channel via the fuel inlet port;

a shutoff valve directly coupled with the body, wherein the shutoff valve transitions between an open orientation and a closed orientation, wherein when the shutoff valve is in the open orientation a gaseous fuel is permitted to flow from the fuel channel through the fuel storage port so as to fill the fuel tank or a gaseous fuel is permitted to flow from the fuel tank through the fuel storage port into the fuel channel for subsequent delivery to the pressure regulator, and wherein when the shutoff valve is in the closed orientation a gaseous fuel is prevented from flowing through the fuel storage port;

a coalescing filter assembly directly coupled with the filter port, wherein the coalescing filter assembly filters oil from the gaseous fuel passing through the fuel channel;

a fuel storage fitting directly coupled with the fuel storage port, wherein the fuel storage fitting is directly coupled with the first portion of the fuel line such that the fuel interface module is indirectly coupled with the fuel tank via the first portion of the fuel line; and

a fuel delivery fitting directly coupled with the fuel delivery port, wherein the fuel delivery fitting is directly coupled with the second portion of the fuel line such that the fuel interface module is indirectly coupled with the pressure regulator via the second portion of the fuel line;

wherein the fuel interface module provides fluid communication from the fuel tank to a pressure regulator when the shutoff valve is in the open orientation;

wherein, when the fuel interface module is in use to provide fluid communication from a fuel tank to a pressure regulator, the configuration of the fuel interface module permits fuel to enter the fuel interface module via the fuel storage fitting, then to travel through the fuel interface module via the fuel channel, and then to exit the fuel interface module via the fuel delivery fitting; and

wherein, when the fuel interface module is in use to provide fluid communication from a fuel tank to a pressure regulator, the configuration of the fuel interface module permits fuel to enter and exit the fuel interface module without passing through any fittings other than the fuel storage fitting and the fuel delivery fitting, and the configuration of the fuel interface module permits fuel to move through the fuel interface module between fuel storage fitting and the fuel delivery fitting via the fuel channel such that movement of the fuel is obstructed in the fuel channel only by the coalescing filter assembly.

26. The fuel interface module of claim 25,

wherein, when the fuel interface module is in use to provide fluid communication from the fuel tank to the pressure regulator, the configuration of the fuel interface module permits gaseous fuel to enter the fuel interface module via the fuel storage fitting, then to travel through the body via the fuel channel without leaving the fuel channel other than passing through the coalescing filter assembly, and then to exit the fuel interface module via the fuel delivery fitting.

27. The fuel interface module of claim 25, wherein the fuel interface module is configured to permit gaseous fuel to flow within the fuel channel, without passing through any fittings, between or among a plurality of fuel controlling or analyzing components including the check valve, the shutoff valve, and the coalescing filter assembly.

28. The fuel interface module of claim 25, wherein the filter port and the coalescing filter assembly are spaced from the fuel storage port such that after fuel enters the body via the fuel storage fitting, the fuel passes through the shutoff valve prior to passing through the coalescing filter assembly.

29. The fuel interface module of claim 25, wherein the fuel channel comprises a longitudinal section between a first end of the body and a second end of the body, wherein the fuel channel comprises branches extending from the longitudinal section.

30. The fuel interface module of claim 29, wherein each branch extends through opposing sides of the body and each port is positioned at an end of one of the branches, wherein each port is configured to be coupled with either of a plug and a controlling or analyzing component, and wherein the plug that seals an end of the branch can be moved to an opposite end of the branch such that the fuel interface module is reversible.