Description:Complete Specification:
The following specification describes and ascertains the nature of this invention and the manner in which it is to be performed.

Field of the invention:
[0001] The present invention relates to a modular fuel supply module, and more particularly to a pressure regulator that is secured to a fuel filter adapter via coupling means.

Background of the invention:
[0002] US 2013263827 AA describes an oil pump modification adaptor for retrofitting an automobile engine that converts a no-filtration system or a bypass filtration system to a full-flow filtration system. The adaptor modifies the oil pump by providing a full-flow filtration that removes suspended particulates in the oil, so that the particulates do not damage the engine. The flow path of a lubricating oil is modified such that oil is prevented from directly entering the engine unfiltered from an oil reservoir. The adaptor has an integral oil pressure regulator that maintains design oil pressure during conditions of low and high engine speed while directing oil through a filter before entering the engine galleries and passages. The adaptor easily installs and replaces an end plate on a pump housing on the original pump.

Brief description of the accompanying drawing:
[0003] An embodiment of the disclosure is described with reference to the following accompanying drawing:
[0004] FIG. 1 illustrates a pressure regulator that is secured to an adapter of a fuel filter via coupling means in one embodiment of the invention.

Detailed description of the embodiments:
[0005] FIG. 1 illustrates a pressure regulator 180 that is secured directly to an coupling body 150 of a fuel filter adapter assembly 100 via coupling means. The fuel filter adapter assembly 100 comprises a connecting body 110 and a fuel return flow path 120 in flow connection with the connecting body 110. A fuel feed flow path 130 is in flow connection with fuel pump feed connections. A pressure regulator path 140 is in flow connection with the fuel return flow path 120. The pressure regulator path 140 comprises a coupling body 150.

[0006] FIG. 1 illustrates a pressure regulator 180 that is secured to a coupling body 150 of a fuel filter adapter assembly 100 via coupling means in one embodiment of the invention. The fuel filter adapter assembly 100 comprises a connecting body 110 and a fuel return flow path 120 that is in flow connection with the connecting body 110 and delivers pressurized fuel from a fuel filter to the connecting body 110. Similarly, the fuel filter adapter assembly 100 comprises a fuel feed flow path 130 that is in flow connection with fuel pump feed connections and delivers pressurized fuel from the fuel pump to fuel filter. More specifically, a pressure regulator path 140 is in flow connection with the fuel return flow path 120 and the fuel feed flow path 130 is in connection with fuel pump and both fuel return flow path 120 and the fuel feed flow path 130 is in connection with fuel filter by means of coupling, according to the engine fuel consumption the fuel flow into the fuel filter adapter assembly 100 and pressure regulator 180 will leak off the excess fuel and maintain the engine line pressure.

[0007] In an exemplary embodiment, a pressure regulator 180 is in flow connection with pressure regulator path 140. The pressure regulator 180 is adapted to receive pressurized fuel that flows from fuel filter and into the pressure regulator 180 for controlling flow of fuel from the fuel filter adapter assembly 100 to the fuel reservoir. Therefore, by controlling a spring constant of the pressure regulator 180, the quantity of pressurized fuel that is delivered from the fuel filter adapter assembly 100 to a high pressure fuel pump may be effectively controlled and the quantity of pressurized fuel that is delivered from the fuel filter adapter assembly 100 back to the reservoir may also be controlled. In an exemplary embodiment, the coupling body 150 comprises a bore 185 and a counter bore 187 that is provided within the bore 185 of the coupling body 150. The counter bore 187 that is provided within the bore 185 of the adaptor body 150 is adapted to receive a head portion 190 of the pressure regulator 180 within the counter bore 187. Moreover, the bore 185 that is provided in the coupling body 150 is adapted to receive a body portion 192 of the pressure regulator 180 therein.

[0008] In an exemplary embodiment, the coupling body 150 comprises a metal insert 193 that is positioned within the coupling body 150 and is located at a base portion of the pressure regulator 180. The metal insert 193 that is integrally formed within the housing of the adaptor body 150 provides a required grounding to the pressure regulator 180 by connecting with vehicle grounding. More specifically, the metal insert 193 that is integrally formed within the housing of the adaptor body 150 is secured within the housing of the adaptor body 150. A first end of a wire is connected to the metal insert 193 that is integrally formed within the housing of the adaptor body 150 while the opposite second end of the wire is connected to a negative terminal of a fuel pump. The fuel pump is grounded in order to provide the necessary grounding to the pressure regulator 180. The fuel filter adapter assembly 100 further comprises a cap 194 comprising a hinged portion 196 that is secured to the adaptor body 150. More specifically, the first end of the cap 194 that comprises the hinged portion 196 is secured to the adaptor body 150 while the opposite second end of the cap 194 is secured to a notch 199 that is defined on the adaptor body 150.

[0009] A construction of the modular fuel supply module is described as an example. The fuel pressure regulator path 140 comprises the bore 185 that is defined in the fuel filter adapter 140. The counter bore 187 that is provided within the bore 185 of the adaptor body 150 is adapted to receive a head portion 190 of the pressure regulator 180 within the counter bore 187. Moreover, the bore 185 that is provided in the coupling body 150 is adapted to receive a body portion 192 of the pressure regulator 180 therein. Once the pressure regulator 180 is completely positioned within the bore 185 that is defined in the fuel filter adapter 140, the cap 194 of the fuel filter adapter assembly 100 is rotated about its hinged portion 196 and the free end 198 of the cap 194 is secured within the notch 199 that is defined on the coupling body 150. Therefore, the cap 194 of the fuel filter adapter assembly 100 facilitates securing the pressure regulator 180 within the bore 185 that is provided in the coupling body 150.

[0010] It should be understood that the embodiments explained in the description above are only illustrative and do not limit the scope of this invention. Many such embodiments and other modifications and changes in the embodiment explained in the description are envisaged. The scope of the invention is only limited by the scope of the claims.

, Claims:We claim:

1. fuel filter adapter assembly (100), fuel filter adapter assembly (100) comprising:
a connecting body (110);
a fuel return flow path (120) in flow connection with said connecting body (110);
a fuel feed flow path (130) in flow connection with said filter body (110);
a filter adapter (140) in flow connection with said fuel return flow path (120) said filter adapter (140) comprising:
a coupling body (150);
a pressure regulator (180), the pressure regulator (180) adapted to receive pressurized fuel that flows from fuel filter based on engine consumption.

2. The fuel filter adapter assembly (100) in accordance with Claim 1, wherein said adapter body (150) comprises a bore (185) and a counter bore (187) that is provided within the bore (185) of said adapter body (150), the counter bore (187) that is provided within the bore (185) of said adapter body (150) adapted to receive a head portion (190) of said pressure regulator (180), the bore (185) that is provided in said adapter body (150) adapted to receive a body portion (192) of said pressure regulator (180) therein.

3. The fuel filter adapter assembly (100) in accordance with Claim 1, wherein said adapter body (150) comprises a metal insert (193) that is positioned within said adapter body (150) and located at a base portion of the pressure regulator (180), the metal insert (193) is integrally formed within a housing of the adapter body (150) and provides grounding to the pressure regulator (180).

4. The fuel filter adapter assembly (100) in accordance with Claim 1, further comprising a cap (194) comprising a hinged portion (196) secured to the adaptor body (150) such that the cap (194) is adapted to rotate about the hinged portion (196), and wherein a free end (198) of the cap (194) is secured to a notch (199) that is defined on said adaptor body (150).