# US 7,607,419 B2 · Fuel delivery unit

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 7,607,419 B2
- Document ID: US7607419B2
- Status: Granted
- Kind: B2
- Application number: 12/291,638
- Filed: 2008-11-12
- Published: 2009-05-21
- Granted: 2009-10-27
- Earliest claimed: 2007-11-16
- Assignees: Continental Automotive GmbH
- Inventors: Bernd Rumpf
- Web page: https://patentgrep.com/patent/US7607419B2

## CPC

- F02M 37/106: {the pump being installed in a sub-tank}
- F02M 37/44: Filters structurally associated with pumps
- F02M 37/46: Filters structurally associated with pressure regulators
- F02M 37/50: Filters arranged in or on fuel tanks
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

## Abstract

A fuel delivery unit for delivering fuel from a fuel container to an internal combustion engine of a motor vehicle, comprising a plurality of components, with the components being a flange for closing an opening in the fuel container, a splash pot which is connected to the flange by means of supporting elements a fuel pump which is arranged in said splash pot, a fuel filter, a pressure regulator, a filling level sensor and a pump pre-filter, and means for connecting each individual component to a ground potential of the motor vehicle. Components through and around which fuel flows are connected to the ground potential by means of at least two electrically conductive connections.

## Claims

### Claim 1

A fuel delivery unit for delivering fuel from a fuel container to an internal combustion engine of a motor vehicle, comprising a plurality of components including:
a flange for closing an opening in the fuel container;
a splash pot which is connected to the flange by supporting elements;
a fuel pump which is arranged in said splash pot;
a fuel filter filtering fuel output by said fuel pump;
a pressure regulator returning excess fuel to the splash pot;
a filling level sensor determining a quantity of fuel in the fuel container;
a pump pre-filter connected to the fuel pump; and
means for connecting each of said plurality of components to a ground potential of the motor vehicle by at least two distinct electrically conductive connections.

### Claim 2 (depends on 1)

The fuel delivery unit according to in claim 1, wherein at least one of the electrically conductive connections is selected from the group consisting of an electrical line and a metal-to-metal connection.

### Claim 3 (depends on 1)

The fuel delivery unit according to in claim 1, wherein at least one of the electrically conductive connections is a connection between an electrically conductive plastic and metal.

### Claim 4 (depends on 1)

The fuel delivery unit according to in claim 1, wherein at least one of the electrically conductive connections is established between electrically conductive plastics.

### Claim 5 (depends on 1)

The fuel delivery unit according claim 1, wherein a further component is interconnected in at least one of the electrically conductive connections between said components and the ground potential.

### Claim 6 (depends on 3)

The fuel delivery unit according to claim 3, wherein the electrically conductive plastic is a polyoxymethylene, blended with electrically conductive constituents.

### Claim 7 (depends on 3)

The fuel delivery unit according to claim 3, wherein the electrically conductive plastic is a polyamide blended with electrically conductive constituents.

### Claim 8 (depends on 6)

The fuel delivery unit according to claim 6, wherein the electrically conductive constituents are at least one of metal and carbon.

### Claim 9 (depends on 7)

The fuel delivery unit according to claim 7, wherein the electrically conductive constituents are at least one of metal and carbon.

### Claim 10 (depends on 1)

The fuel delivery unit according to claim 1, wherein at least one of said fuel delivery unit components is an electrically conductive plastic.

### Claim 11 (depends on 10)

The fuel delivery unit according to claim 10, wherein the electrically conductive plastic is at least one of polyamide or polyoxymethylene, and the electrically conductive constituents are at least one of metal and carbon.