# US 7,743,750 B2 · Fuel liquid and vapor pressure sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,743,750 B2 - Document ID: US7743750B2 - Status: Granted - Kind: B2 - Application number: 12/273,324 - Filed: 2008-11-18 - Published: 2009-05-21 - Granted: 2010-06-29 - Earliest claimed: 2007-11-19 - Assignees: Robert Bosch GmbH - Inventors: Ronald R. Ritz; Alexander Lux; Martin Mast - Web page: https://patentgrep.com/patent/US7743750B2 ## CPC - F02M 37/0058: {Returnless fuel systems, i.e. the fuel return lines are not entering the fuel tank} - F02M 37/0011: {Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor} - G01L 15/00: Devices or apparatus for measuring two or more fluid pressure values simultaneously - G01L 19/0038: {being part of the housing (other details about the housing G01L19/14)} - G01L 19/0084: {to the outside of the housing (other details about the housing see G01L19/14)} - G01L 19/0092: {Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L9/025, G01L9/045, G01L9/065, G01L9/085, G01L9/105, G01L9/125, G01L19/02, G01L19/04 take precedence; measuring two or more variable G01D21/02; temperature sensors with pressure compensation G01K1/26)} - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) ## Abstract A combined liquid and vapor sensor assembly includes a body and a mounting portion for coupling the body to a fuel pump module flange that defines an interface between an interior and an exterior of a fuel tank. A liquid pressure sensor is housed in a recess in the body for sensing a liquid pressure of a fuel in the fuel tank, and a vapor pressure sensor is housed in the recess in the body for sensing a vapor pressure of a fuel vapor in the fuel tank. An electrical connector is coupled with the body for providing power to the liquid pressure sensor and the vapor pressure sensor. ## Claims ### Claim 1 A combined liquid and vapor sensor assembly comprising: a body; a mounting portion for coupling the body to a fuel pump module flange that defines an interface between an interior and an exterior of a fuel tank; a liquid pressure sensor housed in a recess in the body for sensing a liquid pressure of a fuel in the fuel tank; a vapor pressure sensor housed in the recess in the body for sensing a vapor pressure of a fuel vapor in the fuel tank; and an electrical connector coupled with the body for providing power to the liquid pressure sensor and the vapor pressure sensor. ### Claim 2 (depends on 1) The combined liquid and vapor sensor assembly of claim 1, further comprising a passageway in the mounting portion that provides communication between the fuel and the liquid pressure sensor. ### Claim 3 (depends on 2) The combined liquid and vapor sensor assembly of claim 2, further comprising an inlet port coupled to the mounting portion that includes a bore formed therein to provide fluid communication between the fuel and the passageway. ### Claim 4 (depends on 2) The combined liquid and vapor sensor assembly of claim 2, further comprising a fuel outlet port coupled to the body and including an outlet bore formed therein that communicates with the passageway to enable the fuel to pass through the sensor assembly. ### Claim 5 (depends on 1) The combined liquid and vapor sensor assembly of claim 1, further comprising a passageway in the mounting portion that provides communication between the fuel vapor and the vapor pressure sensor. ### Claim 6 (depends on 1) The combined liquid and vapor sensor assembly of claim 1, further comprising a cover configured to close the recess, and a cap coupled to the cover that allows air to communicate between an interior of the recess and an exterior of the recess, for providing reference air to the liquid pressure sensor and the vapor pressure sensor. ### Claim 7 (depends on 1) The combined liquid and vapor sensor assembly of claim 1, further comprising a plurality of mounting apertures in the body configured to receive respective fasteners for mounting the combined liquid and vapor sensor assembly to the fuel pump module flange. ### Claim 8 (depends on 1) The combined liquid and vapor sensor assembly of claim 1, further comprising a first passageway in the mounting portion that provides communication between the fuel and the liquid pressure sensor, and a second passageway in the mounting portion that provides communication between the fuel vapor and the vapor pressure sensor. ### Claim 9 (depends on 8) The combined liquid and vapor sensor assembly of claim 8, further comprising a fuel outlet port coupled to the body and including an outlet bore formed therein that communicates with the first passageway to enable the fuel to pass through the sensor assembly. ### Claim 10 (depends on 1) The combined liquid and vapor sensor assembly of claim 1, wherein the mounting portion further includes a sealing member operable to seal an interface between the mounting portion and the flange. ### Claim 11 A fuel pump module assembly comprising: a flange that defines an interface between an interior and an exterior of a fuel tank; a combined liquid and vapor sensor assembly secured to the flange and including, a body; a mounting portion for coupling the body to the flange; a liquid pressure sensor housed in a recess in the body for sensing a liquid pressure of a fuel in the fuel tank; a vapor pressure sensor housed in the recess in the body for sensing a vapor pressure of a fuel vapor in the fuel tank; and an electrical connector coupled with the body for providing power to the liquid pressure sensor and the vapor pressure sensor. ### Claim 12 (depends on 11) The fuel pump module assembly of claim 11, further comprising a passageway in the mounting portion that provides communication between the fuel and the liquid pressure sensor. ### Claim 13 (depends on 12) The fuel pump module assembly of claim 12, further comprising an inlet port coupled to the mounting portion that includes a bore formed therein to provide fluid communication between the fuel and the passageway. ### Claim 14 (depends on 12) The fuel pump module assembly of claim 12, further comprising a fuel outlet port coupled to the body and including an outlet bore formed therein that communicates with the passageway to enable the fuel to pass through the sensor assembly. ### Claim 15 (depends on 11) The fuel pump module assembly of claim 11, further comprising a passageway in the mounting portion that provides communication between the fuel vapor and the vapor pressure sensor. ### Claim 16 (depends on 11) The fuel pump module assembly of claim 11, further comprising a cover configured to close the recess, and a cap coupled to the cover that allows air to communicate between an interior of the recess and an exterior of the recess, for providing reference air to the liquid pressure sensor and the vapor pressure sensor. ### Claim 17 (depends on 11) The fuel pump module assembly of claim 11, further comprising a plurality of mounting apertures in the body configured to receive respective fasteners for mounting the combined liquid and vapor sensor assembly to the fuel pump module flange. ### Claim 18 (depends on 11) The fuel pump module assembly of claim 11, further comprising a first passageway in the mounting portion that provides communication between the fuel and the liquid pressure sensor, and a second passageway in the mounting portion that provides communication between the fuel vapor and the vapor pressure sensor. ### Claim 19 (depends on 18) The fuel pump module assembly of claim 18, further comprising a fuel outlet port coupled to the body and including an outlet bore formed therein that communicates with the first passageway to enable the fuel to pass through the sensor assembly. ### Claim 20 (depends on 11) The fuel pump module assembly of claim 11, wherein the mounting portion further includes a sealing member operable to seal an interface between the mounting portion and the flange.