# US 10,865,713 B2 · Systems and methods for cooling electronic engine control devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,713 B2 - Document ID: US10865713B2 - Status: Granted - Kind: B2 - Application number: 16/041,507 - Filed: 2018-07-20 - Published: 2020-01-23 - Granted: 2020-12-15 - Earliest claimed: 2018-07-20 - Assignees: Hamilton Sundstrand Corporation - Applicants: Hamilton Sundstrand Corporation - Inventors: Gerald P. Dyer - Web page: https://patentgrep.com/patent/US10865713B2 ## CPC - F02C 7/16: characterised by cooling medium - F02C 7/224: Heating fuel before feeding to the burner - F02C 7/14: of fluids in the plant {, e.g. lubricant or fuel (F02C7/185 takes precedence)} - F02C 7/222: {Fuel flow conduits, e.g. manifolds} - F02C 7/236: Fuel delivery systems comprising two or more pumps - F04D 29/5813: {Cooling the control unit} - F04D 29/5826: {Cooling at least part of the working fluid in a heat exchanger} - F05B 2220/302: in gas turbines - F05B 2260/232: characterised by the cooling medium - F05D 2260/205: Cooling fluid recirculation, i.e. after cooling one or more components is the cooling fluid recovered and used elsewhere for other purposes - F05D 2260/213: by the provision of a heat exchanger within the cooling circuit - Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A pump for a fuel system include a housing, a pumping element, and a takeoff. The housing has an inlet, an outlet, and channel connecting the inlet to the outlet. The pumping element is supported within the housing and bounds the channel. The takeoff is connected to the housing and is in fluid communication with the channel at a location downstream of the inlet, and upstream of the outlet, to divert partially pressurized fuel for cooling an electronic device. Fuel systems and methods of cooling electronic devices are also described. ## Claims ### Claim 1 A pump, comprising: a housing with an inlet, an outlet, and channel connecting the inlet to the outlet; a pumping element comprising an impeller supported within the housing and bounding the channel; and a takeoff connected to the housing, wherein the takeoff is in fluid communication with the channel at a location downstream of the inlet and upstream of the outlet to divert partially pressurized fuel for cooling an electronic device, wherein the takeoff is located at a position in the housing axially between a leading edge and a trailing edge of the impeller. ### Claim 2 (depends on 1) The pump as recited in claim 1, further comprising a source conduit connected to the pump inlet to provide fuel to the pump. ### Claim 3 (depends on 1) The pump as recited in claim 1, further comprising a takeoff conduit connected to the pump takeoff to flow diverted fuel to a heat exchanger. ### Claim 4 (depends on 1) The pump as recited in claim 1, further comprising a supply conduit connected to the pump outlet to supply pressurized fuel to a gas turbine engine. ### Claim 5 (depends on 1) The pump as recited in claim 1, further comprising a return conduit connected upstream of the pump inlet to return diverted fuel to the pump. ### Claim 6 (depends on 1) The pump as recited in claim 1, wherein the pump is a centrifugal boost pump, the takeoff arranged radially outward of the impeller. ### Claim 7 (depends on 1) A fuel system, comprising: a pump as recited in claim 1; a source conduit connected to the pump inlet to provide fuel to the pump; a takeoff conduit connected to the pump takeoff to flow diverted fuel to a heat exchanger; a supply conduit connected to the pump outlet to supply pressurized fuel to a gas turbine engine; and a return conduit connected upstream of the pump inlet to return diverted fuel to the pump. ### Claim 8 (depends on 7) The fuel system as recited in claim 7, further comprising the heat exchanger connecting the takeoff conduit to the return conduit. ### Claim 9 (depends on 8) The fuel system as recited in claim 8, wherein the electronic device is connected to the heat exchanger and in thermal communication with fuel flowing through the takeoff conduit and the return conduit. ### Claim 10 (depends on 8) The fuel system as recited in claim 8, wherein the electronic device includes an electronic engine controller connected to the heat exchanger and in thermal communication with fuel flowing through the takeoff conduit and the return conduit. ### Claim 11 (depends on 7) The fuel system as recited in claim 7, further comprising the heat exchanger being connected to the fuel pump by the supply conduit. ### Claim 12 (depends on 7) The fuel system as recited in claim 7, further comprising a fuel control module connected to the fuel pump by the supply conduit. ### Claim 13 (depends on 7) The fuel system as recited in claim 7, wherein the pump is a first stage pump, and further a second stage pump connected to the first stage pump by the supply conduit. ### Claim 14 (depends on 13) The fuel system as recited in claim 13, further comprising the heat exchanger being connected to the first stage pump by the supply conduit and arranged upstream of the second stage pump. ### Claim 15 (depends on 7) The fuel system as recited in claim 7, further comprising a fuel source connected to the pump by the source conduit. ### Claim 16 A pump, comprising: a housing with an inlet, an outlet, and channel connecting the inlet to the outlet; a pumping element comprising a single impeller supported within the housing and bounding the channel; and a takeoff connected to the housing, wherein the takeoff is in fluid communication with the channel at a location downstream of the inlet and upstream of the outlet to divert partially pressurized fuel for cooling an electronic device, wherein the pump is a regenerative boost pump with the pumping element being a rotary pumping element, the takeoff arranged radially outward of the single impeller of the rotary pumping element, between an inlet end extent of the single impeller and an outlet end extent of the single impeller. ### Claim 17 A method of cooling, comprising: at a fuel pump for a fuel system including a housing with a channel connecting an inlet to an outlet, a pumping element supported within the housing and bounding the channel, and a takeoff connected to the housing, the takeoff is in fluid communication with the channel at a location downstream of the inlet and upstream of the outlet; receiving low pressure fuel at the inlet; partially pressurizing the fuel with the pumping element; diverting a first portion of the partially pressurized fuel to cool an electronic device; further pressurizing a second portion of the partially pressurized fuel; and discharging the further pressurized fuel through the outlet to provide fuel to a gas turbine engine, and returning the diverted fuel to the inlet of the fuel pump at a location downstream of a fuel tank. ### Claim 18 (depends on 17) The method as recited in claim 17, further comprising flowing the diverted fuel through a heat exchanger. ### Claim 19 A pump for a fuel system, comprising: a housing with an inlet, an outlet, and channel connecting the inlet to the outlet; a pumping element comprising an impeller supported within the housing and bounding the channel; and a takeoff connected to the housing, wherein the takeoff is in fluid communication with the channel at a location downstream of the inlet and upstream of the outlet to divert partially pressurized fuel for cooling an electronic device, wherein the takeoff is located on the housing at a position in the housing radially outward of the pumping element between a leading edge and a trailing edge of the impeller.