Systems and methods for cooling electronic engine control devices
AssigneeHamilton Sundstrand Corporation
InventorGerald P. Dyer
Life of this patent
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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.
Claims19
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.
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.
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.
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.
Dependencies are inferred from the claim text.