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US 5,174,266 AGranted
Fuel temperature control device with thermoelectric modules
OwnerAllen J. Evdokimoinventor
Life of this patent
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Abstract
A fuel temperature control system maintains fuel at a programmable temperature by adding heat to or drawing heat from the fuel as it passes through a heat exchanger. A secondary heat exchanger is used in conjunction with Peltier-effect thermoelectric modules to perform the addition of extraction of heat. A control unit receives fuel temperature signals and generates module electrical control signals to control the amount and direction of heat transfer.
Claims21
A fuel temperature control device comprising:
- a fuel heat exchange chamber with a fuel inlet and a fuel outlet;
- a secondary fluid heat exchange chamber with a secondary fluid inlet and a secondary fluid outlet;
- and
- a thermoelectric module in thermal contact with the two heat exchange chambers for transferring heat between said two heat exchange chambers to maintain fuel flowing through the fuel heat exchange chamber within a predetermined temperature range, said thermoelectric module having a first thermal transfer surface in thermal contact with said fuel heat exchange chamber and a second thermal transfer surface in thermal contact with said secondary heat exchange chamber.
1 more element
A fuel temperature control system for maintaining the temperature of the fuel within a predetermined range, said system comprising:
- a fuel source;
- a fuel distributing device;
- a fuel temperature control device coupled between said fuel source and said fuel distributing device, said fuel temperature control device having a fuel inlet coupled to said fuel source and a fuel outlet coupled to said fluid distributing device, a fuel heat exchange chamber, a secondary fluid heat exchange chamber and a thermoelectric module in thermal contact with the two heat exchange chambers for transferring heat between said two chambers to maintain fuel flowing through the fuel heat exchange chamber within a predetermined temperature range, said thermoelectric module having a first thermal transfer surface in thermal contact with said fuel heat exchange chamber and a second thermal transfer surface in thermal contact with said secondary heat exchange chamber;
- and
- control means for supplying control signals to said thermoelectric module for regulating the amount and direction of heat flow therethrough.
2 more elements
Dependencies are inferred from the claim text.