Apparatus for heat transfer within a heat engine
First Claim
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1. A heat engine body for a heat engine comprising:
- (a) a container defining a sealed region within which a working fluid is circulated when the heat engine is in use, the sealed region having first and second ends which are in fluid flow communication via a working fluid passageway, the first end is at a different temperature than the second end when the heat engine is in use; and
, (b) a heat exchanger mounted in a portion of the sealed region through which the working fluid travels, the heat exchanger comprising at least one fin extending transversely to the longitudinal direction and having first and second opposed sides and openings there through whereby working fluid flows through the openings from the first opposed side to the second opposed side via the openings to enhance heat transfer between the working fluid and the heat exchanger, when the heat engine is in use.
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Abstract
A heat engine is constructed from sheet metal and the like. The heat engine has an outer container and inner container which contains a displacer and a power piston. A plurality of positioning members are provided to dimensionally stabilize the inner and outer containers. By providing positioning members that extend between the inner and the outer containers, a sandwiched construction is obtained which allows the inner and outer containers to reinforce each other thus permitting the use of thin walled containers and improving the thermal efficiency of the heat engine and decreasing the weight of the heat engine.
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Citations
51 Claims
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1. A heat engine body for a heat engine comprising:
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(a) a container defining a sealed region within which a working fluid is circulated when the heat engine is in use, the sealed region having first and second ends which are in fluid flow communication via a working fluid passageway, the first end is at a different temperature than the second end when the heat engine is in use; and
,(b) a heat exchanger mounted in a portion of the sealed region through which the working fluid travels, the heat exchanger comprising at least one fin extending transversely to the longitudinal direction and having first and second opposed sides and openings there through whereby working fluid flows through the openings from the first opposed side to the second opposed side via the openings to enhance heat transfer between the working fluid and the heat exchanger, when the heat engine is in use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 34)
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21. A heat engine body comprising:
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(a) an outer member comprising an outer longitudinally extending wall having an outer surface and first and second longitudinally spaced apart ends, the outer wall surrounding an outer cavity;
(b) an inner member spaced from the outer member and comprising an inner longitudinally extending wall surrounding an inner cavity having first and second longitudinally spaced apart ends, the inner longitudinally extending wall having first and second longitudinally spaced apart ends, the first end of the cavity is at a different temperature than the second end of the cavity when the heat engine is in use, the first and second ends of the inner cavity being in fluid flow communication via a passageway, the first and second ends of the inner cavity and the passageway defining a sealed region; and
,(c) a plurality of members longitudinally spaced apart interior of the heat engine body along on a portion of a wall for transferring heat between a fluid and the wall, the spaced apart members having a surface extending outwardly from the wall, the surface having first and second opposed sides, at least some of the spaced apart members having a plurality of openings, whereby the fluid flows from the first opposed side to the second opposed side through the openings. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39)
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40. A heat engine body comprising:
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(a) a container defining a sealed region within which a working fluid is circulated when the heat engine is in use, the sealed region having first and second ends which are in fluid flow communication via a working fluid passageway, the first end is at a different temperature than the second end when the heat engine is in use; and
,(b) the heat engine body having a wall having a surface along which the working fluid flows and at least one fin which is mounted on the wall by press fitting. - View Dependent Claims (41, 42, 43)
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44. A heat engine body comprising:
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(a) an outer member comprising an outer longitudinally extending wall having an outer surface and an inner surface and first and second longitudinally spaced apart ends;
(b) a sealed region positioned internally within the outer wall within which a working fluid is circulated when the heat engine is in use, the sealed region having first and second longitudinally spaced apart ends which are in fluid flow communication via a working fluid passageway, the first end of the sealed region is at a different temperature than the second end of the sealed region when the heat engine is in use; and
,(c) a heat exchange member positioned adjacent the inner surface of the outer wall and comprising a longitudinally extending member having first and second longitudinally extending opposed sides and a plurality of openings, the openings have associated main louvres. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51)
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Specification