Double-headed and swash plate type stirling engine
First Claim
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1. A double-headed and swash plate type Stirling engine, comprising:
- a cylinder block including a heat insulator disposed at a central portion in an axial direction, an axial central hole, a plurality of bores disposed in parallel with the axial central hole, and a swash plate chamber formed therein and opened to a center of the bores;
a front housing enclosing a front end of said cylinder block;
a rear housing enclosing a rear end of said cylinder block;
a shaft rotatably disposed in said axial central hole of said cylinder block;
a swash plate fixed around said shaft, and disposed rotatably in said swash plate chamber of said cylinder block;
a plurality of double-headed pistons coupled to said swash plate by shoes, and disposed reciprocally in said bores of said cylinder block;
a plurality of front spaces formed by said front housing, said bores and a front end of said double-headed pistons in said cylinder block, and containing an operating gas therein;
a plurality of rear spaces formed by said rear housing, said bores and a rear end of said double-headed pistons in said cylinder block, and containing said operating gas therein;
a first heat exchanger for carrying out heat exchange around said front spaces;
a second heat exchanger for carrying out heat exchange around said rear spaces; and
a plurality of connecting pipes connecting said front spaces to said rear spaces with a predetermined phase difference, each of said plurality of connecting pipes and the connected front and rear spaces having a constant volume, and including a heat accumulator disposed between said front spaces and said rear spaces.
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Abstract
A double-headed swash plate type Stirling engine includes double headed pistons defining front spaces and rear spaces and anchored to the swash plate by shoes. Thus, the reciprocal movement of the double-headed pistons, resulting from the expansion and compression of an operating gas in the front and rear spaces, are directly converted into the rotary movement of the swash plate. Hence, the Stirling engine has a very simplified construction.
14 Citations
14 Claims
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1. A double-headed and swash plate type Stirling engine, comprising:
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a cylinder block including a heat insulator disposed at a central portion in an axial direction, an axial central hole, a plurality of bores disposed in parallel with the axial central hole, and a swash plate chamber formed therein and opened to a center of the bores; a front housing enclosing a front end of said cylinder block; a rear housing enclosing a rear end of said cylinder block; a shaft rotatably disposed in said axial central hole of said cylinder block; a swash plate fixed around said shaft, and disposed rotatably in said swash plate chamber of said cylinder block; a plurality of double-headed pistons coupled to said swash plate by shoes, and disposed reciprocally in said bores of said cylinder block; a plurality of front spaces formed by said front housing, said bores and a front end of said double-headed pistons in said cylinder block, and containing an operating gas therein; a plurality of rear spaces formed by said rear housing, said bores and a rear end of said double-headed pistons in said cylinder block, and containing said operating gas therein; a first heat exchanger for carrying out heat exchange around said front spaces; a second heat exchanger for carrying out heat exchange around said rear spaces; and a plurality of connecting pipes connecting said front spaces to said rear spaces with a predetermined phase difference, each of said plurality of connecting pipes and the connected front and rear spaces having a constant volume, and including a heat accumulator disposed between said front spaces and said rear spaces. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A double-headed and swash plate type Stirling engine, comprising:
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a cylinder block including a heat insulator disposed at a central portion in an axial direction, an axial central hole, a plurality of bores disposed in parallel with the axial central hole, and a swash plate chamber formed therein and opened to a center of the bores; a front housing enclosing a front end of said cylinder block; a rear housing enclosing a rear end of said cylinder block; an output shaft rotatably disposed in said axial central hole of said cylinder block; a swash plate fixed around said shaft, and disposed rotatably in said swash plate chamber of said cylinder block; a plurality of double-headed pistons coupled to said swash plate by shoes, and disposed reciprocally in said bores of said cylinder block; a plurality of front spaces formed by said front housing, said bores and a front end of said double-headed pistons in said cylinder block, and containing an operating gas therein; a plurality of rear spaces formed by said rear housing, said bores and a rear end of said double-headed pistons in said cylinder block, and containing said operating gas therein; a heating means for heating said front spaces; a cooling means for cooling said rear spaces; and a plurality of connecting pipes connecting said front spaces to said rear spaces with a predetermined phase difference, each of said plurality of connecting pipes and the connected front and rear spaces having a constant volume, and including a heat accumulator disposed between said front spaces and said rear spaces. - View Dependent Claims (8, 9, 10)
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11. A double-headed and swash plate type Stirling engine, comprising:
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a cylinder block including a heat insulator disposed at a central portion in an axial direction, an axial central hole, a plurality of bores disposed in parallel with the axial central hole, and a swash plate chamber formed therein and opened to a center of the bores; a front housing enclosing a front end of said cylinder block; a rear housing enclosing a rear end of said cylinder block; a driving shaft rotatably disposed in said axial central hole of said cylinder block; a swash plate fixed around said shaft, and disposed rotatably in said swash plate chamber of said cylinder block; a plurality of double-headed pistons coupled to said swash plate by shoes, and disposed reciprocally in said bores of said cylinder block; a plurality of front spaces formed by said front housing, said bores and a front end of said double-headed pistons in said cylinder block, and containing an operating gas therein; a plurality of rear spaces formed by said rear housing, said bores and a rear end of said double-headed pistons in said cylinder block, and containing said operating gas therein; a heat radiating means for radiating the heat of said front spaces; a heat receiving means for receiving the heat of said rear spaces; and a plurality of connecting pipes connecting said front spaces to said rear spaces with a predetermined phase difference, each of said plurality of connecting pipes and the connected front and rear spaces having a constant volume, and including a heat accumulator disposed between said front spaces and said rear spaces. - View Dependent Claims (12, 13, 14)
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Specification