Analytical expression for an optimised link bar mechanism for a beta-type Stirling engine
Publication: Research - peer-review › Article in proceedings – Annual report year: 2007
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Analytical expression for an optimised link bar mechanism for a beta-type Stirling engine. / Carlsen, Henrik; Bovin, Jonas Kabell.
In: Proceedings of The 13th International Stirling Engine Conference. Tokyo : The Japan Society of Mechanical Engineers, 2007. p. 91-95.Publication: Research - peer-review › Article in proceedings – Annual report year: 2007
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TY - GEN
T1 - Analytical expression for an optimised link bar mechanism for a beta-type Stirling engine
A1 - Carlsen,Henrik
A1 - Bovin,Jonas Kabell
AU - Carlsen,Henrik
AU - Bovin,Jonas Kabell
PB - The Japan Society of Mechanical Engineers
CY - Tokyo
PY - 2007
Y1 - 2007
N2 - The design of a mechanism for kinematic beta-type Stirling engines, where the displacer piston and the working piston share the same cylinder, is complicated. A well-known solution is the rhombic drive, but this solution depends on oil lubrication because of the gear wheels connecting the two counter rotating crank shafts. In a hermetically sealed Stirling engine it is an advantage to avoid oil in the crank case, making the application of the rhombic drive difficult. In this paper, another crank mechanism is presented, which has been developed for a 9 kW single cylinder engine. The new crank mechanism is a further development of the mechanism in a previous 9 kW engine. The crank mechanism for the beta-type Stirling engine is based on two four-link straight line mechanisms pointing up and down, respectively. The mechanism pointing upwards is connected to the working piston, while the mechanism pointing downwards is connected to the displacer piston. In the paper, an analytical analysis of an optimised link bar mechanism is presented, which can be used for determination of the geometry, the phase angle between the pistons and the in-accuracy of the straight line movement. Furthermore, the design of a mechanism for a new 9 kW engine using natural gas as fuel is presented.
AB - The design of a mechanism for kinematic beta-type Stirling engines, where the displacer piston and the working piston share the same cylinder, is complicated. A well-known solution is the rhombic drive, but this solution depends on oil lubrication because of the gear wheels connecting the two counter rotating crank shafts. In a hermetically sealed Stirling engine it is an advantage to avoid oil in the crank case, making the application of the rhombic drive difficult. In this paper, another crank mechanism is presented, which has been developed for a 9 kW single cylinder engine. The new crank mechanism is a further development of the mechanism in a previous 9 kW engine. The crank mechanism for the beta-type Stirling engine is based on two four-link straight line mechanisms pointing up and down, respectively. The mechanism pointing upwards is connected to the working piston, while the mechanism pointing downwards is connected to the displacer piston. In the paper, an analytical analysis of an optimised link bar mechanism is presented, which can be used for determination of the geometry, the phase angle between the pistons and the in-accuracy of the straight line movement. Furthermore, the design of a mechanism for a new 9 kW engine using natural gas as fuel is presented.
BT - Proceedings of The 13th International Stirling Engine Conference
T2 - Proceedings of The 13th International Stirling Engine Conference
SP - 91
EP - 95
ER -