Patent EA-003980-B1 (EA)
Title: Stirling engine
IPC: F02G1/053
Filed: 2001-05-29
Abstract: 1. A Stirling engine (10, 50, 72) comprising at least one working piston (52) and at least one displacement piston (4), characterized in that for a power control by means of the transmission of the linear movement of a drive part (2) into the linear movement of a driven part (8), a lever (5) articulately connected to the drive part and to the driven part (2, 8) is provided, which lever has an associated displaceable pivot point (7), the bearing point of the lever (5) travelling on the pivot point (7) according to a curve during the movement transmission. 2. A Stirling engine according to claim 1, characterized in that the lever (5) has a connecting link (6) defining the given curve, which connecting link slides over the pivot point (7), e.g. via a roller defining this pivot point (7), during the movement transmission. 3. A Stirling engine according to claim 1 or 2, characterized in that the curve or connecting link (6) has the shape of a circular arc. 4. A Stirling engine according to any one of claims 1 to 3, characterized in that the pivot point (7) is arranged on a pivot arm (12). 5. A Stirling engine according to claim 4, characterized in that the pivot arm (12) is connected to an adjustment device (14, 57). 6. A Stirling engine according to claim 5, characterized in that the adjustment device (14, 57) is connected via a linkage (13) each with a pivot arm (12) and is symmetrically provided between at least two levers (5). 7. A Stirling engine according to claim 6, characterized in that a spindle drive (14) is provided as the adjustment device. 8. A Stirling engine according to claim 6, characterized in that a connecting link guide (57) is provided as the adjustment device. 9. A Stirling engine according to any one of claims 1 to 8, characterized in that the displacement piston (4) is associated with the lever (5) for a power control. 10. A Stirling engine according to any one of claims 1 to 8 is associated with the lever (5) for a power control. 11. A Stirling engine according to claim 10, characterized in that the displacement piston (52) is associated with a lever (5') having a non-displaceable pivot point. 12. A Stirling engine according to any one of claims 1 to 8 and the displacement piston (4) form a unit (73) which is associated with the lever (5). 13. A Stirling engine according to any one of claims 1 to 12 articulately connected to a piston rod (3, 3'), linearly guided in a straight-line guide (30) and connected to the displacement piston (4) and to the working piston (52), respectively. 14. A Stirling engine according to any one of claims 1 to 13, characterized in that the displacement piston (4) on both sides and the working piston (52) on one side thereof has a lamella-type wave-shaped section (23) in neighboring heater and cooler surfaces (24, 25). 15. A Stirling engine according to claim 14, characterized in that the lamella-type wave-shaped sections (23) of the displacement piston (4) are arranged turned by 90 degree relative to each other. 16. A Stirling engine according to any one of claims the driven part (8) is converted into a rotational movement by means of a connecting link (32) which serves as crank.