Continuous-combustion piston engine

• US 6,412,273 B1
• Filed: 03/06/2000
• Issued: 07/02/2002
• Est. Priority Date: 03/05/1999
• Status: Expired due to Term

• Current Assignee: Getas Gmbh Gesellschaft Fur
• Original Assignee: Ulrich Rohs
• Inventors: Rohs, Ulrich
• Primary Examiner(s): NGUYEN, HOANG M
• Application Number:
  US09/519,121
• Time in Patent Office: 848 Days
• Field of Search: 60/396, 60/396.3, 123/56.2, 123/56.5
• US Class Current: 60/39.63
• CPC Class Codes: F01B 3/0005 having two or more sets of cylinders or pistons
• CPC Class Codes: F02B 2075/025 two
• CPC Class Codes: F02B 75/26 Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis
• CPC Class Codes: F02G 3/00 Combustion-product positive-displacement engine plants

Abstract

In a continuous-combustion piston engine in which working mediums flowing out of a combustion chamber is successively fed to at least two cylinders, each of the cylinders is stationary in relationship to the combustion chamber and has an inlet. Controls are provided that successively connect the inlet to the combustion chamber and separate it from the combustion chamber. Mechanical losses are minimized in this manner.

Claims

1. A continuous-combustion piston engine in which a working medium flowing from a combustion chamber is successively fed to at least two cylinders, wherein each cylinder is stationary in reference to the combustion chamber and has an inlet, wherein controls are provided that successively connect the inlet to the combustion chamber and separate it from the combustion chamber, wherein at least one inlet can be opened and closed via at least one slide valve, and wherein said continuous-combustion piston engine further comprises an output shaft that is coaxial to the combustion chamber and moves in relation to a cylinder block that holds the cylinders.

2. A piston engine according to claim 1, wherein the slide valve opens and closes in synchrony with rotation of the piston engine.

3. A piston engine according to claim 1, wherein the output shaft has a swash plate which is connected via connecting rods with pistons working in the cylinders.

4. A piston engine according to claim 1, wherein the output shaft has a cam disc along which pistons run that work in the cylinders.

5. A piston engine according to claim 2, wherein each cylinder further comprises an outlet opened and closed by a valve.

6. A piston according to claim 1, wherein the cylinders are symmetrical to the combustion chamber.

7. A piston engine according to claim 1, wherein output from the cylinders is dual flow so as to permit an auxiliary drive selected from the group consisting of oil pump drive, fuel pump drive, and distributor pump drive.

8. A piston engine according to claim 1, further comprising a flow channel from the combustion chamber to each inlet for flowing working medium into the cylinders.

34. A continuous-combustion piston engine according to claim 1, further comprises an oil feed channel in and coaxial to a central output shaft comprising oil distributors that radiate outward and at least one radial oil feed that receives oil from a pressurized ring channel.

9. A continuous-combustion piston engine in which a working medium flowing from a combustion chamber is successively fed to at least two cylinders, wherein:

(1) each cylinder is stationary in reference to the combustion chamber and has an inlet,

(2) controls are provided that successively connect the inlet to the combustion chamber and separate it from the combustion chamber,

(3) said continuous-combustion piston engine further comprises an output shaft that is coaxial to the combustion chamber and moves in relation to a cylinder block that holds the cylinders,

(4) at least one inlet can be opened and closed via at least one slide valve,

(5) the slide valve is a cylindrical sleeve around the piston in the cylinder that has at least one opening corresponding to the inlet, and

(6) the opening mates with the inlet in synchrony with the engine rotation.

10. A piston engine according to claim 9, wherein the sleeve rotates around the cylinder axis.

11. A piston engine according to claim 9, wherein the sleeve executes an axial stroke in relation to the cylinder.

12. A piston engine according to claim 9, wherein the sleeve executes a periodic motion whose period is a fraction of the engine speed.

18. A piston engine according to claim 9, comprising a flow channel extending from the combustion chamber to each inlet.

19. A piston engine according to claim 9, further comprising a piston in each cylinder, and means exist to move the dead center of the pistons in reference to a position of the controls.

20. A piston engine according to claim 9, wherein each cylinder comprises an outlet opened and closed by a valve.

21. A piston engine according to claim 9, wherein there is at least one compressor, which is separate from the cylinders, with the compressor comprising an inlet valve and an outlet valve.

22. A piston engine according to claim 21, wherein at least one of the valves is passive.

23. A piston engine according to claim 21, wherein the inlet valve has a valve cover seated on compressor head of the compressor that is pulled by a spring thereagainst.

24. A piston engine according to claim 21, wherein the inlet valve contacts a stop when it opens, and there is an active spring element between the valve and the stop.

25. A piston engine according to claim 21, wherein the compressor comprises a ball valve as the outlet valve.

26. A piston engine according to claim 21, further comprising an intake chamber that is connected with at least one compressor and is positioned at the end of the engine facing away from the combustion chamber.

27. A piston engine according to claim 9, further comprising a compressor cylinder with a compressor piston that is connected via a compressor connection rod with a working connection rod of a working piston in a working cylinder.

28. A piston engine according to claim 27, wherein there is a rigid connection between the working connection rod and the compressor connection rod.

29. A piston engine according to claim 28, wherein the working connection rod and the compressor connection rod are provided as a common connecting rod.

30. A piston engine according to claim 29, wherein the connecting rod is provided in two parts.

31. A piston engine according to claim 29, wherein the connecting rod comprises two rollers that grasp a cam disc of an output shaft.

32. A piston engine according to claim 31, wherein at least one of the rollers contacts a shoulder or a guide disc that contacts the cam disc radially to the outside.

33. A piston engine according to claim 31, wherein the cam disc has a width selected to provide an unbalance compensates for the unbalance of the piston arrangement.

35. A piston engine according to claim 9, comprising a coolant stream that directly contacts a guide in a cylinder.

36. A piston engine according to claim 35, wherein the coolant stream rapidly flows through small holes and is guided directly next to a flow channel.

37. A piston engine according to claim 35, wherein the coolant stream is fed from a cylinder to a compressor.

38. A piston engine according to claim 9, comprising two parallel coolant streams of which one flows through a cylinder block and one which flows through a compressor block, and the coolant streams are in series.

39. A piston engine according to claim 9, wherein each cylinder comprises an outlet, and each outlet is connected to an exhaust manifold that comprises a common exhaust connection.

40. A piston engine according to claim 39, comprises two outlets connected via the exhaust manifold directly to each other via a pressure equalizer.

41. A piston engine according to claim 9, further comprising a compressor that compresses a fluid and feeds it to the combustion chamber, wherein each cylinder comprises an outlet through which the expanded working medium leaves the cylinder, and wherein there is a heat exchanger between the compressor and the combustion chamber that transfers energy from the expanded working medium leaving the outlet of the cylinder to the fluid that is being fed by the compressor to the combustion chamber.

42. A piston engine according to claim 9, wherein the combustion chamber comprises a flame area with a ceramic lining.

43. A piston engine according to claim 42, wherein the ceramic lining is energized with a bias stress at least during operation to prevent tensile force from arising.

44. A piston engine according to claim 42, wherein the ceramic lining has cooling ribs.

45. A piston engine according to claim 9, wherein the combustion chamber has a flame area with openings in a flame area wall through which a fluid can be fed into the flame area.

46. A piston engine according to claim 9, further comprising an injection pump that feeds fuel to the combustion chamber and is controlled by a lambda probe.

47. A piston engine according to claim 46, wherein the lambda probe is at the outlet side after a cylinder.

48. A piston engine according to claim 47, wherein the lambda is controlled at least at a certain load at a minimum of 1.

49. A piston engine according to claim 9, further comprising an injection pump that supplies the combustion chamber with fuel and is controlled by a temperature measurement.

50. A piston engine according to claim 49, wherein the temperature is measured at the outlet side following a cylinder.

51. A piston engine according to claim 49, wherein the temperature is controlled at about 1,000°

C., at least while idling.

13. A continuous-combustion piston engine in which a working medium flowing from a combustion chamber is successively fed to at least two cylinder, wherein each cylinder has an inlet, and controls are provided that successively connect the inlet to the combustion chamber and separate it from the combustion chamber, and wherein a heat shield with an opening thereon is provided between the combustion chamber and each cylinder.

14. A piston engine according to claim 13, wherein at least one inlet of the cylinders can be opened and closed via at least one slide valve, said slide valve having at least one opening that corresponds to the inlet and mates with the inlet synchronized with the engine rotation, and wherein the slide valve opening and the heat shield opening move in essentially the same direction when the inlet is released.

15. A piston engine according to claim 13, wherein the heat shield can be placed in front of the inlet.

16. A continuous-combustion piston engine in which a working medium flowing from a combustion chamber is successively fed to at least two cylinders, wherein each cylinder has an inlet, and controls are provided that successively connect the inlet to the combustion chamber and separate it from the combustion chamber, wherein the combustion chamber has a rotating combustion chamber floor with at least one flow channel for flowing the working medium from the combustion chamber to the cylinders, and wherein the floor shifts so that the flow channel is successively aligned with at least one inlet of the cylinders.

17. A continuous-combustion piston engine in which a working medium flowing from a combustion chamber is successively fed to at least two cylinders, wherein each cylinder has an inlet, and controls are provided that successively connect the inlet to the combustion chamber and separate it from the combustion chamber, wherein the combustion chamber has a rotating combustion chamber floor with at least one flow channel for flowing the working medium from the combustion chamber to the cylinders, and wherein the floor shifts so that the flow channel is successively aligned with at least one inlet of the cylinders, wherein said piston engine further comprises a heat shield between the combustion chamber and each cylinder, and wherein said heat shield is shifted with the rotating combustion chamber floor.