Title:
FREE PISTON INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2011/057891
Kind Code:
A3
Abstract:
The invention relates to a piston (12, 22, 102, 212, 222) for a free piston internal combustion engine (1, 100, 200) having a first end face (122a) on the combustion chamber side and a cylinder axis (X) substantially perpendicular to the first combustion chamber side, wherein the first end face on the combustion chamber side is formed such that the piston can be set into rotation in a first direction of rotation about the cylinder axis by a gas impinging on the first end face on the combustion chamber side. The invention further relates to a piston arrangement having at least one first piston according to the invention and a first piston rod (30, 106, 216), wherein the at least one first piston (12, 212) is attached to the first piston rod, wherein in particular the first piston rod extends in the axial direction to the cylinder axis of the first piston. The invention finally relates to an internal combustion engine (1, 100, 200) having a piston arrangement according to the invention, displaceable back and forth in an engine housing in the axial direction, wherein each end face of the at least one first piston on the combustion chamber side and/or at least one second piston faces a combustion chamber (14a, 14b, 24a, 24b, 214a, 214b, 224a, 224b) and bounds same in an axial direction.
Inventors:
HEINRICH FRANK (DE)
Application Number:
PCT/EP2010/066085
Publication Date:
August 18, 2011
Filing Date:
October 25, 2010
Export Citation:
Assignee:
HEINRICH FRANK (DE)
International Classes:
F01B3/06; F01B3/00; F02B71/00
Domestic Patent References:
| WO1993023655A1 | 1993-11-25 | |||
| WO2002070880A1 | 2002-09-12 | |||
| WO1999019646A2 | 1999-04-22 |
Foreign References:
| EP0065171A2 | 1982-11-24 | |||
| US4366784A | 1983-01-04 | |||
| US5351657A | 1994-10-04 | |||
| GB292738A | 1928-06-28 | |||
| FR2476763A1 | 1981-08-28 |
Attorney, Agent or Firm:
ZIMMERMANN, Gerd et al. (Josephspitalstr. 15, München, DE)
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