Oscillating Piston Machine

• US 20090031979A1
• Filed: 08/22/2008
• Published: 02/05/2009
• Est. Priority Date: 02/22/2006
• Status: Active Grant

• Current Assignee: Herbert Huettlin
• Original Assignee: Herbert Huettlin
• Inventors: Huettlin, Herbert
• Granted Patent: US 7,909,014 B2
• Time in Patent Office: Days
• US Class Current: 123/18.A
• CPC Class Codes: F01B 9/06 the piston motion being transmitted by curved surfaces
• CPC Class Codes: F01C 21/0836 comprising guiding means, e.g. cams, rollers
• CPC Class Codes: F01C 21/0872 the fluid being other than the working fluid
• CPC Class Codes: F01C 21/089 for synchronised movement of the vanes
• CPC Class Codes: F01C 9/005 the piston oscillating in the space, e.g. around a fixed point rotary piston machines or engines with non-parallel axes of rotation between co-operating members F01C3/00
• CPC Class Codes: F02B 53/04 Charge admission or combustion-gas discharge
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

An oscillating piston engine comprises a housing in which at least one piston is arranged which can revolve in the housing about an axis of rotation which is fixed in relation to the housing, and which performs when revolving about the axis of rotation reciprocating pivoting movements about pivot axis extending perpendicularly to the axis of rotation between a first end position and a second end position, the at least one piston having a running element which runs, as the piston revolves about the axis of rotation, along at least one control cam which is configured in such a way that the pivoting movements of the at least one piston are derived from the revolving movement of the running element along the control cam. A second running element mounted to the piston and/or a negative-pressure source applying a negative pressure to the backside of the piston are provided for assisting the return of the piston from the first end position to the second end position of the pivoting movement of the piston.

Claims

1. An oscillating piston engine, comprising:

a housing,

a first piston arranged in said housing, said first piston being able to revolve in said housing about an axis of rotation which is fixed in relation to said housing, and to perform when revolving about said axis of rotation reciprocating pivoting movements about a pivot axis extending perpendicularly to said axis of rotation between a first end position and a second end position,

a first running element mounted to said first piston,

a first control cam arranged in said housing, said first running element running, as said first piston revolves about said axis or rotation, along said first control cam, said first control cam being configured such that said pivoting movements of said first piston are derived when said first running element runs along said first control cam,

a second running element mounted to said first piston, and

a second control cam arranged laterally adjacent to said first control cam in direction of said rotation axis, said second running element running along said second control cam when said first piston revolves about said axis of rotation, said second running element assisting the return of said first piston at least from said first end position to said second end position.

2. The oscillating piston engine of claim 1, wherein said second control cam is configured such that said second running element, which runs along said second control cam, exerts a tensile force on said first piston in direction toward said second end position.

3. The oscillating piston engine of claim 1, wherein said second running element is a running roller.

4. The oscillating piston engine of claim 1, wherein said second running element is a sliding shoe.

5. The oscillating piston engine of claim 1, wherein said second running element is resiliently mounted on said first piston.

6. The oscillating piston engine of claim 1, wherein said first control cam and said second control cam are configured as cam grooves which extend substantially parallel to each other and are separated from each other by a web, said first running element and said second running element being guided on flanks of said cam grooves that are curved in opposite directions to each other.

7. The oscillating piston engine of claim 1, wherein at least a second piston is arranged in said housing, which can revolve together with said first piston about said axis of rotation and which can pivot about a second pivot axis which does not run parallel to said pivot axis of said first piston, said at least one second piston having a third running element which runs along said second control cam for deriving reciprocating pivoting movements of said at least one second piston when revolving about said axis of rotation between a first pivot end position and a second pivot end position, and a fourth running element which runs along said first control cam for assisting the return of said at least one second piston, at least from said first pivot end position to said second pivot end position of said at least one second piston.

8. The oscillating piston engine of claim 1, wherein said first running element is configured as a roller, below the running surface of which ventilation blades are arranged.

9. An oscillating piston engine, comprising:

a housing,

a first piston arranged in said housing, said first piston being able to revolve in said housing about an axis of rotation which is fixed in relation to said housing, and to perform when revolving about said axis of rotation reciprocating pivoting movements about a pivot axis extending perpendicularly to said axis of rotation between a first end position and a second end position,

a running element mounted to said first piston,

a control cam arranged in said housing, said running element running, as said first piston revolves about said axis or rotation, along said control cam, said control cam being configured such that said pivoting movements of said first piston are derived when said running element runs along said control cam, and

a negative-pressure source for generating a negative pressure applied to a back of said first piston in order to assist the return of said first piston at least from said first end position to said second end position.