Expansible chamber device having rotating piston braking and rot

Details Expansible chamber device having rotating piston braking and rot Expansible chamber device having rotating piston braking and rot

1998-06-30

2000-03-14

Kamen, Noah P.

Rotary expansible chamber devices

Intermittently accelerated and receding members rotate in...

Each a working member

418 33, 123245, F01C 100

Patent

active

060364610

ABSTRACT:
An expansible chamber device includes a rotating piston braking system and a rotating piston synchronizing system. The rotating piston braking system controls the motion of the expansible chamber device piston assemblies to cause intermittent rotation of the piston assemblies in the same direction during recurrent periods of rotation, with each of the piston assemblies being stopped between the periods of rotation. The braking system includes a set of cam surfaces on the piston assemblies and a set of movable members adapted to alternately engage the first and second set of cam surfaces to stop the rotation of first piston assembly while permitting second piston assembly to rotate freely. A pair of elongate pivotable members engage the piston assemblies on one end and engage a slidable member on the other end. The slidable member and the pivotable members alternate between first and second positions in response to engagement with ramp and stop surfaces provided on the piston assemblies. The rotating piston synchronizing system includes a rotatable link member carried on a connection axle extending transversely from an elongate output shaft. The link member includes a pair of pins that are slidably engagable with opposed piston assembly pairs to permit relative rotation between the piston assembly pairs within a predetermined range. The rotating piston synchronizing system is totally contained within the housing of the expansible chamber device to save space.

REFERENCES:
patent: 4373879 (1983-02-01), Picavet
patent: 4390327 (1983-06-01), Picavet
patent: 4744736 (1988-05-01), Stauffer
patent: 4890591 (1990-01-01), Stauffer
patent: 5069604 (1991-12-01), Al-Szbih
patent: 5083539 (1992-01-01), Cornelio
patent: 5433179 (1995-07-01), Wittry
patent: 5727518 (1998-03-01), Blanco Palacios et al.

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