Reciprocating piston device with changeable stroke length

Details Reciprocating piston device with changeable stroke length Reciprocating piston device with changeable stroke length

1978-01-30

1981-01-20

Freeh, William L.

Pumps

Expansible chamber type

Plural pumping chambers

74571R, 92 134, F04B 4900, F04B 3900, F01B 3100

Patent

active

042459664

ABSTRACT:
In a device such as a refrigerant compressor provided with a reciprocating piston having a stroke length which can be changed from one value to another in accordance with the direction of rotation of the crankshaft driving a connecting rod, there is provided an arrangement in which the top deadcenter position of the piston can be maintained irrespective of the changes in stroke length by an eccentric ring which has limited rotation on the crankshaft crankpin, and a second eccentric ring encompassing the first eccentric ring and which has limited rotation relative to the encompassing strap end of the connecting rod. With this arrangement, both the throw of the crankpin means and the effective length of the connecting rod are generally concurrently changed inversely when the crankshaft rotates in one direction or alternatively in the other direction.

REFERENCES:
patent: 1212791 (1917-01-01), Manly
patent: 1908612 (1933-05-01), Johnson

Affiliated with

Also associated with

Rating

Reciprocating piston device with changeable stroke length does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reciprocating piston device with changeable stroke length, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reciprocating piston device with changeable stroke length will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1764634