Crank shaft

Details Crank shaft Crank shaft

2006-09-26

2006-09-26

Fenstermacher, David (Department: 3682)

Machine element or mechanism

Elements

Cranks and wrist pins

C074S604000

Reexamination Certificate

active

07111525

ABSTRACT:
The invention relates to a crank shaft having a guide groove allowing the movement of a crank pin so as to adjust the reciprocating distance of a piston according to the rotating direction. The crank shaft comprises a rotation shaft for inducing the rotating movement; and a crank arm connected to the rotation shaft at the center and having at one side a guide groove provided horizontal in the radial direction for allowing free movement of a crank pin and elastic means provided within the guide groove to enhance the performance of sucking and compressing fluid.Accordingly, smooth and soft compression is enabled to prevent the overpressure loss. Also, the sucking performance is improved by using additional retreat due to the elastic means.

REFERENCES:
patent: 157765 (1874-12-01), Ruggles
patent: 589728 (1897-09-01), James
patent: 676629 (1901-06-01), Moore
patent: 1349094 (1920-08-01), Owen
patent: 1872763 (1932-08-01), Lee
patent: 2287472 (1942-06-01), Eby
patent: 2699119 (1955-01-01), Healey
patent: 3301557 (1967-01-01), Rogers
patent: 3496874 (1970-02-01), Findlay
patent: 4301695 (1981-11-01), Reiher
patent: 4319498 (1982-03-01), McWhorter
patent: 4467756 (1984-08-01), McWhorter
patent: 4622793 (1986-11-01), Oki
patent: 5681155 (1997-10-01), Hisanaga et al.
patent: 6253639 (2001-07-01), Richardson

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