Inner rotor of internal gear pump having convex small...

Details Inner rotor of internal gear pump having convex small... Inner rotor of internal gear pump having convex small...

2005-01-12

2009-08-11

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Moving cylinder

Rotating

C418S109000, C418S179000, C403S359600, C403S365000, C403S404000, C464S160000, C464S179000

Reexamination Certificate

active

07572117

ABSTRACT:
A crankshaft and an mounting hole have two main circular arc parts on the same circle; and two connecting parts for connecting the adjacent main circular arc parts, and have a cross-sectional shape in which the connecting parts facing each other are substantially parallel. The connecting parts of the mounting hole are formed in the shape of a large circular arc which projects inward. The torque of the crankshaft is transmitted to the mounting hole in a state where the connecting parts of the crankshaft and the connecting parts of the mounting hole which are formed in the shape of a large circular arc come into line contact with each other; therefore, the value of any local stress generated in the mounting hole can be reduced.

REFERENCES:
patent: 5163826 (1992-11-01), Cozens et al.
patent: 5199971 (1993-04-01), Akechi
patent: 5226798 (1993-07-01), Eisenmann
patent: 6089843 (2000-07-01), Kondoh
patent: 6676394 (2004-01-01), Bodzak
patent: 6679692 (2004-01-01), Feuling
patent: 39 38 346 (1991-04-01), None
patent: 59-107987 (1984-07-01), None
patent: 60-180783 (1985-11-01), None
patent: 61-223282 (1986-10-01), None
patent: 63-223382 (1988-09-01), None
patent: 11-343985 (1999-12-01), None
patent: 2004-332754 (2004-11-01), None

Affiliated with

Also associated with

Rating

Inner rotor of internal gear pump having convex small... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inner rotor of internal gear pump having convex small..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inner rotor of internal gear pump having convex small... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4076310