Helm pump

Details Helm pump Helm pump

1994-07-26

1995-11-14

Bertsch, Richard A.

Pumps

Three or more cylinders arranged in parallel, radial, or...

417554, F04B 120

Patent

active

054661307

ABSTRACT:
A swash plate pump is particularly adapted for use as a helm pump for controlling a tiller of a marine vessel and has a rotor mounted within a pump housing. The rotor is rotatable by a wheel about a housing axis and has a plurality of cylinders therein disposed circumferentially around the rotor. A piston is resiliently mounted in each cylinder for reciprocal movement along a respective cylinder axis so that outer ends of the pistons engage a swash plate inclined obliquely to the housing axis at a fixed swash plate angle. Bleed conduits are provided in the outer ends of each piston, each bleed conduit having an opening disposed on the respective cylinder axis. The outer end of each piston is shaped to provide access to the bleed conduit between the bearing plate and the outer end of the piston, preferably by having a truncated conical end wall inclined at an end face angle equal to the swash plate angle to provide line contact between the end wall and the swash plate.

REFERENCES:
patent: 2345446 (1944-03-01), Baker
patent: 2492688 (1949-12-01), Dall
patent: 2667862 (1954-02-01), Muller
patent: 2699123 (1955-01-01), Bonnette et al.
patent: 2769393 (1956-11-01), Cardillo et al.
patent: 2842068 (1958-07-01), Sundin
patent: 2915985 (1959-12-01), Budzich
patent: 3159041 (1964-12-01), Firth et al.
patent: 3190232 (1965-06-01), Budzich
patent: 3266434 (1966-08-01), McAlvay
patent: 3303749 (1967-02-01), Ocule
patent: 3384028 (1968-05-01), Thoma
patent: 3422767 (1969-01-01), McAlvay
patent: 3453965 (1969-07-01), Heinrich
patent: 3739691 (1973-06-01), Bobler
patent: 3803987 (1974-04-01), Knapp
patent: 3935796 (1976-02-01), Wood
patent: 4765228 (1988-08-01), Wagenseil
patent: 4898077 (1990-02-01), McBeth
patent: 5058485 (1991-10-01), Cardillo

Affiliated with

Also associated with

Rating

Helm pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Helm pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helm pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1217049