Piston and drum drive system

Details Piston and drum drive system Piston and drum drive system

1989-12-12

1990-11-27

Ro, Bentsu

Electricity: motive power systems

Motor-reversing

318 10, 242 54R, 254361, 254292, H02P 122

Patent

active

049738933

ABSTRACT:
A drum and piston drive system incorporates within the interior of a drum used for reeling cable in and out, a reversible electric motor which drives the drum from the inside through a gearset. Also carried within the drum is a manifold structure including a gear pump driven directly from the opposite end of the reversible motor operating in a closed hydraulic circuit to supply hydraulic pressure to reversibly move a piston in a cylinder. The manifold includes check valves limiting the pump output pressure, and a pair of accumulators which maintain a desired pressure on both sides of the pump to avoid cavitation. Relief valves in the manifold limit the pressure to the piston and check valves in each line to the cylinder block reverse flow. The system operates to control and coordinate drum rotation movement and direction with the direction and movement of the piston.

REFERENCES:
patent: 2443763 (1948-06-01), Dahlgren et al.
patent: 3206628 (1965-09-01), Korthaus et al.
patent: 3448962 (1969-06-01), Miller
patent: 3807697 (1974-04-01), Cotreau et al.
patent: 3836121 (1974-09-01), Jones
patent: 4042214 (1977-08-01), Brener
patent: 4169580 (1979-10-01), Hatlapa et al.
patent: 4275870 (1981-06-01), Henneman et al.
patent: 4404891 (1983-09-01), Turnquist et al.

Affiliated with

Also associated with

Rating

Piston and drum drive system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1034009