Pneumatic and hydraulic power control of drill

Details Pneumatic and hydraulic power control of drill Pneumatic and hydraulic power control of drill

1979-09-19

1982-06-15

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60420, 60431, F16D 3102

Patent

active

043344089

ABSTRACT:
An apparatus and method of controlling the input power to a drill feed or other hydraulic system in which the hydraulic power source is obtained from a compressed air supply. Wherein, the flow of air is varied in response to a hydraulic signal controlled by the load demand of the hydraulic system. Low and high mode controls are provided to operate hydraulically actuated mechanisms; and a hydraulic absorbing load is imposed to prevent stall or overspeed of the pump and motor during low load conditions.

REFERENCES:
patent: Re28717 (1976-02-01), Smith
patent: 3583154 (1971-06-01), Utter
patent: 3890360 (1975-06-01), Pruvot
patent: 4070857 (1978-01-01), Wible
patent: 4118149 (1978-10-01), Hagberg
patent: 4129987 (1978-12-01), Blume
patent: 4168612 (1979-09-01), Nikolaus
patent: 4199942 (1980-04-01), Kasper
patent: 4209988 (1980-07-01), Langworthy

Affiliated with

Also associated with

Rating

Pneumatic and hydraulic power control of drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pneumatic and hydraulic power control of drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic and hydraulic power control of drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1914244