Apparatus for controlling the supply of high-pressure liquid to

Details Apparatus for controlling the supply of high-pressure liquid to Apparatus for controlling the supply of high-pressure liquid to

1983-12-09

1986-01-21

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 12, 299 42, E21F 502, E21C 708

Patent

active

045654107

ABSTRACT:
High-pressure liquid is controlled for delivery to nozzles disposed near cutting tools or on the periphery of a shearer drum for a longwall mining machine. The shearer drum includes a central shaft which is extended to project from a support arm for the drum containing drive gearing to rotate the drum. The shaft rotates in the same direction and speed as the drum. The extended end of the shaft is used to support a live seal by which high-pressure liquid is introduced to a central bore in the shaft. Between the live seal and the support arm for the drum, there is provided a casing that does not rotate with the shaft and includes sector recesses in the bore thereof to supply liquid to separate bores in the shaft for controlling the discharge of liquid from valves. The valves are separately controlled by the liquid pressure in the sector recesses so that only nozzles directed to the coal face receive the pressurized liquid.

REFERENCES:
patent: 3767265 (1973-10-01), French et al.
patent: 4049318 (1977-09-01), Fruin
patent: 4212497 (1980-07-01), Borowski et al.
patent: 4368925 (1983-01-01), Honke

Affiliated with

Also associated with

Rating

Apparatus for controlling the supply of high-pressure liquid to does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for controlling the supply of high-pressure liquid to , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling the supply of high-pressure liquid to will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2295681