Hydraulic prop having a filling valve and a clearing valve...

Details Hydraulic prop having a filling valve and a clearing valve... Hydraulic prop having a filling valve and a clearing valve...

E - Fixed Constructions

21

D

E21D 15/44 (2006.01) E21D 15/51 (2006.01)

Patent

CA 2097259

ABSTRACT A single-prop valve, in the housing of which are integrated a non-return valve for setting, a check valve for clearing, and a pressure-limiting valve to protect the prop against overloading, is provided for use in underground single-prop workings. The valve housing of the pressure-limiting valve is moved hydraulically, in that the housing is also equipped on the clearing side with a coupler that has a locking groove and a catch projection. A slide pin that is appropriately loaded by hydraulic pressure acts on the valve housing and moves this by a preset amount so that the check valve is opened by this and the hydraulic fluid can flow from the interior of the prop through the suction pump connector that is arranged on the setting side. Here, the channels and chambers are so dimensioned that an increased quantity of hydraulic fluid can drain off, this procedure being enhanced by a pump that is connected to the suction pump connector.

Affiliated with

Also associated with

Rating

Hydraulic prop having a filling valve and a clearing valve... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic prop having a filling valve and a clearing valve..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic prop having a filling valve and a clearing valve... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2048479