FLOW CONTROL VALVE HAVING A MOTION CONVERSION DEVICE

摘要

A motion conversion device including a body, a first double-acting cylinder movable along a first axis and a second double-acting cylinder movable along a second axis angled relative to the first axis. The body includes several bores which form a closed circuit and house the first and second double-acting cylinders. Movement of the first double-acting cylinder along the first axis hydraulically or pneumatically pushes the second double-acting cylinder along the second axis. Also disclosed is a valve incorporating a motion conversion device with angled double-acting cylinders for moving a closure member between an open position and a closed position, and a method for opening and closing a valve by way of angled double-acting cylinders.

主权项

1. A valve comprising:
a valve body including a flow passage; a closure member movable between a closed position preventing fluid flow through the flow passage and an open position permitting fluid flow through the flow passage; a first bore, a second bore and a third bore forming a closed circuit arranged to receive a fluid; a first double-acting cylinder positioned in the first bore and movable along the first axis; a second double-acting cylinder positioned in the second bore movable along the second axis, the second double-acting cylinder operatively connected to the closure member; the first and second axes being angled relative to one another; and the closed fluid circuit arranged such that movement of the first double-acting cylinder along the first axis causes movement of the second double-acting cylinder along the second axis, thereby causing movement of the closure member between the closed position and the open position.