Method of testing a gas shut-down valve and a system for exercising the method
AssigneeIOP Marine A/S
InventorBent Kortsen
Life of this patent
Estimating the term…
Abstract
Method of testing a gas shut-down valve for a combustion engine, by which method the valve is placed in a chamber of a holder 1 and the valve in closed condition is influenced by a non-burnable test gas under pressure to check whether the valve seat and the sealing ring 6 of the valve are close. Further the opening and closing functions of the valve are to be checked.
Claims8
A method of testing a gas shut-down valve for a combustion engine for leakages at the valve seat and at a sealing ring (6) surrounding the valve characterized in that the valve with the surrounding sealing ring is placed in a chamber of a holder (1), so that the chamber is divided into a first portion and a second portion including the valve seat, and the valve in closed condition is influenced by a non-burnable test gas under pressure, the test gas being supplied to the second portion of the chamber and the remainder of the valve being supplied with sealing oil at a pressure higher than the pressure of the gas.
A system of testing a shut-down valve for a combustion engine comprising a holder (1) with a chamber, in which the valve can be placed, said system further comprising a unit for supplying of sealing oil to the valve, a unit for supplying of control oil to the valve, a unit for supplying of test gas to the holder (1) and a unit for testing the valve for leakages at the valve seat and/or the sealing ring (6) by observing discharges of gas if any from the holder.
A method of testing a gas shut-down valve of a combustion engine for leakage, said valve comprising a valve seat and a sealing ring surrounding the valve, said method comprising the steps of:
- placing the valve in a chamber of a holder so that the sealing ring establishes a first portion and a second portion in the chamber, and said valve seat is disposed in the first portion;
- applying test gas to the first portion of the chamber with the valve seat;
- applying sealing oil to the remainder of the valve;
- wherein the sealing oil is applied at a pressure higher than the pressure of the test gas;
- porting any test gas which passes the valve seat or the sealing ring to a liquid-filled container for detection of any leakage of gas past the valve seat or sealing ring.
Dependencies are inferred from the claim text.