Patent ID: 9709077
Date: 2017-07-18
CPC Classifications: F15B

Claim:
1. A piston type hydro pneumatic accumulator with internal leak detection having a gas chamber and a liquid chamber, the piston type hydro pneumatic accumulator comprising a cylindrical barrel having a first internal surface and a second internal surface, and a second orifice; a floating piston with a plurality of sealing rings and a plurality of piston rings, having a guide shaft with provision to mount a plurality of shaft rings, an annular hollow ring around a rubbing surface of the floating piston, a hollow tube axial to the guide shaft, the hollow tube extending into the annular hollow ring; a gas end cover having a hollow re-charge path, an opening of the hollow re-charge path commences from an external surface of the gas end cover, another open end of the hollow re-charge path on an inner face of the gas end cover; a liquid end cover having an axial bore and a connection flange; a leakage detection construction having a first cylindrical channel, the first cylindrical channel reduces to a conical channel, the conical channel further reduces to a second cylindrical channel which is narrower, the conical channel having an inclined surface, a connection path which is hollow, the connection path commencing from an upper region of the first cylindrical channel; a floater device, made of a chemically neutral material with respect to a gas and a liquid with which the gas chamber and the liquid chamber of the hydro pneumatic accumulator respectively are filled; and a first pressure meter and a second pressure meter, the gas end cover and the liquid end cover hermetically disposed into the cylindrical barrel, the hollow re-charge path opening axially aligns with the second orifice of the cylindrical barrel, the first pressure meter disposed so as to measure a pressure in the first cylindrical channel and the second pressure meter disposed so as to measure the pressure in the second cylindrical channel, the hydro pneumatic accumulator connectable to a point of application from the connection flange of the liquid end cover.