Abstract:
A locking ring assembly is provided for releasably retaining a tubular valve housing in the liquid port of a bladder-type pressure accumulator without any possibility of the valve housing being blown out from the port when a normal high pressures are attained within the accumulator shell. The locking ring assembly seats at an angle against an identical angle on the inside of the opening at the mouth of the accumulator shell so that when excessively high internal pressures are reached within the shell the ring will force the mouth of the shell to expand diametrically forcing the mouth open thus extruding an O-ring seal which releases the pressure. Thus the accumulator shell cannot burst.
Abstract:
This invention relates to the art of pressure vessels and more particularly to a valve assembly for use in a pressure vessel of the type having a rigid container with a deformable bladder therein, dividing the container into two variable volume chambers, one adapted to receive gas under pressure and the other to receive liquid under pressure.The valve assembly which is screwed into a port in communication with the gas chamber includes a slidably mounted stem having a resilient valve member at one end normally urged to seat on the beveled inner end of an axial bore in the valve assembly in a first seating position of the valve member, and urged further into said beveled inner end when the bladder is charged with gas under pressure in a second seating position of the valve member. The inward movement of the valve member is limited by a stop carried by the stem. When the liquid chamber is charged, if the bladder should abut against the resilient valve member, no extrusion of the bladder would occur.
Abstract:
A DOUBLE RATE FLOW CONTROLLER INCLUDING A MEANS FOR PERMITTING FLUID FLOW AT A FIRST HIGH FLOW RATE, A MEANS FOR REDUCING THE FIRST FLOW RATE TO A SECOND LOWER FLOW RATE AND A MEANS FOR REGULATING THE VOLUME OF WATER PASSING THROUGH THE FLOW CONTROLLER DURING THE HIGH FLOW CONDITION BEFORE THE HIGH FLOW RATE IS TERMINATED AND THE LOW FLOW RATE BEGINS.
Abstract:
Cet accumulateur de pression pour véhicule comprend une enceinte (22) en matière thermoplastique, un enroulement filamentaire (24) autour de l'enceinte, une vessie et un insert (20, 30). L'insert est constitué majoritairement par une première matière et au moins en partie par une seconde matière qui est une matière thermoplastique apte à être soudée avec la matière constituant l'enceinte. De plus, l'insert est monobloc et est conformé de manière à ne pouvoir être séparé après soudage de l'enceinte que par destruction de cette dernière ou de l'insert, et il comprend en outre des moyens aptes à assurer l'étanchéité entre la première matière et la seconde matière.
Abstract:
Dans le procédé de fabrication d'un accumulateur de pression pour véhicule, à partir d'une paraison en matière thermoplastique, on forme une enceinte autour d'une chambre en appliquant au moins une partie, au moins partiellement fondue, de la paraison sur au moins une partie de la chambre de façon à fixer la paraison à la chambre.
Abstract:
This vehicle pressure accumulator comprises a vessel (22) made of thermoplastic, a filament winding (24) around the vessel, a bladder and an insert (20, 30). The insert is made predominantly of a first material and at least partially of a second material which is a thermoplastic that can be welded to the material of which the vessel is made. In addition, the insert is of one piece and shaped in such a way that after the vessel has been welded it can be separated only by destroying the vessel or the insert, and it further comprises means to ensure sealing between the first material and the second material.
Abstract:
The invention relates to a method for manufacturing a vehicle pressure accumulator, in which a thermoplastic parison is used to form an enclosure around a chamber by applying at least one portion, at least partially molten, of the parison onto at least one portion of the chamber, such as to attach the parison to the chamber.
Abstract:
Valve and charging assembly to charge pressure reservoirs advantageously for use on motor cars, the valve (10) being capable of being screwed to a threaded attachment (14) of the reservoir (13) and comprising an outer axial, internally threaded chamber (15) and a ball (20) capable of a controlled axial movement and located within the reservoir (13), the threaded chamber (15) being connected to the working seating of the ball (20) by an axial bore (18) cooperating with a needle (27) which actuates the charging assembly (24) during introduction of gas into the reservoir (13).