摘要:
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.
摘要:
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.
摘要:
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).
摘要:
A hydraulic accumulator (14) is equipped with a novel shut-off valve. The shut off-valve includes a valve body (21) having a cylindrical hollow with a valve seat (37) surrounding one end. The main piston (24) including a piston head has a central opening (30) and is slidably mounted within the cylindrical hollow of the valve body. A poppet valve (22) has a valve head which mates with the valve seat and a valve stem which extends through the central opening of the piston to guide axial movement of the poppet valve relative to the piston. A spring (23) is mounted between the valve head and the main piston head for urging the valve head away from the piston head. A control valve (27) moves the piston relative to the valve body between open and closed positions responsive to signals from a computer (72) which signals valve closing upon determination that flow rate through the valve exceeds a maximum period. The spring between the poppet valve head and the piston head exerts a force approximately equal to that of a pressure drop across the poppet valve at a predetermined maximum flow rate.
摘要:
Eine Fülleinrichtung für einen mit einem Gewindeverschluss versehenen kugelförmigen Gasbehälter (1) einer hydro-pneumatischen Federeinrichtung hat einen Austauschverschluss (2) mit gleichem Aussengewinde (3) wie der Gewindeverschluss, einen zylindrischen Teil (4) und eine Bohrung (5) mit Innengewinde sowie einen zylindrischen Gewindestift (9) mit einem an einem Ende angeordneten, in dieses Innengewinde passenden ersten Aussengewinde (8) und mit einem am anderen Ende angeordneten zweiten Aussengewinde (10), dessen Gewindesteigung der des Austauschverschlusses (2) entspricht. Die Fülleinrichtung weistfemer ein Spannelement (20) mit einem Flansch (22) und einem abdichtenden, das zweite Aussengewinde (10) des Gewindestifte (9) umgebende Teil (23) auf, das von einer mit einer Füllöffnung (28) versehenen zylindrischen Füllhülse (25) abdichtend passend umschlossen ist, die abdichtend zwischen dem Flansch (22) und der Wandung des Gasbehälters (1) eingespannt werden kann.
摘要:
The invention relates to a hydraulic accumulator, especially a bladder accumulator, comprising an accumulator housing (10), a separation element disposed therein that separates within the accumulator housing a gas chamber (16) adjoining a inlet (14) on the gas side from a fluid chamber (18) adjoining an inlet (20) on the fluid side. Said inlet on the fluid side has a fluid connecting neck (22) which comprises a valve support (40) disposed in said neck and having fluid openings (42), and a disk-shaped valve body (32) that tapers towards the valve shaft (46) on its side facing the valve support (40). Said valve shaft can be pretensioned via a force accumulator (62) into the open position in which it releases the fluid opening, and can be displaced into its closed position by a displacement of the separation element (12), and projects into the fluid chamber (18) in the open position. The valve body (32) is an integral, especially one-piece component of the valve support (40) that is guided along its outer periphery (56) within the connecting neck (22) so as to be displaceable therein, thereby creating a hydraulic accumulator that is comparatively simple and inexpensive in production.
摘要:
Disclosed is an accumulator comprising a cylindrical shell including a cylindrical portion, a partitioning member for partitioning the interior of the shell into a hydraulic chamber and a gas chamber, and a port including a hydraulic fluid flow path for communicating the exterior of the shell and the hydraulic chamber. The variation of the pressure of a hydraulic fluid flowing into the hydraulic chamber is accommodated by expansion and compression of a gas in the gas chamber according to expansion and contraction of the partitioning member. The port is approximately airtightly inserted into the cylindrical portion of the shell, and is welded to an outer circumference of the cylindrical portion by means of welding.