Disclosed is an absorber system for absorbing pressure shocks and fluid volume shocks in a fluid system. In particular, the absorber system includes a housing with a joint for insertion within a fluid system, wherein the housing interior is in fluid communication with fluid in the fluid system. As such, when a pressure and/or fluid volume shock is developed within the fluid system, fluid is forced into the housing via the joint. A membrane is disposed within the housing in such a way that the fluid impacts the membrane which, in response, flexes to absorb and control the pressure and/or fluid volume shock within the fluid system. The absorber system, thus, controls pressure and/or fluid volume shock within a system and can prevent water hammer and other problems which can result from the development of pressure and/or fluid volume shock.

A flow dampener for dampening pulsation in a fluid flow includes a body shell, a flexible membrane, and two flow ports. The body shell has an interior surface and an elongate groove formed on the interior surface. The flexible membrane is sealed to the interior surface of the body shell and covers the elongate groove. In some embodiments, the flexible membrane is over-molded onto the body shell. The flexible membrane cooperates with the elongate groove to form an elongate flow path for the fluid flow. The flexible membrane has a thickness in a range from 0.5 mm to 6 mm. As the membrane is flexible, it vibrates as the fluid flows through the elongate flow path, absorbs kinetic energy in the fluid flow, and thereby dampens pulsation in the fluid flow.

A flow dampener for dampening pulsation in a fluid flow includes a body shell, a flexible membrane, and two flow ports. The body shell has an interior surface and an elongate groove formed on the interior surface. The flexible membrane is sealed to the interior surface of the body shell and covers the elongate groove. In some embodiments, the flexible membrane is over-molded onto the body shell. The flexible membrane cooperates with the elongate groove to form an elongate flow path for the fluid flow. The flexible membrane has a thickness in a range from 0.5 mm to 6 mm. As the membrane is flexible, it vibrates as the fluid flows through the elongate flow path, absorbs kinetic energy in the fluid flow, and thereby dampens pulsation in the fluid flow.

A valve assembly for a pressure change damper for a braking-force-regulated hydraulic vehicle brake system includes a valve housing, two valves, and a valve seat body. The valve housing includes an open side. The two valves are arranged in the valve housing. The valve seat body includes two valve seats for the two valves and is configured to close the open side of the valve housing.

Top repairable gas-charged pulsation dampener designs include one or both of a threaded cover for bladder replacement and a standardized bladder with a double convex, anti-extrusion bladder button. The threaded cover, which speeds up bladder replacement over bolt-on covers, preferably has a two-piece construction to reduce torsion on the bladder neck. The bladder design, which includes a double convex, anti-extrusion bladder button, facilitates use of the same bladder design in both top repairable and bottom repairable gas-charged pulsation dampeners.

Top repairable gas-charged pulsation dampener designs include one or both of a threaded cover for bladder replacement and a standardized bladder with a double convex, anti-extrusion bladder button. The threaded cover, which speeds up bladder replacement over bolt-on covers, preferably has a two-piece construction to reduce torsion on the bladder neck. The bladder design, which includes a double convex, anti-extrusion bladder button, facilitates use of the same bladder design in both top repairable and bottom repairable gas-charged pulsation dampeners.

A brake-system damping device includes a first chamber, to which hydraulic pressure is to be applied, a second chamber, in which there is a compressible medium, and a first separating element for separating the first chamber from the second chamber. The brake-system damping device includes a third chamber, in which there is a compressible medium, and a second separating element for separating the second chamber from the third chamber. The second chamber is connected, for medium conduction, to the third chamber by means of a passage formed in the second separating element. A closure element is to be moved with the first separating element, by means of which closure element the passage is to be closed as soon as the hydraulic pressure has reached predefined pressure value in the first chamber.

A brake-system damping device includes a first chamber, to which hydraulic pressure is to be applied, a second chamber, in which there is a compressible medium, and a first separating element for separating the first chamber from the second chamber. The brake-system damping device includes a third chamber, in which there is a compressible medium, and a second separating element for separating the second chamber from the third chamber. The second chamber is connected, for medium conduction, to the third chamber by means of a passage formed in the second separating element. A closure element is to be moved with the first separating element, by means of which closure element the passage is to be closed as soon as the hydraulic pressure has reached predefined pressure value in the first chamber.

A pulsation dampener includes: a housing having in internal cavity; an expandable bellows positioned within the internal cavity of the housing, the expandable bellows having a proximal end, a distal end, and an expandable portion between the proximal and distal ends; a bellows support member coupled to an interior side of the distal end of the expandable bellows and extending longitudinally away from the distal end of the expandable bellows toward the proximal end of the expandable bellows; and a cap fixed with respect to the housing and positioned to support the bellows support member when the expandable bellows is in a longitudinally compressed configuration.

A pulsation dampener includes: a housing having in internal cavity; an expandable bellows positioned within the internal cavity of the housing, the expandable bellows having a proximal end, a distal end, and an expandable portion between the proximal and distal ends; a bellows support member coupled to an interior side of the distal end of the expandable bellows and extending longitudinally away from the distal end of the expandable bellows toward the proximal end of the expandable bellows; and a cap fixed with respect to the housing and positioned to support the bellows support member when the expandable bellows is in a longitudinally compressed configuration.