Abstract: The proposal is for an improved expansion device for a drum brake having an integrated readjustment unit having a readjusting screw which can be locked therein by a spring-loaded latching unit which, for a reliable readjustment function with a reduced level of force, provides for the latching unit to allow a defined idle rotation of the readjusting screw, which is defined structurally by a first stop acting in a first direction of revolution and a second stop acting in the opposite direction of revolution.

Abstract: A piston tube assembly (17) for a spring brake actuator (1) includes a first tubular body (35) having a contoured inside surface profile (55) for non-rotationally guiding a running nut (21) of a mechanical release mechanism (19, 21), and an internal breather valve (41) mounted to the piston tube assembly (17) for allowing fluid transport into and out of the piston tube assembly and any volume in fluid communication therewith. The piston tube assembly (17) includes a second tubular body (37) that is of a different material than the first tubular body (35), which encloses the first tubular body (35) and mechanically supports the first tubular body (35), and the internal breather valve (41) is mounted to the first tubular body (35).

Abstract: A vibration-damping device includes a housing having a cylindrical mounting hole therein and a vibration-damping member provided in the mounting hole. The vibration-damping member includes an outer cylinder fitted into the mounting hole, an inner cylinder provided in the outer cylinder, and a rubber elastic body inserted between the outer cylinder and the inner cylinder. The rubber elastic body is formed with a bore penetrating in an axial direction thereof and a stopper protruding from a radially-inner wall surface thereof for the bore. The housing is formed with a receiving part which faces the stopper, in a radial direction of the mounting hole, across a gap.

Abstract: A shock absorber assembly with a coil spring and a shock absorber. The shock absorber includes a cylinder; a piston rod; a cylinder piston connected to the piston rod; a reservoir fluidly connected to the cylinder, the reservoir and the cylinder defining a fluid chamber for receiving a hydraulic fluid; a reservoir base valve separating the fluid chamber into a first portion and a second portion, the reservoir base valve defining passages fluidly connecting the first and second portions; a bypass channel fluidly connecting the first portion to the second portion; a bypass valve configured to selectively control fluid flow through the bypass channel; and a check valve disposed in the bypass passage and being configured to: permit fluid flow through the bypass channel from the first portion to the second portion, and impede fluid flow through the bypass channel from the second portion to the first portion.

Abstract: A heavy vehicle drum brake shoe guide and an assembly comprising the brake shoe guide are described. In one aspect, there is provided a brake shoe guide for attachment to a drum brake shoe by a pin fastener, to prevent brake shoe misalignment. There is also provided a brake shoe guide assembly including at least a brake shoe guide and a pin fastener for securing the brake shoe guide to a drum brake shoe. The brake shoe guide described herein is simple to fit to a standard, off the shelf brake shoe, and can be retrofitable to a brake shoe and/or brake assembly. Moreover, the brake shoe guide assembly described herein can retain the cam follower roller to the brake shoe, and act as an axle for the cam follower roller, eliminating the need for a separate retainer clip. Further still, the guide and the assembly of which it forms a part can be used with drums of various sizes.

Abstract: The invention relates to an assembly for supporting a motor (1), which comprises two coaxial rings, these being an inner ring (3) able to receive one or more elements of the said motor and an outer ring (4) able to be fixed to a housing forming a structural element (2). The assembly comprises means for limiting the tilting of the inner ring (3) with respect to the outer ring (4), these means including an element (34) which projects from a first of the two rings to become housed in a housing (42) formed in the second of the two rings, and means (7, 22) for reducing the excursion of the element (34) inside the said housing.

Abstract: An aspect of the present invention is directed to a vibration damping material for use in a mount part for supporting a motor, the vibration damping material including: a gel of a dehydration condensation reaction product of silicone oil and boric acid, wherein the boric acid is in an amount of 25 to 75 moles based on 100 moles of the total amount of the silicone oil and the boric acid.

Abstract: A device for absorbing kinetic energy of a vehicle or any other moving body includes at least one bundle of straps formed by at least one strap having at least one first strand and at least one second strand secured by a connection means capable of being progressively destroyed by a tensile force intended to be applied on the first strand of the strap. The device also includes at least one anchoring means suitable for connecting the kinetic energy absorption device to a structure on which is intended to be installed. The anchoring means is arranged downstream of the bundle of straps with respect to a deployment direction of the strap under the tensile force intended to be applied on the first strand of the strap.

Abstract: The present invention relates to a hydraulic damper comprising a tube and a piston assembly provided with rebound valve assemblies and compression valve assemblies, wherein each valve assembly comprises a deflectable-disc valve and a blow-off valve. The piston assembly comprises two sleeve-shaped members each provided with a plurality of blow-off valve flow passages, a plurality of deflectable-disc valve flow passages, and a central opening, wherein the piston rod passes through said central openings to secure the piston assembly, a plurality of deflectable disc(s) of the deflectable-disc valve cover(s) said deflectable-disc valve flow passages , wherein a plurality of disc(s) of the blow-off valve adjoin(s) said blow-off valve flow passages, wherein the piston assembly further comprises two spring seats abutting said disc(s) of the blow-off valve, and at least one spring disposed within said internal chamber that biases said spring seats towards said number of discBP-S20010US(s).

Abstract: An anti-vibration device including an outer cylinder 10; a shaft member 20 that is provided in the outer cylinder 10; and an elastic member 40 that links the outer cylinder 10 and the shaft member 20, in which the shaft member 20 has an inner cylinder and four stopper portions 30a to 30d that protrudes from a circumferential surface of the inner cylinder toward the outer cylinder 10 and that are mutually provided at intervals in a circumferential direction, and in which the elastic member 40 links the outer cylinder 10 and the shaft member 20 at a position between stopper portions that are adjacent to each other in the circumferential direction.

Abstract: In some examples, a cooling system includes a brake assembly defining a plurality of cooling channels. The brake assembly is configured to be positioned within a wheel cavity of a wheel. The cooling system includes a distributor configured to receive a flow of cooling fluid and supply the cooling fluid to the plurality of cooling channels. One or more cooling channels are configured to receive the cooling fluid and discharge the cooling fluid into the wheel cavity of the wheel. The cooling system may include a fan configured to provide the cooling fluid to the distributor.

Abstract: A magnetorheological fluid with balanced viscosity and sedimentation properties includes: a magnetic material; a medium to allow the magnetic material to be dispersed therein; a dispersant to disperse the magnetic material within the medium while forming a magnetic material holding structure to hold the magnetic material; and a reinforcing agent to reinforce the magnetic material holding structure. An amount of the magnetic material is 25 wt % to 75 wt % relative to a sum of the medium and the magnetic material. An amount of the medium is 25 wt % to 75 wt % relative to the sum of the medium and the magnetic material. An amount of the dispersant is 0.5 wt % to 6 wt % relative to the sum of the medium and the magnetic material. An amount of the reinforcing agent is 5 wt % to 300 wt % relative to a weight of the dispersant.

Abstract: An active control anti-yaw damper (100) is provided. When a piston (2) of the active control anti-yaw damper (100) reciprocates inside a hydraulic cylinder (1), an interior of the hydraulic cylinder (1) is divided into two cylinder blocks (PA, PB) which communicate with an oil reservoir through two main oil lines respectively to form a primary loop between the hydraulic cylinder (1) and the oil reservoir; a reversing valve (PV3) is installed between the two main oil lines and the oil reservoir and is configured to change a flow direction of the primary loop when the active control anti-yaw damper (100) is in an active mode and adjust a displacement of the piston (2) within the hydraulic cylinder (1).

Abstract: A shock strut is provided that includes a first energy absorption stage or load limiter and a second energy absorption stage or load limiter. The second energy absorption stage or load limiter can include one or more disc springs. The shock strut can be employed on both fixed and retractable landing gear alike, while providing design adjustability for obtaining load-deflection curves that accommodate a range of descent or impact velocities.

Abstract: Earth vibrators, such as servo-hydraulic vibrators, are improved to produce more output force and less distortion at very low frequencies by capturing mass from the vehicles which carry them, adding sufficient inertial mass to the reaction mass without adding much vehicle and equipment weight while also avoiding increases to the servo-hydraulic vibrator's stroke length. In particular, improvements to servo-hydraulic vibrators, at low frequencies, will couple some mass from the carrier vehicle frame and its load using non-rigid coupling only when additional mass is needed using dampers connected between the reaction mass and the carrier vehicle's frame, with the added damping being applied by a control system at very low frequencies of output where the vibrator is otherwise unable to produce force equal to its hold-weight.

Abstract: A damping element (1) has a multi-start thread on its circumferential surface (4). The damping element (1) can engage in a recess in a first body (12). To this end, the damping element (1) has a thread portion on its circumferential surface and the recess (13) in the first body (12) has in its inner lateral surface at least one mating thread portion which corresponds to the thread portion of the damping element (1). Through engagement of the thread in the mating thread, the damping element can be screwed together with the first body (12). By means of the thread, the damping element (1) can be fastened to the first body (12) and separated therefrom again with little effort. A fastening element (23) can fasten the damping element (1) to a second body in order to fasten the first (12) and the second bodies to one another in a vibration-damped manner.

Abstract: An air damper is provided. A piston member includes a stopper portion configured to come into contact with a cap in a state that a rod is pulled out to a maximum extent, and a deflection regulating portion configured to be positioned inside the engagement claw in the state to regulate an inward deflection of the engagement claw. An attachment portion rotatably attached to an attachment target portion is provided at an end portion of the rod. A contact surface is formed on the inner side of the engagement claw when viewed in an axial direction of the cylinder, the contact surface being capable of coming into contact with the deflection regulating portion when the rod swings in a direction of a rotation axis of the attachment portion with respect to the attachment target portion or in a direction intersecting the rotation axis.

Abstract: A self-compensating tube assembly is disclosed for use in a doctor blade holder. The self-compensating tube assembly includes a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and chatter responsive for providing any of monitoring means of blade chatter through pressure, damping of blade chatter, and minimizing blade chatter.

Abstract: A dual-acting single-spring twin-tube shock absorber assembly is provided. The assembly includes at least one twin-tube shock absorber component; at least one piston rod component coaxially coupled with said twin-tube shock absorber component and configured to telescope in and out of out of the same with compression and extension stroke respectively; one helical compression spring disposed outside the outer wall of said twin-tube shock absorber component; at least one spring guide component and at least one spring actuator component which is adapted to perform the dual action of achieving compression and extension force and a neutral position at the center without preload.

Abstract: The present disclosure discloses a digital hydraulic assisted braking system with a high dynamic response and a control method thereof. The system includes a two-position two-way digital switch valve A, a controller, an electromagnetic two-position two-way proportional reversing valve, a two-position two-way digital switch valve B, a displacement detection system, and a pressure detection system. When a vehicle starts, a control system of the present disclosure maintains a preload state and responds to a braking at any time. During an emergency braking, the braking system is open. When the vehicle is shut down, the braking system is closed. Compared with an existing braking method, by implementing the braking method of the present disclosure, a braking response time is greatly shortened, a dynamic performance of a braking response period is improved, and a safety of vehicle braking is further guaranteed.