Abstract: A brake cable for a dual mode type drum brake functioning as a leading-trailing type during the service brake and as a duo-servo type during the parking brake, may be easily arranged at a lower side of axle. The first and second brake levers (118), (119) of a parking brake actuator (117) have proximal portions (118a), (119a) pivotally supported between two ends of a second brake shoe (3) and at a lower end thereof; free ends (118b), (119b) extend in opposed direction from the proximal portions (118a), (119a) in parallel to face and functionally engage each other; a strut (120) extends between the second brake lever (119) and the pivot lever (16); and a brake cable (23) pulled to activate the free end (118b) is arranged adjacent to the anchor (7).

Abstract: A brake fluid pressure control device controls brake fluid pressures through control of fluid pressure control valves operated in accordance with control signals from, for example, a computer. Signal lines for supplying control signals to control circuits controlling coils of linear valve devices for some wheels (e.g., front-left and rear-right wheels) are connected to a brake ECU by a connector, and signal lines for supplying control signals to the control circuits controlling coils of linear valve devices for other wheels (e.g., front-right and rear-left wheels) are connected to the brake ECU by a different connector. Thus, even if one of the connectors starts operating abnormally, it is possible to supply control signals via the signal lines connected by the other connector and control linear valve devices for some of the wheels (e.g., a pair of diagonally located wheels).

Abstract: A fluid-elastomeric damper assembly operable for damping relative motion between a first structure and a second structure including a housing structure grounded to the first structure and a plurality of elastomer seals coupled to the housing structure, the housing structure and the plurality of elastomer seals defining a fluid-elastomeric chamber operable for containing a fluid. The fluid-elastomeric damper assembly also including one or more piston structures disposed within the housing structure and the fluid-elastomeric chamber, the one or more piston structures grounded to the first structure and driven by the second structure, and the one or more piston structures each including a first substantially fluid-filled chamber and a second substantially-fluid-filled chamber in communication via an orifice, the first substantially fluid-filled chamber and the second substantially fluid-filled chamber also in communication with the fluid-elastomeric chamber.

Abstract: The cam device of the invention includes individually rotatable first and second cam followers performing predetermined movement along a groove defined by first and second sidewalls. The cam followers are positioned so that their axes extend in the same direction. Movement of the first cam follower is restricted by at least part of the first sidewall, and movement of the second cam follower is restricted by at least part of the second sidewall.

Abstract: A band braking device has an annular brake band having a frictional surface formed on the inner peripheral side thereof and a bracket fixed to an end portion thereof. Concave portions are formed on one of the bracket and the brake band, and convex portions are formed on the other to be engaged with the concave portions.

Abstract: A control device for an electric vehicle stopping at a slope road which reduces a power consumption of the electric motor when the vehicle is stopping at the slope road with the generation of a drive torque. The device judges the stopping state of the vehicle at the slope road when a condition that a throttle opening degree is not zero, that the drive torque is not zero, and that a vehicle speed is zero continues for a predetermined time, applies a hydraulic pressure P relative to wheel cylinder, and decreases the drive torque outputting to the motor to be zero. The device judges a release of the stopping state at the slope road when a condition that a throttle opening degree becomes greater than a throttle opening degree under the vehicle stopping state at the slope road, recovers the drive torque, and gradually releases an application of the hydraulic pressure to the wheel cylinder.

Abstract: A spring arrangement includes two coaxial spring components (4a, 4b) which are mounted so as to oppose each other. Each of the spring components includes a rolling-lobe flexible member (6a, 6b) and a roll-off piston (8a, 8b) corresponding thereto. The two rolling-lobe flexible members (6a, 6b) define a common double rolling-lobe flexible member (6) and the two spring components (4a, 4b) have a common outer jacket (10). A simple assembly and a reliable fixation of the double rolling-lobe flexible member (6) on the outer jacket (10) is provided. For this purpose, the double rolling-lobe flexible member (6) has a clamp ring (18 or 26) mounted internally. The outer jacket (10) includes two parts (10a and 10b) having respective ends. The double rolling-lobe flexible member (6) is clamped between these ends with the aid of the clamp ring (18 and 26). The air spring arrangement is especially applicable in the forward wheel fork (16) of a two-wheel vehicle.

Abstract: An axially asymmetrical vibration-reducing torque tube radially surrounds an axle and axially spans brake disks with intervening ones of the brake disks angularly fixed to a torque tube. The torque tube is a hollow generally annular member having an axis, a radially outwardly flared portion near one end to facilitate axially fixing end one of the disks, a flange near the other end thereof adapted to fix the torque tube to the stationary member, and a radially inwardly extending annular support flange intermediate the one and other end for augmenting the support of the tube on the stationary member. Cut-outs in support flange impart dynamic asymmetry to the torque tube and displace its elastic center off-axis of the brake discs, reducing the brake vibration amplitudes. A brake actuating mechanism is operable upon command to axially force the pressure plate toward the end plate compressing the brake disks therebetween.

Abstract: An actuating unit for an electromechanically actuated disc brake for automotive vehicles which is composed of a drive unit or an electric motor, an actuating element forming one of two friction linings into engagement with a brake disc, and a reducing gear. A freewheel mechanism that interacts with the electric motor has the function of a parking brake. In order to ensure a high level of reliability in operation of the parking brake and to render it resistant to external influences, in particular, oscillations or vibrations, the present invention suggest that the freewheel mechanism be configured in such a way that its clamping effect is produced by a form-locking torque transmission and that, in its actuated state, it prevents a rotational movement of a bearing in which the rotor of the electric motor is mounted.

Abstract: An air spring includes a flexible member, which encloses an air volume, and two connecting parts. Each of the connecting parts has a clamp seat on which an end of the flexible member is attached with the aid of a clamp ring assigned to the clamp seat. The surface of at least one clamp seat is at least approximately convex and the total inner side of the clamp ring, which is assigned to the clamp seat, is configured to be at least approximately concave.

Abstract: A cushion assembly includes a lower end wall which is at least partially enclosed by a tubular cylindrical outer wall. An upper end wall is also partially enclosed by the outer wall. A tubular cylindrical inner wall extends between recesses in the lower end wall and the upper end wall. A piston is disposed within the inner wall and is movable along the inner wall toward the upper end wall under the influence of gas pressure. The piston is movable along the inner wall toward the lower end wall of the influence of force applied against the piston during operation of a press. A passage is formed between an end portion of the inner wall and the lower end wall to conduct a flow of lubrication liquid and gas to lubricate the piston.

Abstract: In a rotary pump in which axial end surfaces of outer and inner rotors is in pressurized direct contact with an axial end surface of a second side plate to form a mechanical sealing, both of the axial end surfaces of the outer and inner rotors and the axial end surface of the second side plate are provided with radial line grinding stripes. Teeth gap portions formed by the outer and inner rotors in mesh communicate with an outer circumference gap between the circumference of the outer rotor and inner circumference of a center plate and also with a shaft hole of the inner rotor through extremely slight gaps formed by concave and convex of the radial line grinding stripes so that contact surface between the outer and inner rotors and the second side plate is well lubricated to reduce torque loss.

Abstract: A cooling apparatus (27) for a locomotive dynamic brake resistor grid stack (22) including a flow directing diffuser (24). The flow directing diffuser includes at least one turning vane member (26) disposed at an angle to the flow stream axis for directing a portion of the cooling air from a high velocity area of the air stream into a lower velocity area of the air stream. The flow directing diffuser may include an annular ring-shaped turning vane member (28) for directing high velocity air into a center low velocity area. The flow directing diffuser may further include a V-shaped turning vane member (32) associated with each corner (34) of the surrounding duct (36) for directing high velocity air into each corner low velocity area. Air is supplied to the duct 36 housing the flow directing diffuser by a mixed flow fan (54).

Abstract: A control system which allows electro-pneumatic control of an equalizing reservoir with the capacity to create penalty applications in a purely pneumatic manner. A controller for the equalizing reservoir includes an electro-pneumatic source of pressure or atmosphere responsive to an electrical equalizing pressure control signal and a pilot valve selectively connecting the electro-pneumatic source or atmosphere to the equalizing reservoir in response to pressure in a pilot port of the first pilot valve. A magnetic valve is provided having a first input connected to a second source of pressure, a second input connected to atmosphere and an output connected to the pilot port of the first pilot valve. At least one penalty valve is connected to the pilot input of the first pilot valve and is responsive to a penalty signal to connect the pilot input to atmosphere. The pilot valve and the penalty valve pneumatically produce a brake application regardless of the state of the magnetic valve or its controller.

Abstract: A master cylinder for electro-hydraulic braking systems having a body of longitudinal axis pierced with a bore to receive a piston mounted to slide therein in a sealed fashion while axially dividing the bore into a supply chamber sealedly connected to a brake fluid reservoir and a working chamber. The piston is operated by an actuating rod connected to a brake pedal and connected to a cartridge to simulate a reaction of a braking circuit to the pedal. The working chamber in normal operation is in communication with the inside of the cartridge and in degraded operation in communication with at least one brake located at a wheel. The cartridge includes a piston that is subjected via of a first face to the pressurized brake fluid supplied by the working chamber and is subjected via of a second face to a variable-stiffness elastic of a elastic member. The elastic member comprises at least one helical spring and a spacer that is arranged between at least two turns of the spring.

Abstract: A piston-cylinder assembly includes a cylinder, in which a piston rod with a piston is guided axially by a piston rod guide. A distance detection system is used to determine the position of the piston in the cylinder. The distance detection system includes a sensor and a transmitter. The sensor is mounted on the piston or on the bottom of the cylinder. Upon axial displacement of the piston, the transmitter travels a distance different from that traveled by the piston, the difference between the two distances being used to determine the position of the piston.

Abstract: A brake effort monitor for railcar braking systems includes means connected to receive a brake effort request signal and a vehicle speed signal for generating an energy requested signal. Another device is connected to receive a brake effort actual signal and a vehicle speed signal for generating an actual energy signal. There is a mechanism connected to receive the energy requested signal and add it to one of a previous energy requested signal and a predetermined value for generating an energy requested sum signal. A device is connected to receive the actual energy signal and add it to one of a previous actual energy signal and a predetermined value for generating an actual energy sum signal.

Abstract: A suspension stop device, for a motor vehicle driving wheels, including a filtering block, having an upper housing fixed relative to the vehicle body and co-operating with a lower housing mobile in rotation about a shock absorber rod and supporting a suspension spring, and a ball bearing. The upper and lower housings are made of thermoplastic material and have opposite surfaces hollowed out in a circle, about the rotation axis of the shock absorber rod, to receive a raceway for the ball bearing. The upper housing further incorporates an impact stop molded around the leading stop of the shock absorbing device, and the thermoplastic structure of the upper housing is reinforced by a ring made of overmolded elastomer.

Abstract: A gas spring comprises a housing, in which a piston that is mounted on a piston rod is disposed for displacement, dividing the interior of the housing into two partial volumes filled with fluid. A valve is provided, by means of which to interconnect the partial volumes. The valve is designed such that, when a force that acts in the piston-rod push-in direction exceeds a given threshold, a valve pin, which serves to open and close the valve, is displaceable from a closing position against a spring unit into a position of opening by overload.

Abstract: In a hydraulic vehicle braking systems operable via hydraulic external energy from a pump or, in the event the pump malfunctions, via hydraulic energy made available using a master brake cylinder via muscle-powered energy, provision is made for safe braking via muscle-powered energy such that at least one cylinder-piston configuration isolates at least two wheel brakes from the hydraulic pressure medium that is able to be pumped by the pump. The hydraulic vehicle-braking system incorporates wheel brakes of one axle that is isolated from a hydraulic pump in terms of pressure medium by a cylinder-piston configuration, which wheel brakes are supplied with pressure medium by one master cylinder chamber of a master brake cylinder. The other master brake cylinder chamber is allocated to the two other wheel brakes of the other vehicle axle, so that given bubble-free pressure medium downstream from the pump, the wheel brakes of both vehicle axles make a contribution to vehicle deceleration.