Abstract: A spring brake chamber includes a first case, a second case, and a coupling case. The first case includes an open end, a closed end, and an open end portion. The open end portion of the first case includes a tapered outer positioning portion having a diameter that increases toward the open end. The coupling case couples the first case and the second case. The coupling case includes an open end closer to the first case and an open end portion. The open end portion of the coupling case includes a tapered inner positioning portion having a diameter that decreases toward the open end. The first case is positioned relative to the coupling case by attaching the outer positioning portion to an outer side of the inner positioning portion.
Abstract: A rotational speed control device includes a housing containing a viscous fluid and a shaft disposed in the housing and rotatable relative to the housing. A rotor may be movable axially on the shaft depending on the rotating speed of the shaft. The rotor is biased in a low torque direction. A braking torque between the rotor and the housing and/or between the rotor and a drive control ring is varied according to an axial position of the rotor on the shaft. The device may incorporate bypass channels to control a circulating pressure of the viscous fluid.
Abstract: A suspension system for an engine includes an engine mount and an electronic control unit. The engine mount has spring characteristics that are switchable between first spring characteristics and second spring characteristics. The electronic control unit is configured to switch the spring characteristics of the engine mount to the first spring characteristics when the rotational speed of the engine is lower than a predetermined rotational speed, and torque of the engine is equal to or larger than a predetermined torque. The electronic control unit is configured to switch the spring characteristics of the engine mount to the second spring characteristics when the rotational speed of the engine is lower than the predetermined rotational speed, and the torque of the engine is smaller than the predetermined torque.
Abstract: A cooling fan vane assembly for a resistor grid may include a duct having a substantially round inlet opening, a substantially rectangular outlet opening, and a side wall extending between the inlet opening and the outlet opening shaped to transition from a substantially round shape to a substantially rectangular shape; the inlet opening including a plurality of radially extending turning vanes; and a frustoconical vane positioned in the duct adjacent a downstream side of the plurality of radially extending vanes.
Abstract: A semi-active mount structure may include a nozzle plate mounted between an insulator and a diaphragm, to divide an interior of a main case into an upper fluid chamber and a lower fluid chamber, the nozzle plate being formed with first and second fluid passages, a plunger mounted in a housing coupled to a lower surface of the diaphragm such that the plunger is vertically movable, the plunger opening or closing the second fluid passage in accordance with application of electric power to a coil, a valve spring disposed between the plunger and the housing, to apply elastic force to the plunger, the valve spring dividing a space defined between the diaphragm and the coil into an upper space and a lower space, and a valve mounted at a vent hole drilled at one side of the housing for air to be introduced into or discharged from the lower space.
Abstract: The invention relates to a functional unit (100) for a brake release device, comprising a recess (111) for receiving a pump assembly (113), an actuating cylinder support (119) for receiving an actuating cylinder arrangement (400), wherein the functional unit (100) is formed as an integral functional block where the actuating cylinder support (119), the recess (111) and a plurality of channels (150, 160, 170, 171, 172, 180, 190) for a hydraulic medium are developed, said channels forming a line arrangement. The invention also relates to a brake release device having such a functional unit.
Abstract: The disclosed embodiments relate to a housing device for a magnet body for an electromagnetic rail brake for a rail vehicle. The housing device has a first cable feed-through opening for the feeding through of a first electrical connection cable into the magnet body. The housing device is characterized in that a first axial-extent axis of the first cable feed-through opening is arranged at an acute inclination angle to a main surface of the housing device adjacent to the first cable feed-through opening, wherein the first cable feed-through opening is arranged in the center of the rail brake within a tolerance range.
March 16, 2015
Date of Patent:
September 11, 2018
KNORR-BREMSE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
Marcin Widlinski, Richard Rathammer, Volker Joergl
Abstract: A system and method for increasing brake line pressure after brake booster vacuum has been exhausted is presented. In one example, brake line pressure is increased at a same rate after brake booster vacuum is exhausted as before brake booster vacuum is exhausted so that a driver experiences a continuous braking force.
April 12, 2013
Date of Patent:
September 4, 2018
Ford Global Technologies, LLC
Ralph Wayne Cunningham, Ross Dykstra Pursifull
Abstract: A vehicle brake system includes a collision determination unit configured to determine whether collision of the vehicle occurs; a second braking control unit configured to cause at least one of ESB and VSA systems to perform emergency braking control of the vehicle irrespective of a press-down operation of a brake pedal by a driver when collision of the vehicle occurs; and a braking force determination unit configured to determine whether a demanded braking force by emergency braking control exceeds a predetermined braking force threshold. In a case where the collision of the vehicle occurs, and where the demanded braking force exceeds the braking force threshold, the second braking control unit retreats an operation position of the brake pedal in a press-down direction.
Abstract: A cylinder device includes a cylinder, an outer tube, a piston, a piston rod, a rod guide, a first common passage through which working oil that is supplied/discharged to/from a rod-side chamber passes, a pipe that forms a part of the first common passage and is provided in a reservoir tank, a pipe holder that is provided between the pipe and the rod guide and holds a first end of the pipe, and a plug that is provided on a side of the pipe holder opposite from the pipe and has a throttle passage allowing the first common passage to communicate with the reservoir tank.
Abstract: An object of the present invention is to provide a liquid-charged antivibration device for reducing amplitude dependency. Provided is a liquid-charged antivibration device including: a liquid chamber in which operating liquid is charged; and a partitioning member which partitions the liquid chamber into a main liquid chamber and a sub liquid chamber.
Abstract: A thermoplastic endless belt has a smooth outer surface substantially free of discontinuities and an inner surface with a plurality of teeth at a given belt pitch. The teeth are adapted to engage a pulley with circumferentially spaced sheaves at a pulley pitch greater than the belt pitch. The belt is slightly stretchable so that the pulley can drive the endless belt when engaging the teeth within a range of load on the belt. Means are provided to minimize friction between the belt and the drive pulley. Also, a position limiter ensures that the driven tooth stays engaged optimally with the drive sheave.
Abstract: A partitioning member (16) of a vibration-damping device (10) is provided with a communication chamber (30), a first communication hole (31) and a second communication hole (32). The first communication hole (31) and the second communication hole (32) are arranged to be offset from each other in the axial direction (O). The first communication hole (31) is formed by the inside of a first protruding tube (31a) that protrudes into the communication chamber (30) from the first wall surface (30a). The second communication hole (32) is formed by the inside of the second protruding tube (32a) that protrudes into the communication chamber (30) from the second wall surface (30b). By including the configuration as described above, simplification of structure can be achieved.
Abstract: A hydraulic power unit for a braking system of a vehicle, including a first sub-brake circuit or brake circuit and a second sub-brake circuit or brake circuit, a first supply line branching into a first line section having a first circuit separating valve situated therein, and a second line section having a first electrically controllable reservoir separating valve and/or first check valve situated therein, and a second supply line branching into a third line section having a second circuit separating valve situated therein and a fourth line section having a second electrically controllable reservoir separating valve and/or second check valve situated therein.
Abstract: An apparatus for retarding rotation of a nozzle includes a hollow housing, a rotary shaft within the housing, a rotatable rotor on the rotary shaft free to move axially along the shaft, and a cam assembly coupling the rotor and shaft together in the housing such that rotor rotation on the shaft causes the cam assembly to displace the rotor axially on the shaft in a first direction. A set of springs on the shaft biases the rotor in a second direction opposite the first direction on the shaft. Finally, a viscous fluid disposed between the rotor and the housing generates a drag on rotor rotation with the shaft. Relative rotation of the rotor with respect to the shaft in conjunction with a variable gap between the rotor and housing are used to slow and thus control rotary nozzle speed.
Abstract: A flow of hydraulic oil induced by sliding movement of a piston in a cylinder is controlled by a damping force generating mechanism to generate a damping force. A flow of hydraulic oil from a casing of the damping force generating mechanism toward a reservoir is regulated by a passage groove formed on the bottom of the casing so as to be directed downward in the reservoir. Thus, the hydraulic oil is efficiently supplied to a base valve from the damping force generating mechanism even when the hydraulic oil is sucked from the reservoir into a cylinder lower chamber through a passage in the base valve during the extension stroke of a piston rod. Therefore, it is possible to suppress a sharp reduction in pressure in the lower part of the reservoir and hence possible to suppress the occurrence of aeration and to obtain stable damping force characteristics.
Abstract: An impact absorbing structure includes a first inter-engaging main planar part and a second inter-engaging main planar part. The first main planar part includes a plurality of cylindrical projections engageable in corresponding flexible hollow members such that as the cylindrical projections enter and subsequently deform the hollow members, impact absorption takes place.
Abstract: In one or more embodiments, a damper hub assembly includes a hub with a through-aperture defined by an aperture wall and to receive therein a portion of a crankshaft, the aperture wall including face and back surfaces and a wall surface positioned there-between, and an insert contacting the face and back surfaces and the wall surface.
Abstract: A hydraulic device includes a tubular housing, inside of which a rod is jointly attached to a piston separating upper and lower areas which hold hydraulic fluid so that, as the piston and rod move, the piston and the rod move together relatively and axially inside the tubular housing, displacing the hydraulic fluid inside the tubular housing, flowing from one of the upper and lower areas to the other of the upper and lower areas, and thus changing the respective volumes inside the upper and lower areas. The hydraulic device further includes a modular mechanism located inside the lower area that regulates shock absorption at a maximum level of compression of the hydraulic device, as well as in other relative positions.