Abstract: A coupling for resilient interconnection of two objects, especially a wheel axle housing and a chassis of a vehicle. The coupling comprises an elongated supporting piece, which extends in a longitudinal direction and has two end attachment portions and a central portion. The coupling also comprises an elastic element, which is arranged around the central portion and has an approximately cylindrical outer surface and two end surfaces. The coupling further comprises a first and a second abutment member, where the first abutment member has a bottom and a tubular portion, which is fixed to the bottom and has an open end portion and a cylindrical inner surface. The bottom has a trough-going hole through which one end attachment portion can extend. The second abutment member has a hole through which the second end attachment portion can extend. The abutment members are arranged to be interconnected in order to enclose the element.

Abstract: A coupling for resilient interconnection of two objects, especially a wheel axle housing and a chassis of a vehicle. The coupling comprises an elongated supporting piece (50), which extends in a longitudinal direction and two end attachment portions (52, 54) and a central portion (56). The coupling also comprises an elastic element (60), which is arranged around the central portion (56) and has an approximately cylindrical outer surface (64) and two end surfaces (68, 70). The coupling further comprises a first and a second abutment member (82, 84), where the first abutment member (82) has a bottom (90) and a tubular portion (86), which is fixed to the bottom (90) and has an open portion and a cylindrical inner surface (98). The bottom has a trough-going hole (106) through which one end attachment portion (52) can extend. The second abutment member (84) has a hole (108) through which the second end attachment portion (54) can extend.

Abstract: A system for sensing relative position between chassis (5a, 5b) and axle (3) on a vehicle, which vehicle is provided with a so-called V-rod (1) mounted between the chassis (5a, 5b) and the axle (3) where the pointed end of the V is connected by a ball joint (2) to the axle (3) of the vehicle and the opposite ends (1a, 1b) of the V-rod (1) are connected to the chassis (5a, 5b) of the vehicle, which ball joint (2) comprises a partly ball-shaped body (8) permanently fixed to the axle or the v-rod, encircled by a complementarily shaped collar (9) arranged round the whole or parts of the ball-shaped body (8) which ball joint (2) is covered by a cap or housing.

Abstract: A device for the connection of a wheel axle housing with a chassis of a vehicle, comprising a stabilizer with a torsion element that is mounted in the chassis, to first arms, the rigidly attached to corresponding end portions of torsion element, to second arms, that are articulatedly connected with the first arms, and at least two spring/suspension elements with a first member, that is connected with the wheel axle housing, and a second member that is connected with the chassis. According to the invention, torsion element is mounted in the chassis, in the second arms is connected with the wheel axle housing and extend essentially vertically upwardly therefrom. The spring/suspension elements have third arms that are rigidly attached with the corresponding end portions of torsion element, and with the first member.

Abstract: A clutch device for a vehicle, including a spring device (4), which attempts to force a friction plate (3) in a first direction for engagement of the clutch, a pneumatic actuator (10) with a cylinder (11) and a piston (16), which divides the cylinder (11) into a main chamber (20) and an auxiliary chamber (21), and a compressed air source (31), which is arranged via a controllable valve device (32,33) for communication with the main chamber (20) for movement of the friction plate (3) in a second, opposite direction for disengagement of the clutch. The clutch device includes a computer (50) with a memory (54), wherein there is stored a desired auxiliary force exerted against the release bearing (19) as a second function (C2) of the release bearing's (19) position. The clutch device further includes a sensor (22), which is arranged to establish the release bearing's position, and a sensor (23), which is arranged to establish the pressure of the air in the auxiliary chamber.

Abstract: A coupling device for elastic interconnection of, e.g., arms (66) which are linked to a frame (60) of the vehicle. The coupling device (92) substantially comprises two annular, conical portions (112, 114) of a rubber elastic material and an axle (94). A radially internal side of these annular material portions (112, 114) abuts against contact portions (98, 100) at the ends of the axle (94). The coupling device (92) further comprises two axially opposite rings (124, 126) which are arranged to abut against respective external sides of the annular material portions (112, 114). The axle (94) and the rings (124, 126) have attachment areas (96, 121 and 123 respectively), via which they can be attached to the wheel axle housing (82) and the frame (60) respectively. The attachment area (96) for the axle (94) is located between the first contact portions (98, 100).

Abstract: A gear shift device for vehicles with a mechanical, manually operable gearbox (9) for the vehicle (2). A gear level (1) is linked to the hydraulic master (55, 55?, 56, 56?) to respective slave cylinders (8, 18) for engagement or disengagement of gears during a manual mode of operation for the gear shift device. The gear level (1) is arranged to be brought from a position, wherein a gear is engaged, via a neutral or free position. By means of the gear level (1), the gear shift device can be brought into an automatic mode of operation (A). An electronic control device (44) is arranged to receive signals concerning a chosen mode of operation and driving parameter values. When an automatic mode of operation is chosen, the connection between the master cylinders (5, 15) and the slave cylinders (8, 18) is broken, and a connection is established between the control device (44) and the slave cylinders (8, 18) for automatic control of the slave cylinders.

Abstract: A pressure fluid-delivery device comprising a cylinder, a piston and a reservoir for a fluid. A V-seal is mounted in an annulus between the cylinder and the piston. An axial movement of the piston forwards relative to the cylinder results in a delivery of a pressure fluid from the cylinder space. A first leg, in a similar fashion to a check valve, hereby springingly attempts to seal an outlet opening of a channel, which communicates with the reservoir. When the piston is moved backwards, this leg can open the outlet opening, admitting fluid into the cylinder space. The seal rests on a forwardly facing, radially outwardly extending surface of the piston. The seal's first leg projects slantingly radially inwards and is arranged to come into abutment against an axially extending portion of the piston. The seal's second leg projects slantingly radially outwards and constantly abuts sealingly against the cylinder surface.

Abstract: A gear shift device for a vehicle with a manually operated gearbox (30) and a gear shift device (10) for operating the gearbox. The gear shift device comprises a gear lever (15), a master cylinder (11) and a slave cylinder (12), which are connected to the gearbox (30). A hydraulic line (13) connects the cylinders (11, 12) with each other. The gear shift device also comprises a computer (40) which can receive information concerning an initiated gear shift operation, establish the value of a torque which is exerted on a drive shaft (21) between the vehicle's engine (20) and the gearbox (30), and control the engine's (20) power. In the hydraulic line (13) there is mounted a shut-off valve (42) and the computer (40) is arranged to transmit impulses for controlling the shut-off valve (42) based on the received information.

Abstract: A pressure booster comprising a housing (11) with a low-pressure fluid inlet (14), a high-pressure fluid outlet (15), and an inlet (16) and an outlet (17) for compressed air. In the housing (11) there is provided a main piston (22) with an enlarged portion (23), which together with the housing (11) define a third cylinder space (26), which can be connected to the compressed air inlet (16). Furthermore, the main piston (22) has a small end portion (22b) which together with the housing define a second cylinder space (27) and whereby fluid at increased pressure can be moved out of the housing (11) via a high-pressure fluid outlet (15) when the third cylinder space (26) is supplied with compressed air. In an axial passage (29) there is mounted a check valve (30), which can be influenced by a body.

Abstract: A clutch for connecting a flywheel (1) on a drive shaft (2) of an engine with a driven shaft (15) of a gearbox. The flywheel (1) is connected to a clutch cover (7) and between them there is disposed an axially movable pressure plate (8). A clutch disc (9), which is non-rotationally connected to the driven shaft (15), can be clamped between the pressure plate (8) and the flywheel (2) by means of a spring (21) which forces the pressure plate (8) against the flywheel (2). By operating an actuator device (44), the spring's (21) connection with the pressure plate (8) can be broken. According to the invention the clutch comprises a swivel being arranged between the actuator and the driven shaft. The swivel is for transferring a pressure fluid or an electric current to the actuator which may be a hydraulic or an electric actuator.

Abstract: Apparatus for controlling the gears of a motor vehicle comprising a pivotable gear lever for pivoting between gear positions corresponding to the gear positions for the motor vehicle transmission, a primary hydraulic piston/cylinder arrangement coupled to the gear lever, a secondary hydraulic piston/cylinder arrangement coupled to the gearbox of the motor vehicle, and a hydraulic circuit hydraulically communicating with the primary and secondary hydraulic piston and cylinder arrangements and including a flow limiter valve with an open position in which the hydraulic flow in the hydraulic circuit is not limited and a plurality of closed positions for controllably limiting the hydraulic flow in the hydraulic circuit whereby movement between the various gear positions for the motor vehicle is controlled.

Abstract: A method and apparatus for the formation of an enlarged end portion of a bar (48) by upset forging. Before upsetting, the bar end portion (46) is heated to a forging temperature and passed through a passage (40) of a form part (2,4) and into a cavity (44) with increased cross-sectional area which is defined by the form part (2,4). The portion of the cavity (44) which is located opposite the passage (40) is defined by wall (42) with a shape corresponding to the cavity's (44) cross section. For the formation of the enlarged end portion, the wall (42) is pressed against the end of the bar and upsets the bar end portion until the bar material fills the cavity (44). According to the method a bar portion which is located in the passage (40) is also heated to forging temperature, and the form part (2,4) is moved simultaneously with the wall (42), whereby this bar portion (48) is successively fed into the cavity (44) during the upsetting process.

Abstract: A primary pipe system includes a master cylinder with corresponding pressure sensor that produces a primary electrical signal. A secondary pipe system includes a working cylinder with a pressure sensor that produces a secondary electrical signal. The secondary pipe system generates a secondary pressure on the working cylinder as a function of the primary electrical signal. A computer continuously processes the primary and secondary electrical signals to transmit an electrical signal at a fixed frequency with a period that is divided into two intervals to an electromagnetic valve. During the first interval the electromagnetic valve is kept in a first operational position and during the second interval it is kept in a second operational position. The computer varies the intervals according to an algorithm for rapid actuation of the working cylinder.

Abstract: A pressure reduction valve for reducing the pressure in double-acting, closed hydraulic systems when they are not attended. The valve comprises a valve housing (1) with a boring (6), whose ends communicate with the respective circuits, and wherein there are provided two slide valves (21, 22), which are attempted to be forced away from each other by a spring device (39). Each slide valve (21, 22) has a seat (28, 29) for a valve body (31, 32) which is influenced by springs (37, 38) which are also arranged to move the slide valves (21, 22) towards each other. Between the valve bodies (31, 32) there extends slidably a rod (40), whose ends can influence the valve bodies, and whose length is adapted to the slide valves (21, 22) possible distances of movement, thus enabling it to bring the valve bodies alternately away from their seats when the slide valves are forced towards each other under the influence of the pressures in the respective hydraulic circuits.