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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
AB Volvo Patents
Assignee:
AB Volvo
Address:
Goteborg, SE
No. of patents:
315
Patents:


1 2 3 4 5 6 7


Patent Number Title Of Patent Date Issued
4485683 Instrument for measuring the clamping force between a pair of welding electrodes December 4, 1984
Portable measuring instrument for measuring the clamping force between a pair of welding electrodes in spot welding. The instrument comprises a measuring cell (1) designed to be inserted between a pair of welding electrodes. The measuring cell contains a wire strain bridge for measuring
4483687 Vehicle gearbox with continuously variable gear ratio November 20, 1984
Gear box, especially for motor vehicles, with a driving and a driven shaft, which carry pulleys, between which pulleys torque is transmitted by means of a V-belt or chain. The pulleys consist of discs movable towards and away from each other, to make variation possible of the speed ratio
4469333 Sealing device in a transmission with pressure-medium controlled, continuously variable gear rat September 4, 1984
A sealing device in a transmission with pressure-medium controlled, continuously variable gear ratio for sealing a pressure medium connection between a channel in the transmission housing and a central, axial bore in a pulley shaft rotating in the housing consists of two concentric sleev
4468987 Control system for multi-ratio gearing September 4, 1984
A master controller can be set by the driver in any of a range of forward drive positions D1 to D6 to pre-set upper and lower limits to the engine speed in any of a range of forward ratios such that any increase or reduction in vehicle speed which would cause the engine speed to exceed
4467607 System for controlling the inlet pressure in a turbocharged combustion engine August 28, 1984
A system for controlling the inlet pressure in a combustion engine includes a microprocessor wherein a command value for the pressure as a function of engine speed is stored and which controls a solenoid valve controlling the pressure in a pneumatic operating mechanism to a waste gate in
4463565 Turbocharged internal combustion engine with boost pressure and ignition timing control for prev August 7, 1984
A system for preventing knocking combustion in a turbocharged Otto engine includes a knock detector mounted on the engine block and coupled to a microprocessor which controls the engine charge pressure and ignition timing. Upon indication of a certain knocking intensity, the processor
4459808 System for controlling the charge air pressure in a turbo-charged combustion engine July 17, 1984
A system for achieving temporary increase in performance in a turbo-charged combustion engine comprises a microprocessor in which there are stored a value of the maximum permissible charge pressure at constant load and a higher value of the maximum permissible charge pressure at increasi
4432430 Wheel spinning control system for motor vehicles February 21, 1984
The invention relates to a control system for preventing wheel spinning in the drive wheels of a motor vehicle with an engine with fuel injection. The control system has wheel speed sensing means and a processor unit which limits the quantity of fuel injected in steps in proportion to th
4412686 Folding step for vehicles November 1, 1983
A folding step beneath a vehicle door has a folding mechanism comprising a shaft joined to the door and extending downwards along the extended hinge line. The shaft has a driver interacting with abutments on the step to initiate folding out and folding up of the step. The step is loaded
4412455 Method and apparatus for measuring the torque or power of a boat motor in place November 1, 1983
A process and a portable apparatus for performance testing of boat motors, especially with outboard drives. A brake disc is rotatably journalled in a hub of a supporting element which carries brake callipers and a lever arm, at the outer end of which a force-measuring instrument is arran
4405038 Device for troque transmission between a drive shaft, e.g. an engine crankshaft, and an attachme September 20, 1983
A device in motor vehicles for torque transmission between an engine crankshaft and at least one attachment unit in the form of a hydrodynamic retarder and/or a clutch-independent power take-off, wherein the torque transmission is accomplished with the aid of a bearing-mounted extension
4400984 Handling mechanism for a rectilinear movement with connecting perpendicular movement segments at August 30, 1983
A handling mechanism for making a gripping device perform a horizontal transport movement with connecting vertical raising and lowering movements at either end. A parallelogram linkage arrangement carrying the gripping device has one arm pivotally joined to the crank pin of a reciprocall
4399786 Method for pilot injection of fuel in diesel engines August 23, 1983
A method for the pilot injection of fuel in a direct injection diesel engine with a depression in the tops of the pistons. The pilot fuel, of relatively high cetane number, e.g. diesel fuel, is sprayed prior to the main spray, obliquely from the side into the piston depression in a d
4392605 Package July 12, 1983
A package, comprising: first and second package parts displaceable toward and away from one another for opening and closing the package and for adjusting the size of the package to an article to be packaged therein; the first package part having at least a first wall and the second packa
4391164 Overdrive for motor vehicles July 5, 1983
A planetary-type overdrive for motor vehicles in which, when engaged, the sun pinion is fixed relative to the housing by means of a completely disengageable one-way clutch when torque is transmitted from the input shaft to the output shaft. Free-wheeling is achieved when torque is tr
4376552 Back seat headrest March 15, 1983
A headrest for back seats in station wagons arranged on a forwardly foldable seat back is arranged on or is integrated with an arm pivotally arranged at the top, rear edge of the back seat, to be swung out of the way from a use position to a stowage position beneath the seat back when
4376475 Synchronizer for motor vehicle gearboxes March 15, 1983
In a synchronizer for vehicle gearboxes, a synchronizing ring has an external synchronizing cone which cooperates with an internal synchronizing cone on a shifting sleeve. The ring cone is made on an axial flange which extends from a radial web and is directed towards the shifting sl
4368882 Device for separating an end blank from a stack of blanks January 18, 1983
A device for separating an end blank from a stack of blanks comprises a stacking rack and an arrangement including at least one drivable feeder tooth, at least two supports lying against the outer side of an end blank and at least one abutment. In said arrangement which can be coupled
4359023 Trough-shaped sheet metal component with a deeper and a shallower portion November 16, 1982
A trough-shaped sheet metal component with a deeper and a shallower portion such as an oil pan for combustion engines, and a method of deep-drawing it. In the transition between the deeper and the shallower portion, the edge between the bottom of the shallower portion and its side walls
4356373 Electrical resistance welding apparatus October 26, 1982
A welding gun for electrical resistance welding has an electrode holder arm (1,2,3) made as a shell construction. The current supply to the stationary electrode (5) as well as the coolant supply to and returning from the electrode is effected with the aid of two copper tubes (14) which r
4354521 Device in a fuel tank for motor vehicles October 19, 1982
A device in a fuel tank for motor vehicles which, if the fuel level is low when driving on an inclined surface, retains a required amount of fuel around the fuel line opening to prevent air intake. Around a container on the tank bottom, into which the fuel line opens, is a larger contain
4350021 Device for preventing icing in an air conditioning unit for motor vehicles September 21, 1982
A device for preventing icing in a thermostat-controlled evaporator in an air conditioning unit for motor vehicles including a first sensor for sensing the speed of the air through the evaporator and preferably also a second sensor for sensing the humidity of the air. A control unit sets
4343230 Auxiliary device for climate-control units in motor vehicles August 10, 1982
An auxiliary device for climate-control units in motor vehicles. The device is coupled to an air duct leading from the fan of the unit to the floor space in front of the back seat. The device comprises a fan which draws air through the duct and blows it out into the passenger space in fr
4336957 Passive safety belt system for motor vehicles June 29, 1982
The invention relates to a passive safety belt system for motor vehicles. The belt extends from a point of attachment at the floor of the vehicle via a redirecting fitting attached to the door, to a reel mechanism arranged in the door. In the vicinity of the fitting, a strap is attached
4334696 Rear wheel mounting for motor vehicles with a rigid rear axle June 15, 1982
A rear wheel mounting for motor vehicles with a rigid rear axle carried on a pair of support arms which are articulated on the body. A pair of torque stays are journalled on the rear axle to transmit driving and braking torque to the body. The torque stays form a pair of stays which coop
4324149 Gear shift not requiring adjustment April 13, 1982
A gear selector mechanism for automatic transmissions with a gear lever connected to the gearbox and movable in a selector gating for setting the correct gear position. The selector gating is connected to the gearbox in such a manner that the movements of the gearbox are transmitted unif
4318708 Method of investigation or control of catalysts or catalyst reactions March 9, 1982
A method of investigation or control of catalysts or catalyst reactions wherein a gas or gas mixture is brought into contact with the catalyst (12). The properties of the catalyst and/or the progress of the reaction depending on the catalyst are determined or controlled by applying an
4317583 Passive safety belt system for motor vehicles March 2, 1982
A passive safety belt system for motor vehicles. The upper point of a diagonal-type belt is displaced by a fitting, slidably mounted in a guide track extending above the door between vehicle posts that are forward and rearward of the driver's door and joined to a cord connected with a
4312553 Electrical connection device January 26, 1982
An electric connection device e.g. for coupling together cables between a towing vehicle and a trailer, wherein a first member has an inner soft elastic body in which the end of a cable is molded and to which a casing is attached, e.g. by injection-molding, for fixing plug pins connected
4310718 Coaxial cable for high amperages January 12, 1982
In a welding current cable of coaxial type, the conductors for one current direction are arranged essentially parallel to each other and freely movable transversely with respect to each other as a conductor bundle located centrally in the liquid-impermeable cable casing. The central
4309918 Retarding means for motor vehicles January 12, 1982
A change-speed transmission in which gear-ratios are established by engagement of appropriate fluid-pressure operated friction brakes and clutches includes a manually-operable control for partially-engaging, to provide retardation of a vehicle, those friction brakes and/or clutches n
4296679 Cylinder with two-stage movement, especially a welding cylinder October 27, 1981
In a cylinder with a two-stage movement, a first piston moves in a housing, and in the first piston a second piston moves, which has a piston rod sliding in an end of the housing. On its side facing away from the piston rod, the second piston is provided with a guide member which is guid
4293271 Device for translating a movement in one plane to a movement in a plane essentially perpendicula October 6, 1981
A device for translating movements in one plane to movements in a perpendicular plane wherein a first member, movable on a frame with a reversible drive, has gripping arms attached to it. A second movable member is also attached to the first member and connected to the arms. The firs
4279328 Device for orienting a lifting means, for example, in relation to a load July 21, 1981
A device for orienting a movable object such as a lifting fork truck in a certain position relative to a second object such as a load, the device having light-emitting device for illuminating the second object so that an image with lighter and darker fields is created thereon, a photoele
4273084 Fuel injection system for diesel engines June 16, 1981
A fuel injection system for direct injection diesel engines with a depression in the tops of the pistons. A first injection pump has a regulator and accompanying first injector for each cylinder, the injectors being disposed to spray the fuel in a zone around the center axis of the r
4269079 Arrangement for preventing incorrect shifting in a vehicle gearbox May 26, 1981
Arrangement for preventing incorrect shifting in a gearbox having a base portion and a two-speed range portion has a gear selector mechanism coupled to a shift unit and comprising a first blocking system coordinated with the shift unit of the range portion and the gear selector mechanism
4267741 Vehicle gearbox May 19, 1981
A gearbox for motor vehicles having an input shaft with an input gear; a countershaft with a drive gear for the countershaft, said driving gear engaging the input gear; a transmission main shaft with a number of gears depending on the number of gear ratios, each of said gears being in
4265137 Gear selector mechanism for a vehicle gearbox May 5, 1981
A gear selector mechanism for a vehicle gearbox comprises axially displaceable shift rails and rocker forks joined thereto. Upon axial displacement of the shift rails, the rocker forks can swing to displace engaging sleeves in the coupling and synchronizing means of the gearbox. A pl
4260165 Shaft seal, intended for use at high temperatures April 7, 1981
A shaft seal intended to function at high temperatures with an elastic sealing ring carried by a retainer ring of e.g. stainless steel which has an L-shaped section. From the axial portion of the retainer ring, radially inwardly directed supporting tongues extend, providing a small conta
4237412 Voltage regulator for a generator December 2, 1980
A voltage regulator intended for a car generator in order to give an appropriate charging voltage which can be compensated for variations in ambient temperature or the like. An advantage of the present regulator is that it may be used with or without an external regulator element, the
4235476 Wheel cover for vehicle wheels November 25, 1980
A wheel cover for vehicle wheels consists of a disc-shaped member with a central opening and a plate which closes the opening and is held in place by axial springs at the edge of the opening. The springs have inner gripping surfaces designed to grip around a wheel hub, for example, b
4231982 Method for the production of tools for deep drawing, moulding, extruding and the like November 4, 1980
An exact replica of a tool for deep drawing, moulding, extruding and the like is manufactured by a method according to the present invention by thermally spraying the wearing surface of the tool to be produced onto a negative replica of the tool to be produced, said last replica being
4231613 Child's seat cushion for motor vehicles November 4, 1980
A seat cushion for children, placed on the seat bottom of a vehicle seat to provide an elevated sitting position. Uniformly constructed guides for a hip belt, arranged on two opposite sides of the cushion, engage the belt to prevent it from sliding upwards when the cushion is positioned
4231607 Side collision protection system for motor vehicles November 4, 1980
A system for protecting motor vehicle occupants against injury in side collisions comprises first reinforcing members arranged between the exterior and interior panels of the vehicle body sides and/or doors and second reinforcing members incorporated in the vehicle seats, the members
4228697 Vehicle transmissions October 21, 1980
Multi-ratio epicyclic change-speed gearing comprises at least three epicyclic gear trains or gear sets, with the planet carrier of the first gear set rotationally secured to the ring gear of the second gear set and an input is connected to the sun gear of the first gear set. Means are
4223572 Overdrive for motor vehicles September 23, 1980
An overdrive for motor vehicles is disclosed which comprises a planetary carrier joined to an input shaft, a ring gear with internal teeth, said ring gear engaging planet pinions carried on the planet carrier and being joined to an output shaft, and a sun pinion engaging the planet pinio
4213675 Interiorly adjustable outside rear view mirror for vehicles July 22, 1980
A device for manually adjusting the setting of an outside vehicle rear view mirror by manually operating a grip member provided in the interior of the vehicle. The device comprises a generally cylindrical holder body rotatably but axially non-displaceably mounted in a through-hole in a
4208566 Spot welding device June 17, 1980
A C-shaped spot welding gun has its movable electrode extending from one arm of the gun's C-yoke. An air cylinder for moving the electrode is attached on the opposite side of the arm. A package of parallel copper strips is bent to U-shape and surrounds the arm below the air cylinder.
4181198 Energy absorber, especially for motor vehicles January 1, 1980
An energy absorber, especially for motor vehicles for e.g. supporting the vehicle bumper, comprises at least two telescopically displaceable tubular members having a common center axis. At least a portion of the length of the outer member has a smaller inner diameter than the outer diame
4176728 Combined automatic and manual guidance system December 4, 1979
A system for combined automatic and manual control of the motion of a vehicle comprises at least one manual control device and automatic equipment with at least one executing device. The executing device is coupled to the manual control device in such a way that a counterforce is gen
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