Abstract: A variable cam arrangement for a lift valve includes a cam having a rigid part which is movable on a camshaft in a radial direction between a retracted and an extended position, the movable part being guided on the camshaft, and stops on the camshaft and the movable part to limit the motion of the part.

Abstract: A camshaft (10) is formed from a plurality of individual chill cast cams (12) and an elongated shaft (24). Each cam (12) has a hole (20) therethrough which has a groove (22) in its surface at a predetermined angular position. The shaft (24) has a plurality of cam receiving portions (24a) thereon which are spaced along the shaft and each have an outer peripheral surface (26) which is a close fit in the hole (20) in one of the cams (12). The outer peripheral surface (26) has a groove (28) therein at a predetermined angular position. The grooves (22,28) cooperate in forming a passage (30) which receives a wedge member (32) to hold the cam (12) in a fixed orientation relative to the shaft (24).

Abstract: A vehicle seat belt retractor (10) includes a spindle (22), a ratchet wheel (30) and a locking pawl (44). The locking pawl (44) is movable between a disengaged position and an engaged position in which it blocks rotation of the ratchet wheel (30) and the spindle (22) in an unwinding direction. The locking pawl (44) is moved into its engaged position in response to a predetermined amount of rotation of the spindle (22) in the unwinding direction. The locking pawl (44) moves back to its disengaged position in response to rotation of the spindle (22) in an unwinding direction. The retractor (10) further includes a torsion spring (210) and a leaf spring (250) acting in series between the spindle (22) and the locking pawl (44).

Abstract: In order to avoid disruption of a stack of signatures, particularly when a cyclically operable signature feeding apparatus is temporarily disabled, the utilization of a unique disabling arrangement is contemplated. The signature feeding apparatus will generally include a driven rotary drum having a plurality of signature grippers disposed about the periphery thereof. The signature grippers are adapted to grip signatures seriatim from a signature supply hopper. A vacuum assembly is driven by a cam for shifting signatures seriatim from the signature supply hopper to the rotary drum for gripping by the signature grippers. The vacuum assembly includes a source of vacuum operatively associated with oscillating vacuum grippers. The signature feeding apparatus further includes a cam follower operatively associated with the vacuum assembly to control operation of the vacuum assembly responsive to engagement with a surface of the cam.

Abstract: A drug pump is disclosed having at least one rotatable cam and a reciprocally mounted follower engaged with the cam, and a tube which is compressed by the follower during rotation of the cam. The drug pump preferably has three followers, including an expulsor follower, an inlet valve follower, and an outlet valve follower. Three cams are provided to reciprocally move the followers, with one cam engaging each follower. The cams are interconnected by a cam shaft. The drug pump is ambulatory and provides two activations per revolution of the cams. The tube loading is nonlinear. Such nonlinear tube loading is taken into consideration to minimize energy consumption and to reduce peak torque loads. A design optimization and manufacturing system is provided to optimize energy consumption of the pump.

Abstract: The valve drive of an internal combustion engine has sliding cams which are pretensioned and displaceable axially on a camshaft. The sliding cams are displaceable from a first position in which they act by a first elevation curve on intake valves into a second position in which they act by a second elevation curve on the intake valves. The sliding cams in the first position positively abut a stop of a transfer element connected between the intake valves and the sliding cams, so long as they travel with a segment in the vicinity of the stop. When the base circle of the sliding cams is reached, the sliding cams are displaced into the second position.

Abstract: A cam assembly and method for providing a substantially constant load to a motor that drives the cam assembly. A torque compensated cam assembly (142,300) includes a plurality of tracks (140,150,152/310,312,314) that are profiled with a surface that varies radially as the cam rotates, thereby actuating cam followers, each of which rolls along a different track. A tangential force developed by the cam followers as they move over rapid radial changes in the surfaces of the tracks produces a total net torque that at times tends to aid the rotation of the cam and at times tends to impede its rotation. The cam is used in a volumetric pump (30) that accurately delivers a desired volume of fluid at a desire rate. To assist in maintaining the accuracy of these parameters, the torque compensated cam assembly presents a substantially constant load to a motor (146,304) that drives the cam.

Abstract: A tubular shaft has a portion of reduced inner diameter at a location where joining to an apertured member is desired. The aperture in the member is lobed with splines in the lobes and has an undercut groove or grooves, and is hardened. The shaft is inserted in the aperture and the reduced inner diameter portion is expanded to force the shaft material into the lobes and groove and around the splines to form a connection which resists torque and axial separation. The tube expansion is effected by forcing a series of balls through the reduced diameter portion, each ball being slightly larger than the reduced diameter and larger than the previous ball but smaller than the remainder of the shaft I.D. A crankshaft is assembled with this method wherein counterweights have lobed apertures to receive end portions of crank pins and main journals having reduced I.D.'s.

Abstract: A method of forming a camshaft tube having a plurality of thinner wall sections adjacent to thicker wall sections. The diameter of a hollow tube is mechanically reduced with a retractable mandrel inserted in the hollow tube. The retractable mandrel has a first portion having a larger diameter than an adjacent second portion. To form a thinner wall section, the larger diameter first portion is positioned under a reducing tool. To form a thicker portion, the smaller diameter second portion is positioned under a reducing tool.

Abstract: An automatic tool change mechanism containing a cam shaft linked with a moter and a slotted cam. The cam shaft is driven by the motor to actuate the slotted cam to turn. The slotted cam is provided with a cam-profile groove, which is dimensioned so as to permit a driven roller to roll along the groove. The driven roller is caused to travel along the course of the cam-profile groove so as to cause an L-shaped rod to rock when the slotted cam is rotated by the cam shaft. The L-shaped rod is linked with a planetary gear, which engages a sector gear. The L-shaped rod contains a rocking section which actuates the planetary gear to turn. The planetary gear is connected with an output pitman, which is in turn coupled with a tool change shaft to cause the tool change shaft to engage in a linear motion. The driven roller also causes a turret, which is normal to the cam shaft, to rotate, and the rotation of the turret causes the tool change shaft to engage in a revolving motion.

Abstract: A cam for a revolving dobby includes a plate with an upwardly extending protective external edge, the external edge has two peripherally located, mutually opposite notches, key levers are associated with the plate and are protected by the external edge, thrust teeth on the auxiliary and drive pushers cooperate with the key levers. The thrust tooth of the drive pusher is rotatable hinged relative thereto and is rotated on the same axis as the auxiliary pusher, springs cooperate with the auxiliary and drive pushers to engage the key levers via one of the notches on the plate.

Abstract: A camshaft has a deactivatable cam which is selectively couplable to or releasable from the camshaft by a coupling pin which is transversely displaceable in a recess in the camshaft. To move the coupling pin between its connecting position, in which it engages a coupling recess in the cam, and its release position, in which it is retracted within the confines of the camshaft, the face of the coupling pin opposite the coupling recess forms a pressure chamber in which variable pressure is controlled by a displaceable control piston. A high pressure is applied to move the coupling pin into its connecting position and a lower pressure is applied to maintain the coupling pin in the connecting position, while a further reduced pressure is applied to retract the coupling pin into its release position.

Abstract: A labelling machine for treating vessels of different shapes or with different labels comprising a rotatingly drivable turntable with at least one labelling station disposed on its circumference with following wipe-on and pressure-applying elements, the turntable having rotary tables with one associated control element each, which cooperates optionally with one of several radial cams secured against rotation and disposed in axially staggered relationship in the direction of the rotary table axis, the control element associated to the rotary table and/or the radial cams are adjusted relatively to each other for change-over of one type of vessel and/or label to another one.

Abstract: A camshaft for controlling the valves in internal combustion engines, including a shaft 1 and at least one forged cam slid- or pushed-upon the shaft and solidly connected with it, with the cam having an opening for receiving the shaft. The shaft having a segment with an increased diameter at the location of the cam compared to the other regions or segments of the shaft, this region is manufactured rollers or rolls, wherein circumferential beads or webs are generated by material displacement in the circumferential direction of the shaft, the opening in the cam for receiving the shaft is widened in a funnel-shaped manner at least on one side and at least over a portion of its axial length, and the dimension of the mouth aperture of the funnel-shaped widening corresponds approximately to the radial height of the beads or webs.

Abstract: A device is provided for adjusting the position of an element, arranged to be movable in a predetermined direction, comprising a driving member for generating driving force to be applied to the element, and a transferring member for transferring the driving force to the element. The device further comprising a plate member, arranged to be movable in parallel to the predetermined direction, for supporting at least the driving member. Thus, it becomes possible to easily execute a position adjustment operation of the predetermined element along the predetermined direction. Such position adjustment can be easily effected by only moving the plate member.

Abstract: At least one rod is normally locked by toothed rollers cooperating with toothed slanted inner portions of V-shaped locking members controlled by a locking cam. The V-shaped locking members are guided within an inner casing of a polygonal shape that has a lower portion for supporting the rod. The lower portion comprises two slanted inner elements which cooperate with a fluted roller placed underneath the underside of the rod. Under an impact, the fluted roller is locked underneath the rod by moving upwardly along one of the two slanted inner elements.

Abstract: The invention relates to an assembled camshaft requiring no further machining, onto which prefabricated cams which have free spaces in their internal diameter are pushed. They have a play-free transition fit during assembly. At least one collar for mounting additional fastening means is preferably provided at the edge of the cams.

Abstract: A switch calibration mechanism having a cam member that is rotatable about a longitudinal axis and that moves along said axis responsive to such rotation. A cam surface on the cam member cooperates with a cam follower on a movable calibrating member to adjust the operating point of a switch during longitudinal movement of the cam member.

Abstract: A modular housing structure for rotatably positioning a cam on a shaft at a predetermined position relative to a limit switch. The modular housing includes upper and lower halves which are snap-fit together by an arrangement of projections and recesses which interconnect the housing halves, and hold a limit switch and a rotating cam in a fixed position relative to one another. Additionally, each limit switch module of the invention may be snap-fit onto the top or bottom of an adjacent limit switch module such that a number of modules may conveniently and easily be aligned along a single shaft. The cam rotatably received in each module is unitarily formed of a single material, and includes an inner spring collar which is deflected slightly when a shaft is inserted through the cam.

Abstract: A camshaft assembly comprising a shaft, a lobe, a gear, and a boss portion is disclosed. The lobe includes a first powdered metal and has a first density, while the gear includes a second powdered metal and has a second density. The boss portion is formed on one of the lobe or gear, and has an aperture sized to cooperate with the shaft and a periphery cooperating with the other of the lobe or gear to fix the lobe against rotation relative to the gear. The boss portion has a third density less than the density of the lobe or gear on which the boss portion is formed. A method of making a camshaft component is also disclosed.

Abstract: A unit cam section for each bank of cylinders in a "V"-type engine has a predetermined cam orientation between the fuel cam and the air cam and between the fuel cam and the exhaust cam wherein a first unit cam section has a fuel cam to air cam angle of between 56.degree. and 63.degree. and a fuel cam to exhaust cam angle of between 143.degree. and 153.degree. and a second unit cam section has a fuel cam to air cam angle of between 0.degree. and 7.degree. and a fuel cam to exhaust cam angle of between 88.degree. and 98.degree.. Each cam has a base circle diameter of at least 3.75 inches. An improved "V"-type diesel engine is disclosed which has multiple banks of cylinders such that one bank employs the first type of unit cam section and the other bank employs the second type of unit cam section wherein each cylinder has a corresponding inverted fuel rocker mechanism for engaging the fuel cam. Each fuel cam is adapted to provide a fuel cam lift to fuel pump plunger lift ratio of at least 0.8:1.0.

Abstract: A camshaft and method of manufacturing thereof wherein the camshaft has a plurality of thick wall sections and a plurality of thin wall sections. Axially spaced cams are mounted on a hollow tube about the thick wall sections. The thick wall sections are deformed outward to mechanically secure the cams to the hollow tube The outer diameter of the hollow tube thin wall sections are not deformed when the thick wall sections are deformed.

Abstract: Improved music box motion generation mechanism is equipped with a wave-shaped cam ring housed at the bottom of the upper housing cavity of a mount case and a rotation disc disposed on top of the cam ring and having a number of symmetric through holes disposed along the periphery thereof and a central through hole located at the center thereof. With each symmetric through hole is associated a fixing member by way of a nut. An actuation rod having a follower disposed at the bottom end thereof is moveably engaged with the fixing member, the rod can move up and down and spin 360 degrees around and travel along with the fixed wave-shaped cam ring. A main shaft is disposed through the central through hole of the rotation disc with its bottom end connected to the music producing and driving shaft of a driving case.

Abstract: A mechanical element has a shaft pressure-fitted into at least one composite engaging member. The shaft has at least one engaging region disposed thereon, and at least one swollen portion formed radially outwardly around the engaging portion. The composite engaging member comprises an engaging body made of sintered alloy and having a recess therein, and a ring-shaped steel inner piece having a hardness not greater than the swollen portion. The inner piece is secured to the inside circumference of the recess of the engaging body by a securing method. The inner piece has a shaft hole formed therein, the shaft hole having a plurality of a larger inside diameter portions and a plurality of a smaller inside diameter portions arranged circumferentially, with the smaller inside diameter arranged to be smaller than the outside diameter of the swollen portion of the shaft.

Abstract: An arrangement for distributing oil in a camshaft of an internal-combustion engine comprises a cylindrical insert which extends axially in the camshaft and carries two separate oil flows in the camshaft. The insert has a centrally arranged oil duct for one oil flow and a hollow space for another oil flow which is constructed between the insert and the camshaft and forms a portion of the arrangement. Both oil flows are fed to the camshaft or discharged from it by way of radial ducts.

Abstract: A pattern generator for use in a zig-zag sewing machine wherein a needle bar is moved back and forth in an oscillatory movement to produce zig-zag action as a consequence of rotation of an arm shaft. The shaft rotates at a constant angular velocity with the period of time required for one cycle of oscillatory movement of the needle bar being equal to the period of time for two successive complete revolutions of the shaft. The generator includes a rotatable cam connected to the shaft to rotate the cam at the same velocity as the arm. A slide block follower engages the cam. The block has raised, intermediate and lowered positions in the cam and moves smoothly between these positions as the cam is rotated.

Abstract: An apparatus for forming phosphor layers in cathode-ray tubes includes a table having a plurality of operating positions for processing panels for cathode-ray tubes to coat phosphor layers thereon. A plurality of angularly spaced clamp heads for holding the panels, respectively, are supported on the table for rotation about a first axis and angular movement about a second axis in each of the operating positions. A cam, which is operatively connected to the clamp heads, has a first cam groove for angularly moving the clamp heads through different angles about the second axis in the operating positions and a second cam groove for keeping the clamp heads in a fixed angular position with respect to the second axis in the operating positions. Joint cam groove mechanisms are combined with the cam for selectively switching between the first and second cam grooves.

Abstract: A hollow shaft with torque-transmitting structural elements such as toothed gears, cams, disc cams, etc., is optionally provided with secondary shaping elements, such as bearing points, stop faces, hexagonal or ring contours, etc. The new shaft is formed from a starting pipe with a substantially uniform wall thickness, which is widened for the positive (form locking) and non-positive (force-fit) connection to the structural elements and for shaping the secondary shaping elements by internal pressure. The maximum widening of the pipe is under the structural elements or on the secondary shaping elements. The new hollow shaft is characterized in that the wall thickness of pipe (12) under the structural elements (14,18) and optionally secondary shaping elements (16,20) is partly enlarged in the axial direction by material flow compared with the wall thickness of the starting pipe.

Abstract: A sorter has a tray moving cam construction which is an assembly of molded plastic parts including an elongated noncircular shaft and a pair of similar cam parts turned 180.degree., end-to-end and having a hub slidably applicable to the shaft from opposite ends, or over opposite ends of a supporting core shaft, the hubs or the core shaft having an axial opening conforming with the non-circular shaft keying them together for rotation, and complemental cam segments on the hubs combine to provide a complete cam profile when the cam parts are applied to the shaft or core shaft in opposite axial directions from opposite ends of the shaft.

Abstract: An actuating apparatus, which can be used to perform variable valve timing of the intake or exhaust valves of an internal combustion engine, includes a hollow shaft with at least one slot defined through a cylindrical wall. A movable cam member is disposed to project through the slot and is rotatable relative to the hollow shaft in a channel defined in the interior surface of the hollow shaft. A base circle band extends circumferentially around the outer surface of the hollow shaft between the endwalls of the slot. The exterior surface of the hollow shaft can define grooves which receive front or back ear members of the cam member. The exterior surface of the hollow shaft also can define recesses, which in some embodiments have bottom surfaces and in other embodiments have partial bottom surfaces or no bottom surface. The recesses can receive tongue members formed on the cam member. The cam member can be engaged by a cam follower that has a roller to engage the cam surface.

Abstract: In a non-circular gear pair comprising two non-circular gears maintained engaged, those gears have first and second intermeshing rotation parts in such a manner that the first intermeshing rotation part forms an intermeshing pitch curve with which the speed of rotation is given to one of the two gears which changes exponentially with respect to the speed of rotation of the other non-circular gear, and the second intermeshing rotation part is extended between the start and en-d points of the first intermeshing rotation part so as to form an intermeshing pitch curve with which the rotation speed ratio and the angular acceleration ratio change continuously, whereby the rotation speed and the angular acceleration change continuously throughout the first and second intermeshing rotation parts including the connecting points thereof.

Abstract: A rotary temperature mechanism for controlling the temperature door of a HVAC system of a vehicle includes a rotatable cam connected by a shaft to a rotary temperature control knob. The cam includes a helical rib thereon coacting with a carrier restricted to linear, sliding motion by the housing in response to rotation of the cam. The housing provides a linear track for guiding the carrier. Detent members are provided between the cam and housing to impart discrete stepping feel on rotation of the knob. The detent members include ball bearings on the cam rolling along a corrugated track of the housing. A cable is connected to the carrier and controls the temperature door by linear motion imparted thereon.

Abstract: A camshaft for internal combustion engines, the camshaft having a double-pipe shaft portion comprising an outer pipe, an inner pipe, and an intermediate layer therebetween. The intermediate layer is composed of a layer of a thermoplastic liquid crystalline polyester resin that has been injected into a gap between the outer pipe and the inner pipe, by an injection molding machine. The camshaft is lightweight and has excellent vibration-damping properties, and further, has a structure allowing an easy manufacture thereof, and thus is suitable for mass production.

Abstract: A cam operated indexing drive having a generally cylindrical cam body operatively engaging a follower equipped plate member, the cam body having a radially outwardly projecting rib having dwell portions on opposite sides of the equatorial centerline so that preload forces are balanced.

Abstract: Transmission that converts a rotary into a translational motion and is preferably attached to a motorized drive assembly, with a rotary drive mechanism and a translationally channeled motion-transmitting component that is attached to the drive mechanism in the vicinity of a track and driven by the drive mechanism. A controller wheel is attached to the motion-transmitting component by way of a cogged gear that converts the translational motion of the motion-transmitting component into a rotary motion on the part of the activating wheel. At least one activating component on the controller wheel engages at least one switch in accordance with the angle of rotation of the controller wheel.

Abstract: A space-saving camshaft with at least one cam which can be deactivated includes a coupling bolt which slides back and forth transversely in the camshaft to connect and disconnect the cam and the camshaft. A compression spring in the camshaft urges the bolt toward a coupling bore in the cam in the absence of a countervailing force and the bolt can be forced out of the coupling bore by increasing the pressure of hydraulic fluid in an adjacent compartment in the cam to disconnect the cam from the camshaft.

Abstract: A method for making cam shafts wherein a plurality of cam lobes (12) are positioned along a hollow tubular shaft (18) and are subsequently secured thereto by expanding the shaft (18) outward, into engagement with the cam lobes (12). The shaft (18) is expanded by deflagrating a propellant (64) to generate a sudden increase of gas pressure which is introducing within the shaft (18).

Abstract: The hub body has an annular support region, spacer regions on either side of the support region, and threaded regions at the axial ends. Each threaded region has an axially extending slot. First and second cam rings, which each have an inner opening with an effective diameter that is less than the outer diameter of the support region and substantially equal to the outer diameter of the spacer regions, are situated in respective spacer regions in abutting relationship with respective sides of the support ring. Respective first and second spacer rings having inner diameters substantially equal to those of the cams, are also situated in the spacer region in abutting relationship with the cams, so that each cam is sandwiched between one side of the support region and a spacer ring. Each spacer ring has a tab or key member projecting radially inwardly from the spacer ring inner diameter into the slot.

Abstract: A process for producing an assembled shaft consisting of a tubular member and driving or coupling elements attached to it, especially a camshaft or driveshaft in the case of which roller bearings with undivided outer bearing races are slid on and finish--assembled prior to the hydraulic expansion of the tubular member for the purpose of fixing the driving and coupling element, so that a light-weight shaft, especially a camshaft, with a low friction loss is produced.

Abstract: A camshaft (16) is described for operating the primary and secondary inlet or exhaust valves (12) of an internal combustion engine having multiple valves in each cylinder, the camshaft having cams (18a, 18b) of substantially the same cam profile and phase for operating the primary and secondary valves of each cylinder. In accordance with the invention, in order to reduce valve train noise at least the trailing ramps of the cams (18a, 18b) are offset by between 1.degree. and 3.degree. relative to one another.

Abstract: A cam gear controlling mechanism is simple in structure, small in overall size and high in reliability of operation. The controlling mechanism comprises a cam gear having toothed and non-toothed portions and a cam groove, a trigger lever having a projection fitted in the cam groove and movable between arresting and non-arresting positions, a spring biasing the trigger lever to the non-arresting position, and electromagnetic means for releasably holding the trigger lever at the arresting position. When the cam gear is engaged with a driving gear, it is rotated in one direction by the latter, but when the driving gear is opposed to the non-toothed portion, a stopper projection on the cam gear is abutted with the engaging projection to lock the cam gear there.

Abstract: A drive arrangement for a camshaft (3) of an internal combustion engine is fitted with a facility for rotating the camshaft (3) relatively to a coaxial drive wheel (5) having a switching component (6), which interacts via a spur toothing (7) with the drive wheel (5) and via a helical gearing (8) with the camshaft (3) and can be axially shifted by a servo motor (13). The servo motor (13) is disposed at the end of the camshaft averted from the drive wheel (5). This prevents the axial length of the internal combustion engine from being extended beyond the drive wheel (5) by the servo motor.

Abstract: A hollow shaft is provided with torque transmitting structural elements, such as gear wheels, cams, disk cams, etc. At least one structural element has a noncircular opening for mounting on a discharge pipe (12) with a substantially identical wall thickness and with at least one support body (20) between the pipe (12) and each structural element (14) with noncircular opening. The discharge pipe (12) is so widened by internal pressure for frictional connection to the structural elements (14) that cover a portion thereof that the circumference of the pipe (12) engages on the inner wall of the structural elements (14) and another portion of the pipe circumference engages on the outer wall of the support body (20). Each support body (20) is constructed as a separate component from the structural elements.

Abstract: A lightweight composite camshaft has stamped sheet metal or other lightweight journal and/or cam elements having locating hubs and assembled onto a hollow tube. An economical and rapid method of assembly uses indexing balls pressed into accurately positioned blind holes in the tube and grooves in the bores or hubs of the cam elements to angularly locate the cams with precision prior to locking them tightly in place by expansion of the tube.

Abstract: An assembled shaft, including a hollow shaft, elements with through-bores attached to the shaft by expansion of the shaft in individual associated longitudinal portions, and supporting sleeves provided inside individual of the elements so as to rest against the hollow shaft and be plastically expanded in situ, by the expansion of the shaft, at least the individual elements of both the elements and the hollow shaft having an elastic pretension in the through-bore thereof.

Abstract: A cam shaft having a shaft member made of steel and having on the outer periphery thereof an axial groove, and a cam and a gear made of a sintered alloy and mounted on the shaft member by engaging a protrusion on a shaft holeel formed in each of the cams and the gear in the axial groove. The shaft member is provided with plating layers of copper on the outer periphery thereof at portions where the gear and the cam are to be mounted. The gear and the cam are impregnated with copper the same as the plating layer. The contact portions are heated by a laser to fuse the copper to join the cam and the gear to the shaft member.

Abstract: A valve timing control apparatus comprises a rotary member drivingly connected to the crankshaft for rotation with rotation of the crankshaft, and a drive mechanism for transmitting rotation of the rotary member to the camshaft. The drive mechanism includes a piston member provided for reciprocation to rotate the camshaft with respect to the rotary member. The piston member has a pressure chamber formed therein. The piston member is urged resiliently in a first direction. The piston member is movable in a second direction opposite to the first direction in response to a pressure introduced into the pressure chamber. The valve timing control apparatus also includes first and second conduit. The first conduit has a first outlet for connection to the pressure chamber. The second conduit has a second outlet for connection to the pressure chamber. The second outlet is spaced away from the first outlet in the first direction of movement of the piston member.

Abstract: A cam shaft assembly (10) constructed from a plurality of lobes (14) spaced along the longitudinal axis of a tubular shaft member (12). Each lobe (14) is defined by a body portion (16) and a camming portion (20). The lobes (14) define a pair of oppositely facing radially extending side surface (22) which have axially extending shoulders (24) thereon. The shoulders (24) are for mating engagement with a gauging surface (44) to positively position the lobe (14) angularly with respect to the longitudinal axis while the lobes (14) are being secured to the tubular shaft member (12). The assembly (10) also includes bearing journals (18) on the tubular shaft member (12). A method and apparatus for making the cam shaft assembly (10) are also provided.

Abstract: A device for adjusting a relative angle of rotation of a camshaft with respect to a drive wheel of an internal combustion engine utilizes a hydraulic linear motor for actuation. A hydraulic pump with a pump rotor is axially arranged with respect to a longitudinal or adjustment axis of the linear motor.

Abstract: Axially spaced cams and bearing rings mounted on a tube are permanently secured to the tube by circumferentially spaced projections on the tube extending into grooves formed on the inside surfaces of the cams and bearing rings.