Abstract: In a high pressure fuel supply pump for transmitting rotation of a cam to a reciprocating plunger via a tappet and a retainer, a diametric force acting on the plunger is reduced. The pump includes the retainer disposed on the plunger and a return spring exerting an urging force on the retainer in a direction of the tappet. A clearance between a plunger leading end and a tappet bottom surface opposed thereto is set to be greater than a clearance between a retainer bottom surface and the tappet bottom surface opposed thereto, and a clearance between a retainer inside diameter section and a plunger peripheral surface section opposed thereto is set to be greater than a clearance between a retainer outside diameter section and a tappet inner wall opposed thereto.

Abstract: A variable valve gear for an internal combustion engine that is capable of being disposed in a small compact manner and also capable of reducing the generation of a knocking sound. In a variable valve gear, a camshaft is supported by supporting walls of a cylinder head, and camshaft holders formed separately from the supporting walls, two exhaust rocker arms are disposed adjacent to each other, and a connecting pin is movably inserted into pin holes provided in the exhaust rocker arms by an actuator through a pushrod to connect or disconnect the exhaust rocker arms to or from each other. In the variable valve gear, the pushrod is slidably supported in a rod insertion hole of the camshaft holder with the connecting pin being disposed between the pair of camshaft holders and has an axis that is offset toward the camshaft with respect to an axis of the pushrod.

Abstract: A mechanically controllable valve operating mechanism includes a cylinder head, a camshaft, a transmission arrangement mounted to move in the cylinder head via a bearing device. A gas exchange valve has the transmission arrangement act thereon. A valve-lift adjusting device comprises a rotatable adjusting element with an eccentric element having two base points and a peak contour, and at least one further eccentric element. The valve-lift adjusting device acts on the transmission arrangement so that different valve-lift positions are settable. The transmission arrangement is connected to the valve-lift adjusting device and to the camshaft. The at least one further eccentric element of the rotating adjusting element is arranged so that at least two peak contours are provided so that, depending on a rotational angle ? of the rotating adjusting element, the eccentric element or the at least one further eccentric element engage with the transmission arrangement.

Abstract: A tappet converts rotational motion of a cam placed on a lower side of a plunger into linear reciprocating motion and transmits the converted linear reciprocating motion to the plunger. The tappet includes a roller and a shoe. The roller is reciprocated in a top-to-bottom direction in a state where the roller contacts an outer peripheral surface of the cam. The shoe rotatably supports the roller and is reciprocated in the top-to-bottom direction. In the fuel supply pump, there is satisfied an inequality of X<r. In this inequality, X denotes a distance between a top-dead center and a bottom-dead center of the plunger in the top-to-bottom direction, and r denotes a radius of the roller.

Abstract: A switchable cam follower (1) of a valve train of an internal combustion engine is proposed, having an inner lever and an outer lever (2, 3), wherein the levers (2, 3) can be connected to one another via coupling means (12) and run on a common pin (15) such that they can be moved pivotably relative to one another, which pin (15) is projected around by at least one group of turns (16) of a swivel pin spring (17) as cam restoring spring, wherein a first limb (19) which protrudes from an end side (18) of the group of turns (16) acts on a first clamping point (20) of the outer lever (3) and a second limb (22) which protrudes from another end side (21) of the group of turns (16) acts on a second clamping point (23) of the inner lever (2), in the rotational direction in such a way that the levers (2, 3) are present such that they are stressed towards one another, wherein the pin (15) runs in a “floating” manner with respect to the holes (13, 14), wherein the group of turns (16) comprises a bush (24) with play, wher

Abstract: A novel cam mechanism or assembly is provided by the present disclosure. The cam mechanism can have a cylindrical or barrel shape configuration. The cam mechanism includes a first module or body (also referred to as an inner body), a cam module or body encircling said first module, and a guide module or body (also referred to as an outer body) encircling each of the first module and the cam module. The cam mechanism is configured to translate rotary motion or torque of the cam module about a rotational axis (A) into linear displacement of the first module in a parallel manner along said rotational axis (A). The outer body or guide body encircles each of the cam module and the inner body. The outer body can be a stationary or fixed structure, and can be configured to physically isolate the movable components of the cam mechanism (e.g., the cam module and the inner body).

Abstract: The present invention provides a shim for a valve drive mechanism which is interposed between a pad surface of a rocker arm and a stem end surface of a valve. The shim includes a ship top surface that is contacted by the pad surface. The shim top surface is rotated about a center thereof to be cut, is provided with a center hole at the center thereof, and is shaped such that the pad surface does not contact an intersection line between an inner peripheral surface of the center hole and the shim top surface when the rocker arm is swung.

Abstract: A cam mechanism for converting rotary motion into a constant velocity reciprocating motion includes a driven shaft rotatable about an axis of rotation. First and second cam members mounted to the driven shaft for conjoined rotation therewith. A first pair of followers is in contact with the first cam member on opposite sides thereof, and a second pair of followers is in contact with the second cam member on opposite sides thereof. The first pair of followers and the second pair of followers mounted to a follower frame for conjoint motion therewith. The first cam member and the second cam member each have a non-cardioid shape cam profile that results in a constant velocity reciprocation motion of the follower frame upon rotation of the driven shaft about the axis of rotation.

Abstract: An epicycloid planet gear cam that converts rotational movement of a driveshaft into linear movement of an output device is disclosed. An epicycloid planet gear is assembled inside a stationary housing with an internal stationary ring gear. A driveshaft eccentric is connected to a driveshaft. The driveshaft eccentric rotates freely in a mounting hole of the epicycloid planet gear. When the driveshaft rotates, the driveshaft eccentric engages the epicycloid planet gear against the stationary ring gear and causes the epicycloid planet gear to rotate. A cam follower pin attached to an output device is held against a cam track of the epicycloid planet gear. As the epicycloid planet gear rotates, the raised cam track height or the slotted cam track distance from the center of the epicycloid planet gear causes the cam follower pin to move up, down, in, or out thereby moving the output device.

Abstract: The present invention proposes a cam follower roller device, in particular for a fuel injection pump of an internal combustion engine, including a tappet with a sleeve having an opening for partially accommodating a roller, a roller mounted rotatably in the sleeve and having a portion which protrudes axially from the opening of the sleeve provided to cooperate with a cam, and a roller support body housed in the sleeve. The roller includes a cylindrical spindle and a cylindrical body, the ends of the spindle projecting from the lateral faces of the body. It is proposed that the support body includes supports open towards the opening of the sleeve and supporting the ends of the spindle.

Abstract: A loading machine for feeding a receiver includes, but is not limited to, a drum cam that is configured to rotate. The drum cam includes, but is not limited to, a first cam path, and a second cam path. A rammer subassembly is positioned proximate the drum cam. The rammer subassembly includes, but is not limited to, a first member that is configured to engage the first cam path and to move longitudinally with respect to the drum cam upon a rotation of the drum cam, and a second member that is configured to telescopically engage the first member and further configured to engage the second cam path and telescopically move with respect to the first member upon the rotation of the drum cam.

Abstract: A valve drive system of an engine includes a camshaft that is supported by a cylinder head of the engine and on which a plurality of cams having different valve lift characteristics are arranged at predetermined intervals, a rocker shaft that is supported by the cylinder head so as to be parallel or substantially parallel to the camshaft, and a rocker arm that is swingably supported by the rocker shaft. The rocker arm is arranged between one of the cams and an intake valve or an exhaust valve and is arranged so as to be movable in an axial direction of the rocker shaft. A presser of the rocker arm that presses the intake valve or the exhaust valve extends in the axial direction and has a length greater than an interval between the cams. The valve drive system includes a drive unit that moves the rocker arm toward one side or toward an opposite side in the axial direction by the interval between the cams.

Abstract: The roller finger follower employs two independent lost motion arms and a coupling device that locks both arms. A coupling element allows for changing from locked to unlocked mode. Components of the coupling element include a shuttle pin with a head, a shank and a cutout on which a rod is positioned, a coil spring which surrounds the outside diameter of the shuttle pin shank, and an end cap. By positioning the spring on the shuttle pin shank, a large spring diameter and short spring height can be used which allows for compact packaging. Also, a low spring rate is required.

Abstract: An apparatus for shifting gears of a transmission includes a plural control fingers each of which is shaped as a cam form and fitted into a control shaft and rotated together, on which projections are arranged to be distributed at a predetermined angle along a circumferential direction around which the control shaft rotates, and a shift lug that is provided on a shift rail and shaped to accommodate the control finger as plural to contact the respective control fingers and that contacts the projection of the control finger and is pressed when the control shaft rotates so that the corresponding shift rail is shifted to a shifting gear position.

Abstract: In a high pressure fuel supply pump for transmitting rotation of a cam to a reciprocating plunger via a tappet and a retainer, a diametric force acting on the plunger is reduced. The pump includes the retainer disposed on the plunger and a return spring exerting an urging force on the retainer in a direction of the tappet. A clearance between a plunger leading end and a tappet bottom surface opposed thereto is set to be greater than a clearance between a retainer bottom surface and the tappet bottom surface opposed thereto, and a clearance between a retainer inside diameter section and a plunger peripheral surface section opposed thereto is set to be greater than a clearance between a retainer outside diameter section and a tappet inner wall opposed thereto.

Abstract: A variable displacement reciprocating pump with pumping rate that is adjustable from zero to maximum stroke while the pump is running. Stroke is varied by changing relative position of pairs of eccentric inner and outer cams that drive the pump's plungers. The pump's input drive shaft drives two gear trains: a first gear train that turns the inner cams and a second gear train that turns the outer cams. These cams normally revolve together with no relative motion occurring between them. A rotary actuator is positioned in the first gear train to rotate the inner cams relative to the outer cams and thereby changes the pump's stroke. A computerized system of sensors and control valves allows the pump to be automatically controlled or limited to any one or combination of desired output flow, pressure and horsepower.

Abstract: A cam follower for actuating a gas exchange valve of an internal combustion engine. The cam follower has a housing and a cam roller mounted in a recess of the housing for disengaging a cam of a camshaft. The cam roller is mounted radially on a bearing journal by a needle bearing that extends in the bearing bore thereof. The width of the needle bearing is significantly greater than the width of the cam roller in the region of the cam disengagement. The width of the needle bearing is also significantly greater than the width of the cam roller in the region of the bearing bore and significantly greater than the clear space between roller contact surfaces which delimit the recess and on which the cam roller runs axially with the end faces thereof.

Abstract: A compliant follower cam system includes a cam rotatable about a cam rotational axis continuously aligned with a cam displacement axis. The cam has a body center spaced from the rotational axis. A compliant follower has an elastically deformable first contact wall positioned proximate to a cavity. The first contact wall is directly contacted by the cam body outer surface. A compliant follower non-deflected condition occurs when a first contact wall outer surface directly contacts the cam body outer surface prior to deflection of the first contact wall, with the cam body center out of alignment with the displacement axis. Rotating the cam moves the body center toward the compliant follower into alignment with the displacement axis. The cam thereby deflects the first contact wall into the cavity defining a compliant follower deflected condition and creates a biasing force releasably frictionally engaging the first contact wall and cam.

Abstract: A roller structure for a high pressure pump, the roller structure being applied to a tappet configured to convert a rotational movement to a rectilinear movement of a cam and transfer the converted rectilinear movement to a piston in the high pressure pump of an internal combustion engine, may include a roller main body installed inside the tappet and including grooves formed at both distal side ends thereof, respectively; and rolling members inserted in the grooves of both side surfaces of the roller main body in a longitudinal direction thereof, respectively.

Abstract: A deactivating rocker arm for use with a cam having at least one no-lift safety lobe is provided. Safety lobe contacting surfaces on the rocker arm are configured for contact with safety lobes during abnormal operation of the rocker arm. When the rocker arm is deactivated, the safety lobe contacting surfaces may come into contact with safety lobes when excessive pump-up of a lash adjuster brings the rocker arm undesirably close to the rotating cam. This contact limits the range of motion of the rocker arm during certain instances of abnormal operation, promoting more effective transition between deactivated and activated states and preventing damaging contact between the rocker arm and the cam lobe.

Abstract: A multi-mode valve control mechanism for an engine includes a primary cam follower rotatably mounted within a mount and having one end engaging a camshaft. One or more secondary cam followers are rotatably mounted within the mount and having one end engaging the camshaft. Each secondary cam follower is operatively coupled to a shaft. A follower is dedicated to each cam lobe. A frequency and a duration at which valves in a valve train are actuated is changed by activating only the primary cam follower in a first mode of operation, or activating both the primary cam follower and the one more than one secondary cam followers in a second mode of operation, depending on whether the control mechanism has been activated or not. In either mode of operation, the entire valve train assembly is actuated.

Abstract: A structural assembly (1) for a high pressure fuel pump, with the structural assembly (1) having a tappet (3) connected to a pump piston (2), which bears frontally against a contact surface (7) of an inner side (8) of the bottom (5) of the pump piston (2), the bottom (5) being connected to a guide skirt (10) of the tappet (3). An outer peripheral wall (11) of the pump piston (2) is surrounded near the inner side (8) with radial lash by a bore (12) of a spring plate (13) on whose bottom-distal side (14) a coil compression spring (15) bears for resetting the pump piston (2), and a bottom side (16) of the spring plate (13) is situated opposite an annular surface (17) of an entraining collar (18) on the pump piston (2). The entraining collar (18) is a separate, disk-like element seated on the pump piston (2) with slight axial distance to the spring plate (13), which spring plate (13) possesses a disk section (19) with the bottom side (16) having the bore (12).

Abstract: A tappet (10) is movable along an axis. The tappet (10) includes a skirt defining an opening (18) and an alignment device (22) positioned at least partially within the opening (18). The alignment device (22) has a generally T-shaped cross-sectional shape when taken through a plane substantially parallel to the axis and has a non-T-shaped cross-sectional shape when taken through a plane substantially perpendicular to the axis.

Abstract: A high-durability cam wheel assembly mounted in a shell of a refrigerant recovery machine is disclosed to include a frame member (1) having rails (12) mounted therein, a sliding block (2) mounted inside the frame member (1) and having a plurality of sliding grooves (21) extending around the periphery thereof and kept in contact with the rails (12) of the frame member (1), and a cam wheel set (3) consisting of a first cam wheel (31) and a second cam wheel (32) arranged at two opposite sides relative to the sliding block (2) and connected to each other in an axle bearing (23) inside the sliding block (2).

Abstract: A device for varying charge-changing valve lift in an internal combustion engine includes a camshaft and a cam carrier disposed on the camshaft. A plurality of different cam profiles are disposed on the cam carrier. An adjusting shaft is disposed parallel to the camshaft. A first transmission element including a guide path is disposed non-rotatably and axially displaceably on the adjusting shaft. A first engagement element is connected in a stationary manner to a housing of the internal combustion engine and is configured to be guided along the guide path via rotation of the adjusting shaft. A second engagement element is disposed on a second transmission element and is configured to be guided along the guide path via rotation of the adjusting shaft. The second transmission element is connected to the cam carrier so as to axially displace the cam carrier along the camshaft.

Abstract: The invention relates to a force transmission unit (1), particularly enabling the transmission of forces between a lever and a steering member, including: —a force transmission device (8) comprising a shaft (81) defining a central axis (X-X), and—a force accompanying device (3) comprising: —a cam (71), the shaft and the cam being suitable for being rotatably mobile in relation to one another, —a push member (6) suitable for engaging with the cam and for translating along the shaft, and—and a resilient member (9) suitable for working under compression during a translation movement of the push member (6), said translation movement being caused by activating the transmission unit. The push member (6) includes, at the same time, a body (68) designed for receiving cam followers (621; 622) suitable for engaging with the cam (71), and a linear bearing (64) arranged in the body, the bearing being suitable for engaging with the shaft (81).

Abstract: Provided is an ice maker that includes a mold including a plurality of cavities for receiving water to be frozen into ice pieces, a driver operatively connected to the mold for adjusting a position of the mold to a plurality of different locations during an ice making cycle, and a controller. A limit switch is located at a plurality of different positions along a range of travel of the mold to be actuated and transmit a signal indicative of the mold's arrival at the different locations. The mold can travel along path including first portion having a first axis of rotation and a substantially vertical portion, and can be driven by a motor with a drive shaft rotatable about a single axis of rotation. The motor can drive both the mold and a bail arm, and the mold can be leveled upon reaching a predetermined location. The ice maker can perform a Dry Cycle in response to detecting an anomaly during ice making.

Abstract: A continuously variable valve lift system for actuating a combustion valve of an engine includes a camshaft having a camshaft lobe rotatable about an camshaft axis of rotation. A rocker assembly is pivotable for providing reciprocating motion to the combustion valve. A control shaft is rotatable about a control shaft axis of rotation such that rotation of the control shaft about the control shaft axis of rotation changes the position of the rocker assembly to vary the lift of the combustion valve. An actuator selectively rotates the control shaft between a minimum lift position and a maximum lift position. A bias spring surrounding the control shaft axis of rotation biases the control shaft only from the minimum lift position to a predetermined position which is intermediate the minimum lift position and the maximum lift position upon failure of the actuator.

Abstract: The invention relates to a finger follower, or lever (1) of a valve train, for example of a piston-type internal combustion engine, with a lever body (2) having an end-sided base web (4), on which there is a spherical cap-shaped bearing cup (8) for an articulated mounting on a bearing pin of a housing-sided support element, said bearing pin terminating as a spherical cap; and on this base web is fastened a retaining clamp (9), engaging with an annular groove of the bearing pin, in order to secure the finger follower (1) on the support element in such a way that said finger follower can move to a limited extent.

Abstract: A valve train control device, for use in a reciprocating piston internal combustion engine having a camshaft with a primary cam lobe, is provided herein and generally includes a primary cam follower positioned in an operational path between the primary cam lobe and a corresponding valve with the primary cam follower being constructed to follow the primary cam lobe while an auxiliary motion transfer device, having at least a portion responsive to at least one engine parameter, may be placed in a variable motion operational path including the primary cam follower to shift the primary cam follower relative to the primary cam lobe during at least a portion of the camshaft rotation to alter one or more valve operating parameters relative to a set of valve parameters defined by the primary cam lobe profile interacting with an unshifted primary cam follower.

Abstract: A system and method of actuating one or more engine valves is disclosed. In one embodiment, the system comprises: a valve train element; a rocker arm pivotally mounted on a shaft and adapted to rotate between a first position and a second position, the rocker arm selectively receiving motion from the valve train element; a valve bridge disposed above the one or more engine valves; and a lost motion system disposed in the valve bridge.

Abstract: An amusement park ride adapted for fully rotating a passenger compartment in response to vehicle motion along a guide track. The ride includes a vehicle chassis that engages the guide track and travels along the ride path during operation of the ride. The ride further includes a cam-based positioning assembly that is supported by the vehicle chassis to move with it along the guide track. The positioning assembly operates in response to being moved along the guide track to rotate the passenger compartment. The positioning assembly rotates the passenger compartment in counterclockwise and clockwise directions to provide 360-degree rotation. The positioning assembly includes a cam shaft with three cam follower pairs offset along the shaft and extending outward from the shaft at angular offsets, and three cam rails are used to selectively position the followers to rotate the cam shaft and set the position of the passenger compartment.

Abstract: A speed change operation apparatus includes a pivotal body operatively connected to a trunnion shaft to be pivotally displaced in response to an operational displacement by an operational tool, a positioning body operatively coupled with the pivotal body so as to be pivotally displaced in response to a pivotal displacement of the pivotal body, a main urging mechanism for applying an urging force to the pivotal body via the positioning body for returning the pivotal body from an operational position to the neutral position, and an auxiliary urging mechanism for applying an auxiliary urging force to the pivotal body for returning the pivotal body from the operational position to the neutral position.

Abstract: A rocker arm unit constituting a valve gear includes a support member, a rocker arm including a roller and walls opposed to each other with the roller being interposed between them and a wire member bridging the support member side and the rocker arm side with each other. The walls have shaft holes into which both ends of a shaft member rotatably supporting the roller extend respectively. The walls have lengthwise ends connected to each other via a receiving portion supported on a top of the support member so that the rocker arm is swung. The wire member has an extending portion extending from the support member side to the rocker arm side and having a distal end. The rocker arm side includes a part located away from the receiving portion. The distal end of the extending portion serves as an engagement portion engaging the rocker arm side part.

Abstract: A lever-type cam follower for a valve train of an internal combustion engine, the cam follower having two side walls which are connected to each other through a crossbar on whose underside, on one end, a support for a gas exchange valve is disposed, the crossbar having a recess through which a roller extends, the roller is supported via a bearing on a pin seated in the side walls, wherein the roller is so narrow that outer front ends of the roller are clearly spaced from and out of contact with longitudinal surfaces of the recess, one guide extension projects from each of the longitudinal surfaces towards a central longitudinal plane of the cam follower, and the roller is guided on inner sides of the at least one guide extension.

Abstract: According to the invention this object is attained by a rocker arm for actuating at least one gas exchange valve of an internal combustion engine having an elongated lever body with a floor and with side walls angled away therefrom, wherein a first end section of the lever body has a cup formed in the floor for a support element, and in that a section near the center is provided with a cam engagement surface and in that a second end section of the lever body has a bottom contact surface for a valve stem end of the gas exchange valve, wherein a crossbar extends between the section near the center and the second end section, and wherein the bottom contact surface for the valve stem end has a first stamping toward the top side of the rocker arm for a direct fine enclosure of the valve stem end, and wherein the crossbar has a second stamping whose shape is matched to the valve stem end.

Abstract: A valve control synchronizing apparatus for an internal combustion engine for controlling opening and closing operations of an engine valve includes a synchronizing pin assembly selectively transferring pivoting movement from one or both of first and second adjacent rocker arms to a central rocker arm. The synchronizing pin assembly is received in a bore defined through the central rocker arm and at least partially into each of the first and second rocker arms. The synchronizing pin assembly bridges between the first rocker arm and the central rocker arm to transfer pivoting movement of the first rocker arm to the central rocker arm and bridges between the second rocker arm and the central rocker arm to transfer pivoting movement from the second rocker arm to the central rocker arm.

Abstract: An energy extraction system for a rotational surface including a drive mechanism having a rotational axis and configured to rotatably couple to the rotational surface and an energy extraction mechanism coupled to the drive mechanism. The drive mechanism includes a cam rotatable about the rotational axis and an eccentric mass coupled to the cam that offsets a center of mass of the drive mechanism from the rotational axis, the eccentric mass cooperatively formed by a first and a second section, the eccentric mass operable between a connected mode wherein the first and second sections are adjacent and a disconnected mode wherein the first and second sections are separated. The energy extraction mechanism is connected to the cam and is statically coupled to the rotating surface, wherein the energy extraction mechanism configured to extract energy from relative rotation between the energy extraction mechanism and the cam.

Abstract: The present disclosure relates to a rocker arm shaft and a rocker arm shaft/bush assembly including a rocker arm shaft, and a rocker arm bush which encloses the rocker arm shaft, in which the rocker arm shaft has a surface on which minutely processed concave-convex portions are formed, thereby achieving excellent lubricative characteristics and as a result having excellent abrasion resistance.

Abstract: The present invention provides a valve actuation system comprising a valve train for actuating a valve, the valve train including actuating elements and a valve lash, and a valve lash adjustment system for adjusting the valve lash, wherein the valve train and the valve lash adjustment system do not share any common actuating elements.

Abstract: A cam follower assembly includes a housing. The cam follower assembly includes a first cam follower and a second cam follower to contact a cam surface. The cam follower assembly includes a first holding element coupled to the first cam follower, and a second holding element coupled to the second cam follower. The second holding element is assembled with the first holding element and received in an opening of the housing, where the first holding device moves relative to the second holding device. An adjusting element of compressible material determines the relative movement between the first holding device and the second holding device. The first cam follower moves relative to the second cam follower according to the relative movement between the first holding element and the second holding element. The first cam follower and the second cam follower maintain contact with the cam surface according to their relative movement.

Abstract: A cam follower for a high-pressure fuel pump of an internal combustion engine, which has a cam roller that is accommodated in a pocket of the cam follower. The cam roller has a bore and the bore is mounted by on a pin which is seated at the ends in receptacles of opposite walls of the pocket. The cam roller runs with its end sides directly in front of the walls. Each end side of the cam roller takes the form of an outer surface of a spherical zone, and each wall is smooth and straight, at least in the region of its run-on piece at the respective end side of the cam roller.

Abstract: A roller seating device has a hollow-cylindrical element (1) in which a roller (4) is received in seats (8, 10) perpendicular to a center axis (6) of the hollow-cylindrical element (1). A securing element (12) is configured and arranged to couple in a form-fit to the hollow-cylindrical element (1) in the interior (14) of the hollow-cylindrical element (1) in a direction that is axial and rotatory with respect to the center axis (6) of the hollow-cylindrical element (1) and in such a manner as to fix the roller (4) on its faces (16, 18) axially to the center axis (6) of the roller (4).

Abstract: A cam follower is affixed to a rotary component that is in mechanical communication with a rotary source such that the cam follower travels along a path when the first rotary source is operating. The cam follower is in mechanical communication with a mechanical component such that, when the cam follower is engaged with a retract dwell section of either of a dynamic cam or a static cam, the mechanical component is retracted. The static cam may be positioned to allow the mechanical component to retract for a predetermined portion of the path.

Abstract: A roller tappet intended for use a) in a high pressure fuel pump; b) in a valve train of an internal combustion engine; c) in an engine such as an axial piston engine or a radial piston engine; or d) generally for a pump/compressor of an axial piston type or of a radial piston type.

Abstract: The present invention provides to a rocker arm apparatus for cylinder deactivation with a new structure for increasing fuel efficiency in a gasoline engine. For this, the present invention provides a rocker arm apparatus for cylinder deactivation including: a rocker arm; a restoring spring supported at the bottom of a rear end portion of the rocker arm; a roller coupled to the rocker arm to be pressed by a cam; a pair of rocker shaft assemblies each including first and second rocker shafts, and a connecting rod integrally connecting the first and second rocker shafts; a pair of rocker shaft support members connected to the rocker arm by means of the first and second rocker shafts; and a transfer member for controlling the rocker shaft assembly.

Abstract: A machine element that has a surface with an isotropic structure that is formed by a coating, and is subjected to rolling or sliding stress. The coating on the surface is by a PVD process, and the surface brushed with a tool while supplying a cooling lubricant during the brushing such that no chemical reaction takes place between the tool and the machine element.

Abstract: A hydraulic lash adjuster capable of retaining a Large amount of hydraulic oil in a reservoir communicated with a high-pressure chamber when the engine is stopped. The hydraulic lash adjuster including: a cylindrical body (24) having an upper open end, a closed bottom, and a second oil supply hole (27a) formed in the sidewall of the cylindrical body; and a plunger having a top end serving as a plunging end, a sidewall, a bottom end, a high pressure chamber (29) at the lower bottom, and a first oil supply hole (24b) formed in the sidewall, the plunger being slidabic on the inner wall of the body. The plunger has a reservoir (28) that communicates with an external oil supply line (32) via the first oil supply hole (24b) and the second oil supply hole (27a).

Abstract: A link apparatus includes a cam plate, a lever and an accommodation member. The cam plate has a cam groove. The lever has a roller engaged with the cam groove and a pin which is inserted through a center of the roller so that the roller is rotatably supported on the pin. The accommodation member accommodates the cam plate and the lever. The accommodation member and the pin have a distance “A” therebetween. The roller has a thickness “B” along an axial direction of the pin. The value of the distance “A” is smaller than the value of the thickness “B”.

Abstract: The finger follower employs two independent lost motion arms and a rod which moves longitudinally to lock both arms. The rod is transversely mounted in the follower. In order to avoid premature locking, each arm has a chamfered surface on a top wall to force the rod out of engagement with the arm during upward movement of the arms, to protect premature movement of the rod from an unlocked position to a locked position.