Abstract: A method of manufacturing spring pallets of a switchable roller finger follower. The method includes the steps of forming the spring pallets of the roller finger follower as a single unit, forming a material web between the spring pallets, and separating the spring pallets apart from each other. Also, an intermediate assembly of the spring pallets of the roller finger follower is disclosed. The intermediate assembly includes a first spring pallet, a second spring pallet, and a material web which extends between the spring pallets, and adjoins the spring pallets together. Further, a method of manufacturing an inner arm of the switchable roller finger follower is disclosed in which the inner arm is formed by sheet metal, preferably by stamping.

Abstract: A roller finger follower is provided having a housing and two separate outer arms mounted at one end to a pivot axle that extends through the housing. A roller is mounted in the housing The outer arms extend longitudinally along sides of the housing and include high lift cam contact surfaces. The outer arms having an outer arm body and separately formed longitudinal body, retained on the outer arm body, the longitudinal body including the cam contact surface. The longitudinal body is formed of a high durability material or coated with a suitable coating, the outer arm body formed of a lower grade, lower cost material.

Abstract: A switchable roller finger follower is provided having an inner lever and two separate outer arms mounted at one end to a swing pivot axle that extends through the inner lever. A roller is mounted in the inner lever. The outer arms extend longitudinally along sides of the inner lever and include high lift cam contact surfaces. The inner lever includes a compression spring support extending out from each of the sides. The outer arms each include a corresponding spring support facing the respective spring support of the inner lever. A compression spring is located on each of the sides of the inner lever between the corresponding spring supports. A coupling arrangement is located between the inner lever and the outer arms which in a locked position, locks the outer arms in position on the inner lever, and in an unlocked position, allows the outer arms to pivot.

Abstract: An electromagnetic hydraulic valve or solenoid having an electric plug, housing, magnetic coil, armature and armature pin, valve body and associated valve seat and valve plate and associated valve seat, the valve plate axially retained, but, freely floating laterally within the housing, such that the valve plate and valve plate seat is movable to align with the valve body and valve body seat.

Abstract: A switching roller finger follower, including: a housing with a first wall with a first opening, a second wall with a second opening, and an interior space at least partially formed by the walls; first and second outer arms; and a locking pin disposed in the openings and including a longitudinal axis, a body, and first and second protrusions extending radially outward from the body, formed of a same piece of material as the body, and at least one of which is located within the space. A respective portion of at least one of the first or second protrusions is aligned with the first or second wall in a direction parallel to the first longitudinal axis. The locking pin is displaceable such that: in a locked mode, the locking pin blocks pivoting of the arms; and in an unlocked mode, the locking pin is free of contact with the arms.

Abstract: A switching roller finger follower, including: first and second rotatable outer arms; and a locking mechanism including a locking pin with a first outside diameter and first and second ends. The locking mechanism includes first and second locking sleeves: separate from the locking pin; fixedly secured to the first and second ends, respectively; and having second and third outside diameters, respectively, larger than the first outside diameter. The locking pin is displaceable such that: in a locked mode, the first and second locking sleeves contact the first and second outer arms, respectively, to block rotation of the first and second outer arms in a first rotational direction; and in an unlocked mode, the first and second locking sleeves are free of contact with the first and second outer arms, respectively.

Abstract: The finger follower employs two independent lost motion arms and a coupling device that locks both arms. Stops are provided both for the roller axle and for the arm swing. The axle stop and the end stops for the arm swing are positioned on the arm and the outer sidewall of the inner lever.

Abstract: An electromagnetic hydraulic valve or solenoid having an electric plug, housing, magnetic coil, armature and armature pin, valve body and associated valve seat and valve plate and associated valve seat, the valve plate axially retained, but, freely floating laterally within the housing, such that the valve plate and valve plate seat is movable to align with the valve body and valve body seat.

Abstract: A finger lever is provided for a valve train of an internal combustion engine. The finger lever comprises an inner lever, at least one arm pivotally coupled to the inner lever, and a coupling device operatively displaceable to control movement of the at least one arm relative to the inner lever. The coupling device includes a slide and a piston disposed in a longitudinal bore of the inner lever, the piston having an entraining slot in which at least part of the slide is received, and at least one biasing member arranged to bias the piston relative to the inner lever. The slide is constructed to be displaced in a coupled position or an uncoupled position. In the coupled position the slide is entrained by the at least one arm, and in the uncoupled position the slide is not entrained by the at least one arm.

Abstract: A finger lever is provided for a valve train of an internal combustion engine. The finger lever comprises an inner lever, at least one arm pivotally coupled to the inner lever, and a coupling device operatively displaceable to control movement of the at least one arm relative to the inner lever. The coupling device includes a slide and a piston disposed in a longitudinal bore of the inner lever, the piston having an entraining slot in which at least part of the slide is received, and at least one biasing member arranged to bias the piston relative to the inner lever. The slide is constructed to be displaced in a coupled position or an uncoupled position. In the coupled position the slide is entrained by the at least one arm, and in the uncoupled position the slide is not entrained by the at least one arm.

Abstract: A switchable roller finger follower is provided having an inner lever and two separate outer arms mounted at one end to a swing pivot axle that extends through the inner lever. A roller is mounted in the inner lever. The outer arms extend longitudinally along sides of the inner lever and include high lift cam contact surfaces. The inner lever includes a compression spring support extending out from each of the sides. The outer arms each include a corresponding spring support facing the respective spring support of the inner lever. A compression spring is located on each of the sides of the inner lever between the corresponding spring supports. A coupling arrangement is located between the inner lever and the outer arms which in a locked position, locks the outer arms in position on the inner lever, and in an unlocked position, allows the outer arms to pivot.

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.

Abstract: A switchable finger lever for a valve train of an internal combustion engine, said finger lever comprising an inner lever comprising on an underside on one end, a support for a gas exchange valve and on another end, a contact surface for a head of a support element, said inner lever being flanked by outer arms which are articulated for pivoting relative to the inner lever on a side of the one end, at least each of said outer arms comprising on an upper side, a cam contacting surface, said inner lever comprising directly next to the contact surface a coupling device for an optional connection of the outer arms to the inner lever, said coupling device comprising a cross-bore in which two coupling slides are arranged diametrically opposite each other, which coupling slides for effecting coupling engage partially in or under an entraining surface arranged on the respective outer arm ending in this region, and the at least one restoring spring being likewise arranged in the region of the another end while being cl

Abstract: The invention proposes a switchable finger lever (1) comprising an inner lever (2) comprising on one end (4), a support (5) for a gas exchange valve and on another end (6), a contact surface (7) for a head of a support element, said inner lever (2) comprising on the one end (4), pivotable outer arms (8) made separately from each other, which outer arms (8) comprise on their upper sides (10), contacting surfaces (11) for high lift cams, a coupling device (12) comprising a coupling slide (13) for simultaneously connecting the outer arms (8) to the inner lever (2) being seated in a section of the another end (6) in the inner lever (2), which coupling slide (13) is seated in an oblong hole (14) extending transversely through the inner lever (2) as also in longitudinal direction of the finger lever (2), the coupling slide (13) comprises two end portions (15) which protrude beyond the outer walls (9),and for effecting coupling, the coupling slide (13) can be displaced with the two end portions (15) partially under

Abstract: A switchable finger lever for a valve train of an internal combustion engine, said finger lever comprising an inner lever comprising on an underside on one end, a support for a gas exchange valve and on another end, a contact surface for a head of a support element, said inner lever further comprising on the one end, axle stubs protruding on two sides of the inner lever, a first outer arm extending for pivoting relative to the inner lever on one of the axle stubs and a second outer arm extending for pivoting relative to the inner lever on another one of the axle stubs, said outer arms extending in direction of the another end while flanking outer walls of the inner lever and being made as separate parts from each other, a cam contacting surface being arranged on an upper side of each outer arm while, in the region of the another end, a coupling device for an optional connection of the outer arms to the inner lever is seated in the inner lever, and a restoring spring means for each outer arm acts at one end ag

Abstract: A switchable cam follower of a valve train assembly of an internal combustion engine is proposed, with an external lever that encloses an internal lever with its arms, of which components, that can deviate from each other flexibly, run on an axis that is attached to a valve side end, and the internal lever on an underside on the valve side end possesses a mechanism for a gas exchange valve as well as a complementary surface at the other end for storage on a head of a support element. A special characteristic is that guidance plates for the gas exchange valve come out from the underside of the external lever. That way, the switchable cam follower can be made narrower at least on the valve side. In addition, development of the mechanism for the gas exchange valve on the internal lever is simplified.

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.

Abstract: The finger follower employs two independent lost motion arms and a coupling device that locks both arms. Stops are provided both for the roller axle and for the arm swing. The axle stop and the end stops for the arm swing are positioned on the arm and the outer sidewall of the inner lever.

Abstract: The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body. The torsional lost motion springs have a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.

Abstract: The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body. The torsional lost motion spring has two helical parts each with a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.