Abstract: An engine brake rocker arm assembly is operable in an engine drive mode and an engine braking mode and selectively opens first and second exhaust valves. The engine brake rocker arm assembly includes an exhaust rocker arm configured to rotate about a rocker shaft, an engine brake capsule assembly movable between (i) a locked position configured to perform an engine braking operation, and (ii) an unlocked position that does not perform the engine braking operation, and a hydraulically controlled actuator assembly configured to selectively move the engine brake capsule assembly between the first and second positions.

Abstract: An engine brake rocker arm assembly is operable in an engine drive mode and an engine braking mode and selectively opens first and second exhaust valves. The engine brake rocker arm assembly includes an exhaust rocker arm configured to rotate about a rocker shaft, an engine brake capsule assembly movable between (i) a locked position configured to perform an engine braking operation, and (ii) an unlocked position that does not perform the engine braking operation, and a hydraulically controlled actuator assembly configured to selectively move the engine brake capsule assembly between the first and second positions.

Abstract: An engine brake rocker arm assembly is operable in an engine drive mode and an engine braking mode and selectively opens first and second exhaust valves. The engine brake rocker arm assembly includes an exhaust rocker arm configured to rotate about a rocker shaft, an engine brake capsule assembly movable between (i) a locked position configured to perform an engine braking operation, and (ii) an unlocked position that does not perform the engine braking operation, and a hydraulically controlled actuator assembly configured to selectively move the engine brake capsule assembly between the first and second positions.

Abstract: A switching rocker arm comprises an outer arm having a pair of integrally formed axles extending outwardly therefrom and an inner arm pivotally secured to the outer arm. A is latch slidably connected to the outer arm and is configured to selectively extend to engage the inner arm. An inner roller is configured on the inner arm, and a pair of outer rollers is mounted on the respective integrally formed axles on the outer arm. A rocker arm for variable valve lift comprises an outer arm comprising outer arm portions, rollers mounted in a cantilevered manner to the outer arm portions, and an inner arm seated between the outer arm portions, the inner arm comprising an inner roller. A pivot axle connects the outer arm and the inner arm. The inner arm and the outer arm are pivotable with respect to one another about the pivot axle.

Abstract: A rocker arm assembly operable in a first mode and a second mode, the rocker arm assembly selectively opening first and second engine valves based on rotation of a cam shaft having a first cam lobe and a second cam lobe, includes: a rocker shaft; a first rocker arm assembly having a first rocker arm that receives the rocker shaft and rotates around the rocker shaft in the first mode based on engagement with the first cam lobe; a second rocker arm assembly having a second rocker arm that receives the rocker shaft and rotates around the rocker shaft and selectively act on one of the first and second engine valves in the second mode based on selective engagement with the second cam lobe; and a biasing assembly that cooperates with the second rocker arm to bias the second rocker arm to a neutral position.

Abstract: A valve train assembly includes at least a number of exhaust valves; at least one camshaft with at least a pair of a primary lift cam and an engine brake lift cam. A number of rocker arms each include a cam follower for following one of the primary lift cam and the engine brake lift cam. One rocker arm includes a cam follower following an engine brake lift cam. The rocker arm is provided with an engine brake capsule. Various biasing assemblies are disclosed that cooperate with one of the rocker arms of which the cam follower follows an engine brake lift cam to accommodate mechanical lash.

Abstract: An actuation transmission apparatus for actuating a latching arrangement for latching and unlatching a first body and a second body of a switchable valve train component of an internal combustion engine, the latching arrangement being biased from an unlatched position where the first body and the second body are unlatched towards a latched position where the latching arrangement latches the first body and the second body together, the actuation transmission apparatus including: a shaft rotatable by an actuation source; a contacting element for contacting the latching arrangement; and a biasing device for biasing the contacting element rotationally with respect to the shaft. In use, the biasing device becomes biased by the shaft when the actuation source rotates the shaft when the actuation source attempts to actuate the latching arrangement to the unlatched position, via the contacting element, when the latching arrangement is in an un-actuatable state.

Abstract: A method of cold forming an outer arm of a rocker arm assembly in a cold forming machine includes providing a slug having a first end and a second end, extruding the slug at the first end to establish two different widths of the slug, compressing the slug to form an upper angled surface and a lower angled surface at the second end, and compressing the slug to form an inner arm window defined by a pair of side walls and a pair of end walls.

Abstract: A valve train assembly includes at least a number of exhaust valves; at least one camshaft with at least a pair of a primary lift cam and an engine brake lift cam. A number of rocker arms each include a cam follower for following one of the primary lift cam and the engine brake lift cam. One rocker arm includes a cam follower following an engine brake lift cam. The rocker arm is provided with an engine brake capsule. Various biasing assemblies are disclosed that cooperate with one of the rocker arms of which the cam follower follows an engine brake lift cam to accommodate mechanical lash.

Abstract: An actuation transmission apparatus for actuating a latching arrangement for latching and unlatching a first body and a second body of a switchable valve train component of an internal combustion engine, the latching arrangement being biased from an unlatched position where the first body and the second body are unlatched towards a latched position where the latching arrangement latches the first body and the second body together, the actuation transmission apparatus including: a shaft rotatable by an actuation source; a contacting element for contacting the latching arrangement; and a biasing device for biasing the contacting element rotationally with respect to the shaft. In use, the biasing device becomes biased by the shaft when the actuation source rotates the shaft when the actuation source attempts to actuate the latching arrangement to the unlatched position, via the contacting element, when the latching arrangement is in an un-actuatable state.

Abstract: The presently disclosed subject matter is directed to an apparatus for releasably sealing a pipe. Particularly, the apparatus comprises a bar that includes an interior, an exterior, a first end that includes external threads, and a second end that includes a stop. The device further comprises a sleeve positioned over a portion of the bar, and a coupling comprising internal threads that couple to the bar external threads. The device includes a compressible gasket sandwiched between first and second adaptors. Advancement of the coupling over the bar external threads increases pressure on the sleeve, which compresses the gasket between the first and second adaptors.

Abstract: A rocker arm assembly operable in a first mode and a second mode, the rocker arm assembly selectively opening first and second engine valves based on rotation of a cam shaft having a first cam lobe and a second cam lobe, includes: a rocker shaft; a first rocker arm assembly having a first rocker arm that receives the rocker shaft and rotates around the rocker shaft in the first mode based on engagement with the first cam lobe; a second rocker arm assembly having a second rocker arm that receives the rocker shaft and rotates around the rocker shaft and selectively act on one of the first and second engine valves in the second mode based on selective engagement with the second cam lobe; and a biasing assembly that cooperates with the second rocker arm to bias the second rocker arm to a neutral position.

Abstract: A valve train assembly includes at least a number of exhaust valves; at least one camshaft with at least a pair of a primary lift cam and an engine brake lift cam. A number of rocker arms each include a cam follower for following one of the primary lift cam and the engine brake lift cam. One rocker arm includes a cam follower following an engine brake lift cam. The rocker arm is provided with an engine brake capsule. Various biasing assemblies are disclosed that cooperate with one of the rocker arms of which the cam follower follows an engine brake lift cam to accommodate mechanical lash.

Abstract: An engine brake rocker arm assembly is operable in an engine drive mode and an engine braking mode and selectively opens first and second exhaust valves. The engine brake rocker arm assembly includes an exhaust rocker arm configured to rotate about a rocker shaft, an engine brake capsule assembly movable between (i) a locked position configured to perform an engine braking operation, and (ii) an unlocked position that does not perform the engine braking operation, and a hydraulically controlled actuator assembly configured to selectively move the engine brake capsule assembly between the first and second positions.

Abstract: An engine roller lifter for use in a leak-valvetrain of an internal combustion engine includes a body, a roller and an anti-rotation plug. The body includes an outer peripheral surface configured for sliding movement in a bore provided in the engine. The bore is supplied oil by an oil passage communicating therewith. The body defines an opening. The roller bearing is rotatably mounted to the body and is configured for rolling contact with an engine camshaft. The anti-rotation plug is received at the opening and has a plug body including an anti-rotation protrusion that extends radially beyond an outer peripheral surface of the plug body. The anti-rotation plug can be staked into the opening of the body.

Abstract: A rocker arm assembly includes an outer arm having first and second low lift lobe contacting surfaces, an inner arm, and a latch assembly. The inner arm includes first and second opposed sidewalls extending between a first end and a second end, and a high lift lobe contacting surface disposed between the first and second opposed sidewalls. The first end is pivotably secured to the outer arm and operably associated with an engine valve, and the second end is operably associated with a lash adjuster and defining a latch bore. The latch assembly is movable between a first configuration and a second configuration. In the first configuration, the latch assembly engages the outer arm such that the outer arm rotates with the inner arm, and in the second configuration, the latch assembly disengages the outer arm such that the outer arm rotates independently from the inner arm.

Abstract: The presently disclosed subject matter is directed to an apparatus for releasably sealing a pipe. Particularly, the apparatus comprises a bar that includes an interior, an exterior, a first end that includes external threads, and a second end that includes a stop. The device further comprises a sleeve positioned over a portion of the bar, and a coupling comprising internal threads that couple to the bar external threads. The device includes a compressible gasket sandwiched between first and second adaptors. Advancement of the coupling over the bar external threads increases pressure on the sleeve, which compresses the gasket between the first and second adaptors.

Abstract: The presently disclosed subject matter is directed to an apparatus for releasably sealing a pipe. Particularly, the apparatus comprises a bar that includes an interior, an exterior, a first end that includes external threads, and a second end that includes a stop. The device further comprises a sleeve positioned over a portion of the bar, and a coupling comprising internal threads that couple to the bar external threads. The device includes a compressible gasket sandwiched between first and second adaptors. Advancement of the coupling over the bar external threads increases pressure on the sleeve, which compresses the gasket between the first and second adaptors.