| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123900410 | Individually fulcrumed | 13 |
| 20080196682 | Connection Element For The Secure Fixing Of A Lever-Type Cam Follower - Connecting element ( | 08-21-2008 |
| 20120037107 | SINGLE LOBE DEACTIVATING ROCKER ARM - 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. | 02-16-2012 |
| 20120097123 | FINGER LEVER - The invention proposes a finger lever ( | 04-26-2012 |
| 20120174886 | SWITCHABLE FINGER LEVER - A switchable finger lever for a valve drive of an internal combustion engine having an interior lever encompassed by arms of an exterior lever, with a joint axle extending through the levers so they are relatively pivotal. A stub projects from the axle at each exterior side, with the respective stub being encompassed by a coil section of a pivot pin spring, having one leg acting upon the exterior lever and another leg acting upon the interior lever to pre-load the levers relative to each other, with the coil section encompassing a bush encasing an exterior casing of the stub. The bush encompasses the stub with a clearance fit and, for fixation of the axle, an annular groove with a safety ring is located inside the bush bore, and engages a radially inwardly located groove in the exterior casing of the stub allowing the axle to be disassembled without destruction. | 07-12-2012 |
| 20120240889 | MECHANICAL VARIABLE VALVE ACTUATION SYSTEM FOR 2-STROKE AND 4-STROKE ENGINE OPERATIONS - The invention relates to a mechanical variable valve actuation (VVA) system for the control and actuation of the valves of an internal combustion engine. The system according to the present invention realizes the control of the valve lift by means of a fixed pivot part for an oscillating rocker suitable to actuate the valve, the oscillating rocker being actuated by means of an eccentric control element. | 09-27-2012 |
| 20120304948 | ROCKER COVER SYSTEM - An internal combustion engine with an overhead valve configuration includes multiple integral bosses, an exhaust valve rocker stud including an upper portion and a lower portion, an intake valve rocker stud including an upper portion and a lower portion, a head plate supported by the integral bosses such that an air cooling passage is formed between the head plate and the cylinder head, where the head plate is fastened to the cylinder head by the lower portions of the exhaust valve rocker stud and the intake valve rocker stud, and a cover secured to the head plate such that the cover and the head plate enclose the upper portions of the exhaust valve rocker stud and the intake valve rocker stud. | 12-06-2012 |
| 20140338621 | Lost Motion Reciprocation Splitter - A driver that reciprocates has its reciprocation divided into a non-actuating portion and an actuating portion. The driver in one embodiment positions a carrier that has two pins, each pin being slidably mounted in its slot on a housing. One of the pins is an output pin that may be linked to operatively position a valve of an internal combustion engine. The two slots are configured such that each pin, during its motion range, does effect a capture of the other pin such that the captured pin is generally stationary. When the output pin is captured, the driver reciprocation causes the non-output pin to perform a lost-motion traverse of its slot. When the non-output pin is captured, the driver reciprocation actuates the output pin. A linked pair of such embodiments driven by a single driver can thus alternately actuate two valves. | 11-20-2014 |
| 123900420 | Rotation prevention | 3 |
| 20110048352 | Compact Switchable Hydraulic Lash Adjuster with Hydraulic Lost Motion Assist - An improved deactivation hydraulic lash adjuster wherein the prior art lost motion spring or springs formerly located within the body of the DHLA and below the pin housing are either omitted completely or are reduced in length, spring force, and/or number and are augmented hydraulically, allowing a shorter, more compact lifter body and reduced overall lifter length. The prior art lost motion spring chamber becomes a hydraulic chamber connected to a new pressurized oil supply gallery containing an accumulator in the engine. An embodiment having no lost motion spring and solely hydraulic lost motion return can be even shorter than a spring-hydraulic hybrid because the potential hydraulic pressure to be brought against the pin housing is not a function of the length of the lost motion chamber, which length is limited only by the required displacement of the pin housing. | 03-03-2011 |
| 20120060782 | ROCKER ARM ASSEMBLY WITH INTEGRATED SUPPORT PIN ANTI-INVERSION FEATURE - A rocker arm assembly which has an anti-inversion part that prevents a support pin from inverting and, thus, ensuring proper orientation of the support pin, on which a rocker arm is rotatably mounted, is maintained. The anti-inversion part can be incorporated on the support pin, the inner sleeve or the outer sleeve and/or a combination of the support pin, the inner sleeve and/or the outer sleeve. | 03-15-2012 |
| 20130284137 | NESTED LOCKING MECHANISM FOR SWITCHABLE ROLLER FINGER FOLLOWER - 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. | 10-31-2013 |
| 123900430 | Lash adjustment at fulcrum | 3 |
| 20140283775 | RETENTION DEVICE FOR VALVE ACTUATING MECHANISM - A retention device for a valve actuating mechanism to secure a finger follower and lash adjuster together includes a ring member disposed in a groove of a movable piston of the lash adjuster. The retention device also includes a connecting member having a plurality of legs adapted to engage the finger follower and an intermediate base interconnecting the legs and adapted to be disposed below the ring member and about a portion of the lash adjuster to effect a free movement of the connecting member in all pivoted positions of the finger follower. | 09-25-2014 |
| 20160376935 | Valvetrain for an Engine - Valvetrain of an internal combustion engine, including a rocker support, a fulcrum, and a rocker. The rocker support is mounted to a cylinder head and fixed relative thereto. The rocker is positioned about the rocker support and partially in an axial aligning groove of the rocker support. The fulcrum is sandwiched between the rocker support and the rocker. The rocker oscillates about the fulcrum as forces are received and applied to a first and a second end of the rocker. | 12-29-2016 |
| 20160376937 | ROCKER ARM ASSEMBLY AND METHOD OF FORMING RETENTION ELEMENTS IN A ROCKER ARM - An assembly for a valvetrain having a valve, a lash adjuster, and a lobe. The assembly includes a shaft, a bearing supported by the shaft for engaging the lobe, and a rocker having a pad for the valve and a socket for the lash adjuster. Walls are disposed between the pad and socket, have inner and outer wall surfaces, and define a valley for the shaft. Upwardly-opening arc-shaped bearing surfaces are disposed longitudinally between the pad and socket spaced laterally from each other and support the shaft when the bearing engages the lobe. A retention element formed in each wall with a depressed portion spaced from the outer wall surface and a lip portion arranged under the depressed portion extends into the valley above the bearing surfaces such that the shaft is prevented from moving out of the valley in absence of engagement between the bearing and the lobe. | 12-29-2016 |
