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| Number | Title | Issue Date |
| 8176887 | Electromagnetic actuating device An electromagnetic actuating device comprising a plurality of electromagnetic actuation units (10, 12, 14), which can be selectively controlled for exerting an actuating force on a corresponding plurality of elongated tappet units (22, 24, 26) that are... | 05/15/2012 |
| 8166941 | Device for switching activation of a hydraulic valve play equalization element A device for switching activation of a hydraulic valve play equalization element for setting of a maximal stroke or a zero stroke on a valve of an internal combustion engine, has a switching element for locking and unlocking the housing of the valve play equalizatio... | 05/01/2012 |
| 8161929 | Switchable tappet The invention proposes a switchable tappet (1) of a valve train of an internal combustion engine, said tappet comprising a hollow cylindrical housing (3) comprising a bottom (2), an inner element (5) being guided for relative axial displa... | 04/24/2012 |
| 8109246 | Camshaft damping mechanism and method of assembly A camshaft damping mechanism may include first and second housing members and a biasing member. The first housing member may be engaged with a camshaft. The second housing member may be slidably coupled to the first housing member and may abut an engine structure. T... | 02/07/2012 |
| 8104442 | Mechanical roller tappet for an internal combustion engine A mechanical roller tappet (1a, 1b) comprising a tappet housing (2a, 2b) shaped out of sheet metal, a drive roller (3) actuable by a cam (9) and an axle (5a, 5b) on whi... | 01/31/2012 |
| 8100101 | Fuel supply pump A fuel supply pump includes a housing, a shaft in a case, a cam in the case formed eccentrically with respect to the shaft to rotate with the shaft, a tappet on an outer circumferential side of the cam movable in a vertical direction, and a plunger reciprocating wit... | 01/24/2012 |
| 8082896 | Switchable support element for a valve train of an internal combustion engine A switchable support element for a valve train of an internal combustion engine, comprising a housing that can be arranged with an outer peripheral wall in a reception of the internal combustion engine, an axially displaceable pressure piston extending in a bore of ... | 12/27/2011 |
| 8079338 | Self adjusting valve catch with valve seating control A variable valve actuation system to actuate and control the seating velocity of an internal combustion engine valve is disclosed. The system comprises: a housing having a bore formed therein; an outer piston slidably disposed in the bore, said outer piston having a... | 12/20/2011 |
| 8061320 | Lift transmitting component and method of manufacturing such a component A lift transmitting component (1), particularly for a gas exchange valve train or a fuel pump drive of an internal combustion engine, and a method of manufacturing such a lift transmitting component comprising a housing (2) and a bearing pin (6)... | 11/22/2011 |
| 8037857 | Hydraulic support element for a switchable cam follower of a valve drive of an internal combustion engine A hydraulic support element for a switchable cam follower of a valve drive of an internal combustion engine, which has a pot-like housing with a bore, a pressure piston formed in one piece with an external casing and head projecting over an edge of the housing and a... | 10/18/2011 |
| 8001940 | Switchable bucket tappet A switchable bucket tappet for a valve drive of an internal combustion engine, which has a bucket base body with a ring-shaped base guided by a skirt projecting from the outer edge of the base in a bore of the engine. A lifting cam acts on the base and a hollow cyli... | 08/23/2011 |
| 7918202 | Variable valve lift apparatus A variable valve apparatus includes a high lift cam and a low lift cam in parallel with the high lift cam. A tappet body includes a high lift tappet body that constantly contacts the high lift cam, and a low lift tappet body that is disposed in the high lift tappet ... | 04/05/2011 |
| 7891329 | Compact lash adjuster feed channel apparatus The apparatus of the present invention provides a lash adjuster feed channel for an engine assembly. The engine assembly includes first and second sets of hydraulic lash adjusters responsive to a variation in hydraulic fluid pressure to cause a variation in lift of ... | 02/22/2011 |
| 7882815 | Hydraulic cam follower A hydraulic cam follower for simultaneous actuation of several equal-acting gas-exchange valves, especially for a tappet pushrod valve train of an engine, includes an outer part, whose base forms a cam contacting surface, and from whose head hollow-cylindrical guide... | 02/08/2011 |
| 7878169 | Cam roller pin with transverse grooves A roller pin for carrying a cam roller in a tappet assembly is provided. The roller pin providing reduced run in time and reduced peak and localized contact pressure between the cam roller and roller pin. The roller pin comprises a substantially cylindrical shaft ha... | 02/01/2011 |
| 7845326 | Variable valve lift apparatus A variable valve lift apparatus according to an exemplary embodiment of the present invention includes an inner body contacting an input cam, an outer body connected with a valve, a lost motion spring disposed between the inner body and the outer body for supplying ... | 12/07/2010 |
| 7827953 | Switchable support element for a valve train of an internal combustion engine The invention proposes a switchable support element (1) for a valve train of an internal combustion engine, said support element comprising a housing (2) in whose bore (3) an axially displaceable inner element (4) is received, a coupling ... | 11/09/2010 |
| 7827952 | Variable tappet A variable tappet includes a tappet body; a variable portion in the tappet body, configured to open and close a valve; and a control portion to maintain the variable portion in either a first state, at which it can open and close the valve, and a second state, at wh... | 11/09/2010 |
| 7819100 | Internal combustion engine with intake valves having a variable actuation and a lift profile including a constant lift boot portion An internal combustion engine is equipped with a variable actuation system for the intake valves, including a chamber of fluid under pressure interposed between the intake valve and the respective controlling cam, and a solenoid valve whose opening causes the pressu... | 10/26/2010 |
| 7793630 | Switchable component for a valve drive of an internal combustion engine A switchable component (1) for a valve train of a combustion engine is provided, such as a roller tappet, with a housing (2), in whose borehole (3) an inner element (4) runs that can move relative to the housing in the axial direction. At... | 09/14/2010 |
| 7784439 | Variable valve lift apparatus A variable valve lift apparatus according to an exemplary embodiment of the present invention may include an outer part, an inner part disposed in the outer part and connected to a valve, a latching part that is disposed in the outer part and selectively connects th... | 08/31/2010 |
| 7748359 | Tappet assembly In one aspect, the present disclosure is directed to a tappet assembly for a machine. The assembly may include a tappet body, a pin fixedly mounted in the tappet body, and a substantially cylindrical roller mounted about the pin. The roller may have a substantially ... | 07/06/2010 |
| 7685984 | Mechanical lash ring for a switchable valve train member A switchable valve train member, such as a deactivating valve lash adjuster or a deactivating hydraulic valve lifter, including a pin housing slidably disposed within an axial bore in a body. A transverse bore in the pin housing contains a retractable locking pin th... | 03/30/2010 |
| 7681543 | Tappet apparatus A tappet apparatus cooperates with a valve and a cam. The apparatus includes a case to reciprocate motion of the cam; and a locking unit in the ease, movable between an activated position at which the valve reciprocates motion of the case, and a deactivated position... | 03/23/2010 |
| 7673607 | Tappet carrier for barrel engine A tappet carrier for a barrel type internal combustion engine includes a body having a central bore that is coaxial with a camshaft of a barrel engine. The tappet carrier further comprises a plurality of radially extending bores that are continuous with the central ... | 03/09/2010 |
| 7658173 | Tappet for an internal combustion engine A tappet for an internal combustion engine is formed from a high-carbon, bearing grade steel. The high-carbon, bearing grade steel has a relatively high surface fatigue strength that provides the tappet with the ability to absorb a relatively large contact stresses ... | 02/09/2010 |
| 7637237 | Switchable double tappet A switchable double tappet (1) is provided, especially for a tappet-push rod valve train of an internal combustion engine, with a cylindrical housing (2), which is arranged so that it oscillates via its outer casing (3) in a guide (4) in ... | 12/29/2009 |
| 7621244 | Titanium alloy tappet, manufacturing method thereof, and jig used in manufacturing tappet A titanium alloy tappet that is slidable at a high speed is provided by covering shortcomings of lightweight and high-strength titanium alloy. A surface 1A of at least a slidable portion of the tappet 1 for use with a valve system is subjected to a car... | 11/24/2009 |
| 7617807 | Engine and valvetrain with dual pushrod lifters and independent lash adjustment A multiple cylinder internal combustion engine having a camshaft-driven valvetrain with a camshaft disposed within an engine block includes at least two intake and/or exhaust valves with a pair of valves operated by a common camshaft lobe and a cam follower. The val... | 11/17/2009 |
| 7610888 | Non-guided tappet and fuel injector using same A fuel injector includes an injector body having an internal surface and an external surface. A tappet assembly includes a non-guided tappet and a plunger assembly, and is mounted on the injector body. The tappet assembly is movable with respect to the injector body... | 11/03/2009 |
| 7610886 | Force transmitting arrangement for a valve drive of an internal combustion engine A force transmitting device (4) for a valve drive (1) of an internal combustion engine (2) with a hydraulic valve lash compensating device (6) is provided. The force transmitting device (4) has a hollow cylindrical compensating pis... | 11/03/2009 |
| 7610887 | Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface A valve-deactivation hydraulic valve lifter including a recessed face on the pin housing for making contact with the a crowned surface region of a roller follower. The lifter includes a pin housing that is slidably disposed within an axial bore in a lifter body. Pin... | 11/03/2009 |
| 7568461 | Tappet roller end shape for improved lubrication and combination with fuel pump and engine Improved end shapes are provided for laterally confined tappet rollers in high pressure fuel pumps and similar applications for improving lubrication and wear performance when rotating against a cylindrical surface. The roller ends are provided with annular end face... | 08/04/2009 |
| 7556006 | Valve mechanism of engine To provide an inner shim that is unlikely to fall off from a spring retainer even when an anomalous operation of a valve occurs. A spring retainer fixed to the upper end portion of a valve shaft has a shim-attachment hole. An inner shim is fitted into the shim-attac... | 07/07/2009 |
| 7556005 | Automatic tappet clearance adjusting device and method An automatic tappet clearance adjuster comprising a unit for adjusting the projection by advancing/retracting an adjust screw from the forward end of a rocker arm, a section for detecting the torque by rotating the adjust screw, and a control mechanism section for c... | 07/07/2009 |
| 7530339 | Durable valve lifter for combustion engines and methods of making same A valve system lifter for combustion engines includes a hard metal face pad connected to a lower-grade metal lifter body. The connecting material is one or more materials that are different from both the lifter body and the face pad. Preferably, the connecting mater... | 05/12/2009 |
| 7484488 | Dual valve lift blip with single cam lobe for gasoline engines A tappet assembly includes a first follower engaging a cam lobe profile, and a second follower engaging an engine poppet valve. A latch member is operable to fix the first follower in an extended position, to provide a high lift condition. The first and second follo... | 02/03/2009 |
| 7478615 | Axial fixation of a spring support part of a switchable tappet The invention relates to an axial fixation (17) of a spring support part (9) of a switchable tappet (1) for direct transmission of a cam stroke to a tappet push-rod (7) of a valve drive of an internal combustion engine. The tappet (1 | 01/20/2009 |
| 7464677 | Compact lash adjuster feed channel apparatus The apparatus of the present invention provides a lash adjuster feed channel for an engine assembly. The engine assembly includes first and second sets of hydraulic lash adjusters responsive to a variation in hydraulic fluid pressure to cause a variation in lift of ... | 12/16/2008 |
| 7434557 | Hydraulic valve clearance compensation element A hydraulic reverse spring valve clearance compensation element (RSHVA) for a valve train of an internal combustion engine comprising: a housing (2), which has a blind bore (3), in which a piston (4) is guided ... | 10/14/2008 |
