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US20130014716 MECHANICAL BUCKET TAPPET  
A mechanical bucket tappet (1) for a valve driver of an internal combustion engine having a hollow cylinder-shaped wall (2) which is delimited at one frontal area (3) by a disk-like bottom (4)...
US20080314348 VALVE OPERATING SYSTEM AND ENGINE INTAKE CONTROL SYSTEM  
A valve operating system that includes a drive shaft, a drive lever that is fixedly provided thereon and can pivot in a direction of movement of a valve body, a follower arm that is fixedly...
US20120060783 VARIABLE VALVE LIFT APPARATUS  
A variable valve lift apparatus of an engine may include an inner tappet, an outer tappet centrally receiving the inner tappet, a latching unit inserted in the inner tappet and operated by a...
US20120073534 VALVE LIFTER FOR INTERNAL COMBUSTION ENGINE  
A valve lifter for an internal combustion engine includes a skirt portion formed in a tubular shape; and a crown portion formed integrally with an axially one end side of the skirt portion. The...
US20130213333 ROLLER TAPPET  
A roller tappet having a housing near whose drive side front end, two diametrically opposing flats receding from an outer wall of the housing are arranged, each of the two flats having a seat with...
US20110132305 VARIABLE TAPPET  
The present invention relates to a variable tappet, and the variable tappet may include an inner tappet body of which a latching member connecting hole is formed thereto, a protrude portion formed...
US20100012064 Valve lifter and surface treatment method thereof  
The present invention provides a valve lifter, including a buffer layer, a Me diamond-like carbon layer having a thickness of 0.3˜0.6 μm, and a diamond-like carbon layer having a thickness of...
US20090013950 DUAL VALVE LIFTER ASSEMBLY  
The dual valve lifter assembly has a dual valve lift with two hydraulic lash adjusters therein and a guide for orienting and preventing rotation of the dual valve lifter. The guide has four ledges...
US20050098134 Valve lifter for internal combustion engine  
A valve lifter for an automotive internal combustion engine. The valve lifter includes a main body formed of one of an aluminum alloy and an iron-based alloy as a base material and having a top...
US20080006233 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...
US20060144359 Nitrided valve lifter and producing method therefor  
A sliding surface (2) of a valve lifter (1) or a shim (3) is subjected to a gaseous nitriding to have a surface hardness of Hv 660 or higher and a thickness of a compound layer (6) of 1 to 5 μm....
US20130133621 Thrust Lubrication Strategy For Roller Lifters Of A Common Rail Fuel Pump  
A common rail fuel pump includes a cam shaft with at least one cam rotatably supported in a pump housing. A plurality of tappet assemblies are each reciprocatingly movable in the pump housing, and...
US20110265752 TAPPET  
A tappet (1) for a high-pressure fuel pump having a housing (2), the drive input side (7), which serves as a cam run-on face. The housing (2) incorporates a roller (8), wherein the drive output...
US20090090319 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...
US20090199800 Valve Lever Assembly Having A Switchable Valve Actuating Mechanism  
A valve lever assembly having a switchable valve actuating mechanism comprises a first follower surface for following a first cam, at least one second follower surface for following a second cam...
US20130340695 ROLLER LIFTER FOR INTERNAL COMBUSTION ENGINE  
A roller lifter for internal combustion engines is provided, which has higher rigidity of the lifter body, prevents cocking in the cylinder, and can achieve a size reduction. The roller lifter...
US20070209623 Lifter retainer  
A lifter retainer including a central body portion connected to both a left bank of lifter retaining arms and a right bank of lifter retaining arms. The lifter retainer may be adapted to engage a...
US20090126661 VARIABLE VALVE LIFT APPARATUS  
A variable valve lift apparatus includes a lift body that contacts a cam and a valve. The lift body has a first hole for receiving hydraulic pressure and a second hole for exhausting the hydraulic...
US20140048028 LIFTER GUIDE ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE  
A lifter guide includes a lifter guide body having an outer surface and an inner surface that extend from a first end to a second end. The inner surface defines at least one push rod passage. A...
US20120125277 CAM FOLLOWER ROLLER DEVICE, NOTABLY FOR A FUEL INJECTION PUMP  
Cam follower roller device, notably for an internal combustion engine fuel injection pump, comprising a tappet (12) and a roller (14) mounted to rotate on the tappet and intended to press against...
US20060027200 Valve lifter and forming and processing method therefor  
A forming and processing method for a valve lifter. The forming and processing method includes the steps of: (a) forming a hole in the valve lifter at a site where a cam is slidably contacted...
US20070125334 Roller Type hydrocushion mechanical tappet  
A tappet comprises a foot having a convex cam contact surface and an axially extending hub, a tappet body having a lower body portion with a lower axial bore formed therein to receive the axially...
US20090056659 DIRECT-ACTING TYPE VALVE LIFTER FOR INTERNAL-COMBUSTION ENGINES  
Objects: To provide a direct-acting type valve lifter that is simple in structure, involves a small number of components, and is capable of switching its valve lift between a high and a low lift....
US20090145383 VARIABLE VALVE SYSTEM  
A variable valve system includes a camshaft in which a first lobe having a first height and a second lobe having a second height that is higher than the first height from a rotational center axis...
US20100012065 MECHANICAL ROLLER TAPPET FOR AN INTERNAL COMBUSTION ENGINE  
The invention proposes 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 which...
US20050183684 Valve operating system in an internal combustion engine  
A valve operating system for an internal combustion engine has a rocker arm, a rocker actuation mechanism, a ball and socket joint, and a valve activation device. The rocker arm is connected to...
US20080271694 Limited travel hydraulic lifter and methods of assembly and use thereof  
A travel limited plunger for a hydraulic lifter for, among other purposes, use in racing and/or other high performance applications. In one variation, an existing retaining clip is replaced by a...
US20050217623 Cam follower  
A cam follower having a substantially cylindrical form with a cam engaging surface to a base of the cylinder and a pushrod engaging surface to the other end, is substantially hollow. A...
US20090178638 MULTIPLE AXLE TAPPET LIFTER ASSEMBLY  
The invention allows for a larger bronze axle outer diameter for increased contact area to carry system loads in tappet body assemblies of engine valve trains; thereby, improving wear and...
US20080115752 Engine valve lifter mechanism of internal combustion engine  
An upper surface of a head part of a valve lifter has a predetermined turn back portion at which, with a valuable valve control device kept controlled to induce a maximum lift of an engine valve,...
US20110052934 SLIDE PART  
There is provided a slide part used in an environment where there is a lubricant containing a molybdenum compound including a hard protective layer formed on an outermost surface of a substrate of...
US20090314236 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...
US20090151682 VARIABLE VALVE LIFT APPARATUS  
A variable valve lift apparatus according to an exemplary embodiment of the present invention includes a low lift cam, a high lift cam in parallel with the low lift cam, a low lift tappet body...
US20090159029 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...
US20090241870 VARIABLE INTAKE VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINE  
An intake valve assembly of an internal combustion engine that includes a combustion chamber and an intake passage. The intake valve assembly comprises an intake valve movable into and out of...
US20140245981 CAM FOLLOWER  
A cam follower for actuating at least one gas exchange valve of an internal combustion engine is provided, including a cam contact roller that is supported by a plain bearing on a pin (13). A...
US20070272185 HYDRAULIC LASH ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE  
A hydraulic lash adjuster for a valve train of an internal combustion engine is provided, with the hydraulic lash adjuster including a circular cylindrical housing in which a piston (22) is...
US20090288623 Continuously variable valve lift system for engines and controllling method thereof  
The present invention relates to a continuously variable valve lift system for engines, which can prevent deterioration of fuel efficiency due to a friction loss by a return spring even in a low...
US20070277763 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...
US20060016405 Hydraulic lash adjuster having a simplified plunger  
An improved hydraulic lash adjuster including a cup-shaped adjuster body, and a plunger assembly disposed within the adjuster body. The plunger assembly includes a stepped axial bore extending...
US20090050091 CAM FOLLOWER APPARATUS  
As this radial needle bearing 7c, a radial needle bearing is used which includes a cage 10b. Respective pillar portions 12, 12 which make up the cage 10b are disposed more radially inwards than a...
US20150192098 TAPPET  
A tappet (1) for a fuel injection pump, having a tube-like housing (2), which accommodates a roller (4) for the running on a periodic lift generator inside the inner lateral surface (5) thereof in...
US20100077975 SWITCHABLE CUP TAPPET  
A switchable bucket tappet for a valve drive of an internal combustion engine, which has a bucket basic body with a ring-like base. A hollow-cylindrical projection protrudes from an inner edge of...
US20060180110 Hydraulic lash adjuster  
A hydraulic lash adjuster (1) for a valve train (16) of an internal combustion engine, said hydraulic lash adjuster (1) comprising a hollow cylindrical housing (2) and a pressure piston (3) that...
US20060005797 Roller valve lifter  
A roller valve lifter apparatus for following an eccentric cam in an internal combustion engine includes a cylindrical roller, configured to roll upon the eccentric cam, and a lifter body, having...
US20120234277 ROLLER TAPPET  
The invention concerns a roller tappet (1) for a high pressure fuel pump, said roller tappet (1) comprising a housing (2) comprising on a drive side front end (3), a slide-mounted roller (4)...
US20140261269 NEEDLE ROLLER CAM FOLLOWER FOR HIGHER MILEAGE APPLICATIONS OF LIGHT, MEDIUM AND HEAVY DUTY VEHICLES  
A roller assembly for a diesel engine used in a high mileage vehicle includes a roller having an exterior roller surface and an interior surface that defines a bore extending therethrough. A pin...
US20080264370 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...
US20150096515 Mechanical System, Injection Pump And Valve Actuator Comprising Such A Mechanical System And Manufacturing Method  
A mechanical system, comprising a support element, a pin extending along a first axis and comprising two opposite ends, each adapted to be fitted in the support element for radial retention of the...
US20150090211 Mechanical System, Injection Pump And Valve Actuator Comprising Such A Mechanical System And Manufacturing Method  
A mechanical system, comprising a support element having an outer surface adapted to slide in a housing receiving the mechanical system, a pin extending along a first axis and comprising two...

Matches 1 - 50 out of 63 1 2 >