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7370617 |
Variable valve operating mechanism of four-stroke internal combustion engine
A variable valve operating mechanism of a four-stroke internal combustion engine includes a slide pin energized by a pin spring in a direction while oil pressure acting on the slide pin in the...
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7363899 |
Valve drive of an internal combustion engine
A valve drive ( 1 ) for an internal combustion engine with a lever-type cam follower ( 7 ) is provided, which is used for the variable adjustable transmission of a raised section ( 2 ) of a cam ( 3...
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7357108 |
Valve-operating mechanism
A valve operating system for an engine that includes a piston that reciprocates along a piston axis. The valve operating system includes a valve member that is movable along a valve axis between a...
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7341031 |
Valve timing controller
A valve timing controller includes a housing which is biasedly assembled in such a manner that the housing is previously moved in a direction where a rotor knocks the housing. A camshaft rotatably...
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7331319 |
Cam hub mounting assembly
A cam hub mounting assembly for a camshaft having a cam cover rotationally mounted within a cam cover retainer with a bearing retainer ring therebetween having a plurality of slots, each slot...
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7325522 |
Valve drive for a cam-operated valve
A valve drive ( 1 ) for a cam-operated valve ( 2 ) of an internal combustion engine is provided, in which a closing force is applied to the valve ( 2 ) against the opening direction of the valve (...
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7322330 |
Method for linking element to hollow shafts, preferably for producing camshafts, and resulting camshaft
A Method for the linking of cam rings to hollow shafts. In a first process step, the cam rings are manufactured, so as to generate their function-related contour, from two individual rings of...
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7322327 |
Lubrication structure of camshaft with variable valve timing
A lubrication structure for a camshaft with variable valve timing includes an advance hole, which includes an advance flow passage formed in a camshaft body. An end of the camshaft is attached to a...
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7311072 |
Control unit for a valve, especially a gas exchange valve of an internal combustion engine
A gas exchange valve of an internal combustion engine, has valve lifting movements with valve displacement curves and a control unit. To this end, a control unit is provided for operation of at...
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7305953 |
Built multiple cam
A built multiple cam is disclosed which can be produced at low cost and which can be used in a flexible manner and which requires a small amount of construction space in an axial direction. The...
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7293538 |
Overhead camshaft drive assembly
A variable timing camshaft drive assembly for an internal combustion engine utilizes a single cam phaser, driven by an engine crankshaft, capable of operating multiple camshafts carried on multiple...
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7290515 |
Camshaft and method for producing a camshaft
In a camshaft for an internal combustion engine having a cam disk support shaft, to which a plurality of cam disks and a drive wheel are attached, the outer radius of the cam disk support shaft...
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7287499 |
Camshaft assembly
A camshaft assembly comprises an inner shaft 12 and an outer tube 14 surrounding and rotatable relative to the inner shaft. Two groups of cam lobes are mounted on the outer tube 14 , the...
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7270097 |
Camshaft drive system and engine assembly
An engine assembly is provided including an engine crankshaft and a balance shaft connected with the crankshaft and rotatably driven thereby. A vehicle component such as a hydraulic pump or an...
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7252061 |
System and method for controlling load and combustion in an internal-combustion engine by valve actuation according to a multiple lift (multilift) cycle
An internal-combustion engine is equipped with a system of variable actuation of the intake valves that is controlled electronically for the purpose, of imparting on the valves different opening...
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7249581 |
System with camshaft and camshaft receptacle
The invention relates to a system, comprising a camshaft with at least two bearing points, a two-part camshaft receptacle which has, in a lower part, at least two bearing saddles and, in an upper...
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7246588 |
Assembled camshaft for engine and production method thereof
An assembled camshaft ( 10 ) for engine includes: a cam lobe piece ( 12 ); and a hollow shaft member ( 11 ) having at least two shaft fixing surfaces ( 11 A) formed by plasticity process on a...
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7246583 |
Method and apparatus for diagnosing valve lifter malfunction in a lift on demand system
A method for diagnosing malfunctions of switching valve lifters includes sensing variations in pressure of trapped oil in a drive chamber of a hydraulic camshaft drive, such as a cam phaser,...
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7234428 |
Cam shaft assembly for an engine
An internal combustion engine including an engine housing having a cam chamber and an aperture providing access to the cam chamber. The engine also includes an insert at least partially made from...
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7213552 |
Variable geometry camshaft
The invention improves volumetric efficiency of the internal combustion engine. A suspended cam, 1 , follows a limited arc of rotation about the axis of a drive gear, 3 . A change in engine speed...
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7210436 |
Four-cycle combustion engine, particularly for lawnmowers
The invention relates to a four-stroke internal combustion engine ( 10 ), especially for lawnmowers, comprising at least one cylinder for a reciprocating piston which acts via a connecting rod on a...
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7204212 |
Camless engine hydraulic valve actuated system
A method and apparatus for hydraulically actuating a gas exchange valve using a low-pressure, substantially constant flow fluid source applied to at least one actuator cylinder piston coupled to...
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7165522 |
Cylinder head of an internal combustion engine having a camshaft bearing rail
A cylinder head of an internal combustion engine is provided with a cylinder head housing and with a divided camshaft bearing rail having a lower part, which comprises lower bearing blocks, and...
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7162985 |
Two-cylinder V-type OHV engine for outboard motors
A two-cylinder V-type OHV engine for outboard motors, which allows space saving in the direction of the width of the engine. A starboard side cylinder bank (RB) has a cylinder ( 34 R) and a port...
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7156060 |
Cam drive gear and valve operating system drive gear for engine
A cam drive gear for an engine is described where the distance between the axes of a crankshaft and an idle shaft bearing an idle gear thereon can be made smaller, thereby contributing to a...
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7121242 |
Lubricating structure of OHC internal combustion engine
A lubricating structure for an OHC internal combustion engine including a cam holder, wherein an oil feed path for feeding a lubricant to an upper end of a valve stem is formed integrally with the...
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7121239 |
Valve train for internal combustion engine
A valve train including a cylinder having a cylinder axis and a cylinder head, the valve train has a first operating mechanism including a cam follower driven by a first valve train cam provided on...
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7114474 |
Tensioner lifter mounting structure for V-engine
A chain tensioner is in sliding contact with each cam chains in a pair of banks and each of cylinder heads of the pair of banks includes a tensioner lifter that abuts on a corresponding one of the...
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7104231 |
Valve train of internal combustion engine
The valve train V of an internal combustion engine E includes; a rocker arm 50, 60 for opening and closing the suction valve 13 ; a holding body 70 for holding the spring 77 to generate the...
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7096837 |
Valve train of an internal combustion engine
The invention proposes a valve train of an internal combustion engine comprising a cam ( 1 ) and a directly driven cam follower ( 2 ), such as a roller tappet. This valve train is additionally...
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7082917 |
Engine
An engine includes a cylinder head having a valve-operating chamber. A cylinder head is coupled to a cylinder block by a plurality of fastening bolts. A head cover is coupled to the cylinder head...
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7080616 |
Cylinder head assembly for an internal combustion engine with a camshaft position sensor
A cylinder head assembly for an internal combustion engine houses a camshaft position sensor for determining an angular position of a camshaft. A cylinder head upper is disposed between a cylinder...
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7069892 |
Camshaft for automotive engines in particular
A camshaft for automotive engines in particular, comprising at least one first cam ( 5 ′) and at least one cam segment ( 6 ) which is rotatable to a limited extent with respect to the first cam (...
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7069889 |
Camshaft, especially for an internal combustion engine of a motor vehicle, comprising shiftable cams
Disclosed is a camshaft, especially for an internal combustion engine of a motor vehicle, comprising at least one cam that is provided with cam segments ( 2, 3 ), which can be displaced relative to...
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7047923 |
Device for varying valve timing in an internal combustion engine
A device for varying valve timing in an internal combustion engine comprises an adjusting mechanism for varying an angle of rotation between a drive pinion ( 2 ) and a camshaft (end portion of the...
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7036473 |
Adjustable cam shaft
An adjustable cam shaft includes an elongated shaft which may include multiple shaft sections rotatably coupled to one another. Intake and exhaust cam lobes are carried by the one or more shafts...
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7032554 |
Thrust cam cap for engine camshaft
The present invention provides a thrust cam cap for an engine camshaft disclosed to effectively place a thrust cam cap to limit the longitudinal movement of an engine camshaft according to the...
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7025024 |
Zero belt camshaft
The invention relates to a camshaft comprising a tubular shaft ( 1 ) and cams ( 2 ) which are radially disposed thereon. Said cams ( 2 ) respectively engage with the shaft in a perfect fit ( 1 )...
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7007648 |
Oil passage structure for engine
To provide an oil passage structure for an engine in which a tensioner arm is in sliding-contact with a cam chain for speed-reducing a rotational power of a crankshaft by half and transmitting the...
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6976462 |
Double roller cam follower
A double roller cam follower includes a longitudinal beam having a first end and a second end, a cam roller rotationally mounted on the beam for engaging a cam lobe and a valve stem roller...
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6973902 |
Engine for a vehicle
An engine for a vehicle includes a cam chain tensioner actuated by pressure of lubricating oil for stabilizing a movement of a cam chain, a lubricating oil passage through which the lubricating oil...
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6966290 |
Engine valve train device
In an engine valve train device in which a crankshaft sprocket 25 b provided on a crankshaft 8 and an intermediate sprocket 38 a disposed in the vicinity of camshafts 36, 37 are connected...
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6959687 |
SOHC type engine
An SOHC-type engine in which first and second insertion/removal guide sections for guiding the insertion and removal of first and second spark plugs, respectively, are provided on a cylinder head...
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6953015 |
Engine
An engine has a first camshaft having a power input portion at one end thereof and a second camshaft interlocked and connected with the first camshaft at one end portion thereof have axes which are...
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6948468 |
Desmodromic valve and adjustable cam system
The present invention provides an exemplary rockerless desmodromic valve and adjustable overhead cam system adapted to be installed onto a head for an internal combustion engine which utilizes at...
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6948465 |
Variable valve mechanism for engine
A variable valve mechanism has a switching mechanism for transmitting cam displacement to a first rocker arm from a second rocker arm. A camshaft is disposed obliquely above a rocker shaft. A first...
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6941914 |
Internal combustion engine
A twin cylinder engine, includes a pair of cylinder members mounted to mounting surfaces of a crankcase, and cylinder heads mounted to the cylinder members. The cylinder members are modular...
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6935292 |
Camshaft with curvature
Camshaft configurations are increasingly more closely assembled in motor vehicle engines such that access to the cylinder head bolts is obstructed. Indentations 2 along built-up camshafts, which...
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6932038 |
Method and apparatus for actuating a cam phaser
A camshaft phaser wherein camshaft oscillatory torque resulting from opening and closing of an associated engine valve is employed to controllably adjust the degree of advance or retard of the...
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6910451 |
Valve timing control system and method of producing valve timing control system
A valve timing control system has a tubular housing; a cam shaft having an external periphery formed with a drive cam; a phase variation mechanism disposed in the tubular housing, and varying a...
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