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7246582 Variable valve control apparatus and variable valve controlling method for internal combustion engine  
The rotational acceleration of an engine is calculated based on a detection value of an engine rotating speed, the inertia torque to be transmitted to a variable valve mechanism, such as a variable...
7243628 Apparatus and method for assembling crankshaft-sprocket  
An apparatus for assembling a crankshaft-sprocket aligns a timing mark of a sprocket to a predetermined line of a crankshaft, and includes a slider for slidably moving an interior circumference...
7243627 Engine rotation condition detecting system and engine control method  
An internal combustion engine has a variable valve timing apparatus including a driving motor between a crankshaft and a camshaft. The driving motor rotates synchronously with the camshaft when the...
7243626 Camshaft adjuster  
A device for changing the control times of an internal combustion engine (camshaft adjuster ( 1 )) having a pressure medium distributor ( 21 ) arranged within a camshaft ( 11 ) is provided. The...
7243625 Variable valve control system and method for internal combustion engine  
There is provided a variable valve control system for an internal combustion engine, including an intake valve event and lift control mechanism capable of varying an operation angle of an intake...
7240651 Variable cam timing damper  
A variable cam-timing phaser, including a stator having a plurality of inwardly-extending stator lobes and a rotor having a plurality of outwardly-extending rotor lobes. The rotor is rotatably...
7231896 Control mechanism for cam phaser  
A VCT phaser having a mechanical feedback in which no elaborate sensors and its concomitant electronic control loop is required. The phaser has center mounted spool valve controlling the flow of...
7228829 Continuously variable valve timing device  
A system for continuously varying valve-opening overlap in reciprocating internal combustion engines changes the path of the timing belt ( 16 ) that drives the intake valve camshaft ( 26 ). An...
7228830 Valve timing control device for internal combustion engine  
A valve timing control device includes a drive pulley driven by a crankshaft of an engine, and a driven camshaft. The camshaft has a cam that serves to open and close an intake port. An engine...
7225772 Method, control unit and program code for a control unit for controlling a camshaft control device  
To operate a steplessly adjustable camshaft control device, particularly reliably and safely, an adaptation of the camshaft and the crankshaft is performed so that a phase angle (actual value) of...
7225774 Valve timing control apparatus for internal combustion engine  
A valve timing control apparatus for an internal combustion engine includes a housing having a housing body and shoes protruding from an inner circumferential surface of the housing body to define...
7225773 Variable stroke valve drive for an internal combustion engine  
A variable stroke valve drive for an internal combustion engine, including an intermediate lever which is slidingly arranged on a crank path of a crank arm the intermediate lever has a working cam...
7222598 Valve timing controller  
A vane rotor, a bush, and a press-fitting member are connected with a camshaft of an engine. The bush is supported by an inner surface of a front plate of a shoe housing. The press-fitting member...
7222597 Internal combustion engine having a hydraulic device for adjusting the rotation angle of a camshaft relative to a crankshaft  
A hydraulic device for adjusting the rotation angle of a camshaft relative to a crankshaft in an internal combustion engine. The device has a rotor, with blades arranged around its periphery. A...
7219637 Engine with variable value timing device  
An engine includes a variable valve timing device coupled to a camshaft, which operates within a cam chamber of the engine. The variable valve timing device includes a hydraulic pressure switchover...
7219636 Variable valve timing control system of internal combustion engine  
A variable valve timing control system of an internal combustion engine includes a hydraulically-operated phase converter disposed between a sprocket and a camshaft, and having a phase-advance...
7216613 Variable valve control apparatus for internal combustion engine  
A reference model simulates a desired response characteristic of the variable valve timing apparatus and is constructed by using a dynamic characteristic in a region of the maximum changing speed...
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...
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...
7204217 Hydraulic camshaft adjuster for a camshaft of an internal combustion engine  
In a hydraulic camshaft adjuster for a camshaft of an internal combustion engine, with an inner body connected for rotation with the camshaft and having at least one vane extending into a chamber...
7204215 Valve characteristic controller and control method for internal combustion engine  
A valve characteristic controller for an engine including variable valve actuation mechanisms, one for a first valve and another for a second valve, to vary the opening and closing timings of the...
7204214 Multi-cylinder internal combustion engine  
#7 cylinder shares an exhaust manifold with #1 cylinder and is fired a predetermined firing interval after #1 cylinder. An exhaust cam shaft has a first cam for driving the exhaust cams of #1...
7201124 Phase displacement device  
A phase displacement device ( 1 ) having a drive ( 2 ) with a drive shaft ( 4 ) and a transmission ( 5 ) for displacing the phase between a camshaft ( 9 ) and a crankshaft ( 12 ) is provided. The...
7198013 Device and method for the relative rotational adjustment of a camshaft and a drive wheel of an internal combustion engine  
A device and method for the relative adjustment of the angle of rotation of a camshaft with respect to the crankshaft of an internal combustion engine that utilizes a hydraulically activated...
7198014 Valve timing control apparatus and method for setting minimum torque  
In a valve timing control apparatus, a relative rotational phase between a drive rotational member rotated with a crankshaft and a driven rotational member rotated with a camshaft is controlled by...
7188593 Controller for automobile  
A control duty is obtained, which asymptotically makes the output of a control subject consistent with an output of a reference model. The output of the control subject simulates a dynamic...
7182052 Valve timing controller  
A shoe housing receives a driving force from a crankshaft and a vane rotor rotates with a camshaft in combination. The vane rotor is received in the shoe housing in such a way as to freely turn....
7178495 Adjusting device for camshafts, particularly for motor vehicles  
An adjusting device for camshafts of motor vehicles has a stator having radial inwardly projecting stays and a rotor having vanes projecting into spaces defined between the stays of the stator. The...
7174867 Air-cooled internal combustion engine  
An air-cooled internal combustion engine includes a cylinder block having a plurality of cylinder bores disposed in parallel to each other, a cylinder head secured to an upper portion of the...
7171939 Integrated cam drive and oil pump assembly for motorcycle engines and the like  
An integrated cam drive and oil pump assembly for motorcycle engines includes an oil pump body, which is connected with the engine crankcase, and has an oil passageway with a pump outlet portion...
7171931 Variable valve system with control shaft actuating mechanism  
A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system...
7171932 Internal-combustion engine having an electronically controlled hydraulic device for variably actuating intake valves  
An internal-combustion engine has a cylinder head, in which two shafts are mounted rotating. A first shaft is a camshaft, equipped both with cams that control the intake valves by means of an...
7168405 Camshaft drive mechanism  
Apparatus includes left and right inline type cylinder heads essentially identical to one another and each having an intake side, the left and right cylinder heads being combined into a ā€œVā€...
7168402 Intake valve control apparatus and method for an internal combustion engine  
An intake valve control apparatus for an internal combustion engine includes a first variable valve operating mechanism capable of varying an operation angle of an intake valve continuously, a...
7162984 Valve timing control system for internal combustion engine and method for assembling same  
A valve timing control system for an internal combustion engine includes a driving member to which a rotational force is transmitted from a crankshaft. A driven member is rotatable with a cam shaft...
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...
7159549 Variable valve system of internal combustion engine  
A camshaft is formed at a generally middle portion with an enlarged cylindrical portion. An annular vane member is mounted on the enlarged cylindrical portion and secured thereto by means of a nut....
7159548 Variable valve actuating system and method  
A variable valve actuating apparatus for an internal combustion engine, includes an intake valve timing control device to vary a center phase of an intake valve operation angle, an exhaust valve...
7159545 Valve timing control apparatus for internal combustion engine and control method thereof  
A valve timing control apparatus for an internal combustion engine which comprises a variable valve timing mechanism which varies an opening-and-closing timing of an intake valve and/or an exhaust...
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...
7152561 Control structure for the adjusting motor of an electric camshaft adjuster  
A control structure for the adjusting motor of an electric camshaft adjuster in an internal combustion engine is provided. The control structure includes a controller which processes measuring...
7150251 Valve timing control apparatus  
The invention intends to improve a response by utilizing a rotational variable torque of a cam shaft. Communication paths respectively communicating an advance hydraulic chamber and a retard...
7146949 Valve control apparatus  
A first camshaft ( 24 ) operates the exhaust valves ( 18 ) and a first intake valve ( 12 ) for each cylinder ( 8 ), and a second camshaft ( 38 ) operates the second intake valve per cylinder ( 14...
7146945 Apparatus for an internal combustion engine  
The invention relates to an apparatus for an internal combustion engine which for each cylinder with associated piston has at least one inlet valve and at least one exhaust valve for controlling...
7146946 Valve timing adjusting device  
A valve timing adjusting device includes a first rotor that rotates synchronously with a crankshaft of an engine; a second rotor that is relatively rotatable by a predetermined angle within the...
7140335 Dynamic valve timing adjustment mechanism for internal combustion engines  
A cam phaser is disclosed for adjusting the angular position of a camshaft relative to a crankshaft. In a first embodiment, a rotatable camshaft has an interior passageway and at least one cam...
7137371 Phaser with a single recirculation check valve and inlet valve  
A variable cam timing phaser for an internal combustion engine having at least one camshaft comprising a housing, a rotor, a spool valve, and a recirculation check valve. The housing and the rotor...
7137370 Gearbox comprising two rotatable disks which are arranged inside each other and are connected by means of a swash plate  
A gear arrangement has two turntables nested or arranged concentrically in one another, and interconnected with one another via a swashplate. The gear arrangement preferably is used for adjusting...
7137367 Control apparatus and control method for internal combustion engine valve actuation  
An apparatus controls actual actuation of each of a first and a second valve to the corresponding target actuation. A first computing portion computes the target actuation of the first valve and a...
7131409 Valve timing changer  
A valve timing change apparatus of the present invention is an apparatus for changing the relative angular position between a cam shaft 10 and a sprocket 30 , which comprises an angle change...