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7628129 |
Camshaft, method of manufacturing cam for camshaft, and method of manufacturing shaft for camshaft
A method of manufacturing a cam for a camshaft, comprising the steps of continuously applying, to a billet having a volume larger by a specified volume than a final product, a plurality of cold...
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7621245 |
Camshaft
The present invention relates to a camshaft ( 1 ) for more preferably motor vehicle engines with a termination element ( 2 ) arranged with an axial end side in or on the camshaft ( 1 ) and...
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7610889 |
Camshaft assembly including a target wheel
A camshaft assembly including a target wheel is manufactured using an assembly process in which the camshaft is formed from a hollow tube. After the cam rings and a target wheel ring have been...
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7610890 |
Camshaft with cams that can be rotated in relation to each other, especially for motor vehicles
The aim of the invention is to provide a reliable and inexpensive camshaft wherein the inner shaft and the outer shaft can be adjusted in a low-friction manner. For this purpose, a camshaft with...
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7597078 |
Camshaft
The present invention relates to a camshaft ( 1 ) having cams ( 3 and 4 ) rotatable with respect to one another about the camshaft axis ( 2 ) over limited circumferential angles, whereby an...
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7588006 |
Bearing between two coaxial camshafts for automotive engines in particular
A camshaft for automotive engines in particular having contra-rotating cams capable of rotating over a limited circumferential angle about the camshaft axis in which
an inside shaft ( 2 )...
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7578272 |
Multiple cylinder engine
A multiple cylinder engine includes a plurality of cylinders. Each cylinder includes a valve configured to open and close a port associated with each of the respective cylinders. The cylinders...
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7540267 |
Engines with variable valve actuation and vehicles including the same
An engine includes a camshaft with outer and inner elongate members. The outer elongate member can include a lobe that actuates a valve. The inner elongate member can be axially disposed within a...
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7536986 |
Camshaft
The present invention relates to a camshaft ( 1 ) having an inner shaft ( 3 ) arranged coaxially in an outer shaft ( 2 ) and mounted to rotate with respect to the outer shaft ( 2 ). The camshaft (...
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7513232 |
Adjustable camshaft, in particular for internal combustion engines for motor vehicles having a hydraulic adjusting device
An adjustable camshaft has at least one adjusting element of an adjusting system fixedly connected to inner and outer shafts that is at least partially in tight contact at the end with a connection...
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7506624 |
Variable engine valve actuation system
A valve actuation system for a power system is provided. The valve actuation system has an engine valve moveable to selectively prevent or allow a flow of fluid relative to the engine valve. The...
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7503293 |
Adjustable camshaft
The present invention relates to an adjustable camshaft in which an inside shaft and an outside shaft, each being fixedly connected to cams, are mounted so they are rotatable in relation to one...
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7500456 |
Cam connecting shaft and method of use
The present invention is a novel non-splined shaft for connecting cam units (cam sections) in a series to construct a camshaft having zero degree backlash for use within an engine. Such engines...
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7484296 |
Camshaft and method for producing a camshaft of this type
The invention relates to a camshaft ( 50 ) comprising a shaft ( 13 ) onto which one or more annular cams ( 46 ′) are pushed and fixed in a positive and/or non-positive fit. To produce said...
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7484486 |
Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters
A drive for valve drive operating control systems in motor vehicles, preferably for camshaft adjusters, includes at least one drive wheel and functional parts, such as a cover, a stator, a closing...
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7475663 |
Internal combustion engine and an engine housing
The invention relates to an internal combustion engine ( 1 ) comprising a housing ( 2 ) having at least one opening ( 4 ) into its inside, which is preferably the engine-oil feed inlet, and with a...
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7475659 |
Device combustion engine
A device for controlling valve movements in an internal combustion engine includes a rotating camshaft having a cam curve, the camshaft being designed, via a rocker arm, to interact with a valve...
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7472671 |
Valve engine
A valve drive for an internal combustion engine having at least one camshaft which has a toothed shaft ( 2 ) and at least one cam part ( 3 ) with a plurality of different cam paths ( 13, 14 )...
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7431002 |
Camshaft with contrarotating cams for automotive engines in particular
A camshaft has contrarotating cams for automotive engines, in which an inside shaft and an outside shaft are arranged concentrically so they are contrarotating, at least one cam has at least one...
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7424877 |
Internal combustion engine
The invention relates to an internal combustion engine comprising a variable valve drive device provided with at least one camshaft having at least one cam arrangement. Said cam arrangement...
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7421988 |
Positive-guidance apparatus for conversion of a rotary movement of a drive to a reciprocating movement of a part
A positive-guidance apparatus for conversion of a rotary movement of a driven cam element to a reciprocating movement of a part. The apparatus has a first cam area which pushes the part away in a...
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7415951 |
Valve timing mechanism of an internal combustion engine
A valve timing mechanism of an internal combustion engine of a motor vehicle, having a camshaft having at least one cam ( 18 ), via which a switchable valve timing mechanism element ( 1 ) can be...
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7404383 |
Valve train with cam switching for the gas exchange valves of a four-cycle internal combustion engine
A valve train with cam switching used for intermittent control of a four-cycle internal combustion engine. The valve train comprises a splined shaft, one cam block per cylinder, and a...
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7392775 |
Helical cam device and method
A helical cam device for use with a wide variety of applications generally includes a first cam component, a second cam component and an axial guide. The cam components each have a helical cam...
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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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7341032 |
Dynamic camshaft apparatus
A dynamic camshaft apparatus includes, according to one embodiment, a moveable camshaft connected to an engine. The moveable camshaft has a first position when the engine is started and at low...
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7334550 |
Valve train and cam lobe
A camshaft for an internal combustion engine includes a cam lobe for actuating a valve. The cam lobe has an opening ramp profile that acts to loft the valve gear away from contact with the cam lobe...
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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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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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7314031 |
Camshaft arrangements for engines
A camshaft assembly 16 is disclosed for an engine 10 , along with a method of producing the camshaft 16 . The camshaft includes a support shaft 22 that carries in the region of one end 26 a...
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7314027 |
Variable valve unit for internal combustion engine
A variable valve unit for an internal combustion engine includes a first arm opening and closing a valve, a second arm driven by a cam, a third arm receiving a displacement of the second arm to...
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7308869 |
Radial compression-ignition engine
A compression-ignition internal combustion engine for aircraft generally comprises a stationary crankshaft, a crankcase adapted to rotate about the stationary crankshaft, and a plurality of...
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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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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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7284521 |
Shaft mechanism, in particular camshaft of automotive engines
A camshaft of an automotive engine includes two concentric contra-rotating shafts mounted one inside the other, namely an inside shaft and an outside shaft, at least one cam rotatably mounted on...
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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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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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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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7228831 |
Camshaft and oil-controlled camshaft phaser for automotive engine
An adjustable camshaft system for an automotive engine includes a camshaft having machined and fabricated axially-directed control passages combined with an oil-activated camshaft phaser. The...
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7222596 |
Valve drive for charge-cycling valves of internal combustion engines
A valve drive for charge-cycling valves of internal combustion engines, which are held in the closed position by means of spring force, and can optionally be activated by a main cam or additionally...
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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...
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7146956 |
Valve train for internal combustion engine
A valve train for an internal combustion engine is comprised of a lubricating oil, and a camshaft which is made of an iron-based material and comprises a cam lobe and a camshaft journal. The...
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7111598 |
Pivoting actuator system for controlling the stroke of a gas exchange valve in the cylinder head of an internal combustion engine
Swivel actuator device for lift control of a gas exchange valve in a cylinder head of an internal combustion engine comprising a swivel motor having a shaft on which is provided a first operating...
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7096838 |
Reversible four cycle internal combustion engine
A reversible four cycle internal combustion engine. A crankshaft is rotatably mounted in a block and a piston is operatively mounted to a crankshaft via a connecting rod. A follower wheel traverses...
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7082912 |
System and method for controlling engine valve lift and valve opening percentage
System and method for controlling internal combustion engine valve lift and valve opening by an arrangement of cams with overlapping cams track that synchronize and vary the rise, fall, and dwell...
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7077088 |
Desmodromic valve retrofit system with replaceable cam lobes for adjusting duration and hydraulic lifters for reliability
A desmodromic “springless” valve and adjustable cam system is provided which is adapted to be installed onto a head configured for an overhead cam for an internal combustion engine having at...
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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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7066124 |
Engine for scooter
In a scooter engine having valve lifters ( 33 ) interposed between intake valves ( 16 ) and a cam shaft ( 31 ), as well as between exhaust valves ( 17 ) and a cam shaft ( 32 ), with its axial line...
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7055480 |
Valve gear of internal combustion engine
There is provided a valve gear of an internal combustion engine, comprising a cam mechanism for converting rotational motion of an electric motor into linear motion to drive a valve for opening and...
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