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8181614 |
Internal combustion engine and vehicle incorporating same
An internal combustion engine includes a main enlarged member extended towards a camshaft for forming reed valve chambers. The main enlarged member is integrally provided on a head cover of the...
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8161930 |
Camshaft for a variable lift valve train of an internal combustion engine
A camshaft (1) is provided for a stroke-variable valve drive of an internal combustion engine with a carrier shaft (2) and a cam part (3) that is arranged locked in rotation and movable in the...
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8156910 |
Concentric camshaft and method of assembly
A camshaft assembly method may include locating a first lobe member of a camshaft assembly on a first shaft of the assembly. A locking pin may be inserted into a first radial bore in the first lobe...
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8113163 |
Concentric camshaft and method of assembly
A camshaft may include a first shaft, a stop member, and a first lobe member. The first shaft may include an outer radial surface having a first recess extending radially therein. The stop member...
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8109247 |
Wear resistant camshaft and follower material
A materials combination for a camshaft and follower of an engine valve train provides excellent wear resistance. The camshaft or camshaft lobes are made from a malleable cast iron and the cam...
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8104443 |
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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8096275 |
Camshaft having a tuned mass damper
A camshaft assembly may include a first shaft adapted to be rotationally driven, a first lobe member fixed for rotation with the first shaft, and a torsional damper fixed to the first shaft. The...
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8056521 |
Bearing device
The present invention relates to a bearing device (1) for supporting a camshaft (2) in a cylinder head with at least two bearing blocks (3) which support the camshaft (2), and which are axially...
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8051821 |
Camshaft apparatus
A camshaft apparatus includes rolling bearings which support a camshaft rotatably, whereby a reduction in torque when an engine is started or is running at low speeds, a reduction in vibration of...
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8042500 |
Valve train for internal combustion engine
A valve train of an internal combustion engine is provided with a plurality of camshaft supports arranged on a support member of the engine, and a camshaft is supported on the camshaft supports....
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8028666 |
Concentric camshaft with bearing sleeve and method of debris removal
A camshaft may include a first shaft, a bearing sleeve member located on and fixed to the first shaft, and a first lobe member located on the first shaft and displaceable between first and second...
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8011333 |
Vehicle and propulsion system including an internal combustion engine
An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of...
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7992533 |
Shaft with functional bodies such as camshafts for internal combustion engines, method of producing them and engines equipped therewith
A shaft comprising functional elements, such as an assembled camshaft for an internal combustion engine, a method for producing such shafts, and internal combustion engines equipped with such...
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7987824 |
Device for the hydraulic control of gas exchange valves of a reciprocating internal combustion engine
A device for hydraulic control of gas exchange valves of a reciprocating internal combustion engine which has slave cylinders in operative connection with one or more gas exchange valves and master...
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7980217 |
Valve train of an internal combustion engine
A valve train of an internal combustion engine with at least one camshaft (1) on which at least one rotatable cam (2) is arranged fixed in the axial direction, wherein a rotationally fixed...
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7975381 |
Valve operating camshaft system for internal combustion engine
A camshaft system includes a number of cam lobes locked upon a cylindrical shaft. Bearings configured with one-piece bores and are engaged with the cylindrical shaft. The bearings are captured upon...
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7966983 |
Concentric camshaft with varying wall geometry and method of assembly
A camshaft may include a first shaft, a first lobe member, and a second lobe member. The first shaft may include an annular wall defining a first bore. The wall may include a first portion having a...
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7958859 |
Camshaft assembly
A camshaft assembly is disclosed which comprises an inner shaft, an outer tube surrounding and rotatable relative to the inner shaft, and two groups of cam lobes mounted on the outer tube, the...
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7938091 |
Camshaft and camshaft manufacturing method
A cam lobe of a camshaft has a base circle portion and a lifting lobe portion. A camshaft journal of the camshaft has first and second bearing portions that bear reaction forces from the base...
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7926458 |
Lubricating device
A lubricating device comprises a cam shaft, plural cam portions for each valve provided at the cylinder head, a valve driving mechanism to change a rotational movement of the cam portion to an...
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7895743 |
Refurbished camshaft and method
A method of refurbishing a camshaft (100) having at least one defective portion (202, 206) includes removing material from the at least one defective portion (202, 206) to create a neck region...
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7895982 |
Refurbished camshaft and method
A method of refurbishing a camshaft (100) having at least one defective portion (202, 206) includes removing material from the at least one defective portion (202, 206) to create a neck region...
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7878167 |
Engine with round lobe
An engine with intake and exhaust valves that may be controlled with a circular cam lobe is provided. The rotating axis of the circular cam lobe is offset from the physical center of the cam lobe....
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7866293 |
Concentric camshaft with improved torque resistance
An engine assembly may include an engine structure and a camshaft supported on the engine structure. The camshaft may include a first shaft, a first lobe member fixed to the first shaft and...
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7861682 |
Systems and methods for managing camshaft torsional loading
Systems and methods for managing camshaft dynamic loads associated with actuation of a camshaft-driven auxiliary device in a multiple-cylinder internal combustion engine apply positive and negative...
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7849829 |
Concentric camshaft with independent bearing surface for floating lobes
A camshaft may include a first shaft, a first lobe member fixed to the first shaft, a second lobe member fixed to the first shaft, and a third lobe member. The first lobe member may include a first...
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7849826 |
Valve system
A valve system includes a first valve provided on an intake or exhaust port; a second valve provided on another intake or exhaust port; a first cam unit on a camshaft, defining first and second...
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7845075 |
Method for manufacturing a camshaft
A camshaft has at least two completely machined individual cams fixedly mounted on a shaft in predetermined angular positions. The shaft includes an outside shaft and an inside shaft arranged...
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7819101 |
Method and intake cam for retaining exhaust residuals for emissions reduction in a diesel engine
A diesel engine intake cam profile creates two intake valve events separated by a short dwell period each engine cycle. A relatively low valve lift during an engine exhaust event allows a portion...
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7802549 |
Camshaft
The present invention relates to a camshaft (1) which comprises an inner shaft (5) which is arranged coaxially in the outer shaft (6). Here, the outer shaft (6) is formed as a round cylindrical...
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7775186 |
Supporting structure for a camshaft, as well as methods for mounting and manufacturing a camshaft
A cam lobe is formed as a single part, not formed together with a shaft body. The shaft body penetrates through bearing holes, as well as a mounting hole provided in the cam lobe, which is arranged...
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7762225 |
Valve train of an internal combustion engine comprising at least one camshaft
The invention relates to valve train of an international combustion engine, which comprise axially displaceable cam elements. The inventive valve train is characterized in that one cam element...
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7739987 |
Variable valve gear for an internal combustion engine
The variable valve gear for an internal combustion engine includes a cam lobe that is rotatably supported by a cam drive shaft, and a variable valve mechanism that includes a drive arm fixed...
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7739991 |
Adjustable valve drive device of engine
A rocker cam is comprised of a first split body and a second split body, which are joined with a joint split face that contains an axial line of a cam shaft. The first split body has a first pin...
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7707983 |
Rolling bearing, cam shaft assembly and cam shaft supporting apparatus
A cam shaft assembly is provided which includes a rolling bearing providing for effective oil feeding to a raceway. The assembly includes: a shaft 1; the rolling bearings 3 rotatably supporting the...
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7699032 |
Camshaft of automotive combustion engines in particular
With a camshaft for an automotive internal combustion engine in particular, having two concentrically arranged shafts mounted to rotate in opposite directions, namely an inside shaft (3) and an...
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7685977 |
Internal combustion engine
An internal combustion engine has at least one cylinder and at least one gas exchange valve (1; 1a, 1b) controlled by a first cam (14) on a first camshaft (16) and by a second cam (15) on a second...
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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 permanently...
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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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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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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 inside shaft...
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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) and an...
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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 (1) has a...
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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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