Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8161927 | Valve system for overhead-camshaft-type internal combustion engine, and engine incorporating same A valve system of an overhead-camshaft-type internal combustion engine includes a cam holder fastened to a cylinder head having a combustion chamber formed therein. The cam holder supports a camshaft, and is disposed above the combustion chamber. The cam holder incl... | 04/24/2012 |
| 8042506 | Cylinder head A cylinder head has a cylinder head body, a camshaft housing mounted on the cylinder head body, and cam caps mounted on the camshaft housing. The camshaft housing has through holes into which bolts are inserted to secure the camshaft housing and the cam caps togethe... | 10/25/2011 |
| 7975664 | Valve drive having a mechanical valve play position and method for the mounting thereof The valve drive has a cam follower (10) which is arranged between a cam (3) of a camshaft (4) and the gas exchange valve (5) and is mounted on a support element (8). Support element (8) is stationary in cylinder head (2 | 07/12/2011 |
| 7966982 | Fixation structure for valve system rotation shaft of internal combustion engine A fixation structure for a valve system rotation shaft of an internal combustion engine to support a camshaft with a cylinder head through the use of a lower cam holder and cam caps, which are formed separately from the cylinder head. The fixation structure eliminat... | 06/28/2011 |
| 7665435 | Internal combustion engine provided with camshaft-driven accessory An internal combustion engine has a camshaft holder 20 attached to a cylinder head 1, and two camshafts 11 and 12 are rotatably supported by the camshaft holder 20. A high-pressure pump 60 has a driving shaft 63 rotat... | 02/23/2010 |
| 7650862 | Engine and motorcycle A multiple-cylinder DOHC engine, including a cylinder head, a first camshaft that is mounted on the cylinder head and is configured to drive one of an intake valve and an exhaust valve mounted on the cylinder head, a second camshaft that is mounted on the cylinder h... | 01/26/2010 |
| 7438035 | Cam drive apparatus having a magnetic gear A cam drive apparatus comprising a magnetic gear adapted to communicate rotational movement between a crankshaft and a cam shaft, wherein said magnetic gear comprises an outer member comprising a plurality of circumferentially spaced magnet means, said outer member ... | 10/21/2008 |
| 7434555 | V type internal combustion engine A number of embodiments of double overhead cam shaft V type engines wherein the drive arrangement for the camshafts permits not only a compact design but also one in which the timing loadings are decreased to improve engine life, performance and reduced servicing. | 10/14/2008 |
| 7430997 | Variable valve operating device for engine A variable valve operating device is provided that can swiftly adjust a valve timing of an engine and is for adjusting a valve lift and the valve timing of the engine. The variable valve operating device includes a rocking cam, a rocking cam support member, a valve,... | 10/07/2008 |
| 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 main cam element that can be placed radially on the outside shaft and i... | 10/07/2008 |
| 7412952 | Poppet valve operating system for internal combustion engine A poppet valve operating system for an internal combustion engine includes poppet valves which are driven by rocker arms rotationally mounted to a rocker shaft. Each of the rocker arms is maintained in axial alignment upon the rocker shaft by a separate, resiliently... | 08/19/2008 |
| 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 opposite direction through oil pressure supply passages. The slide pin mo... | 05/13/2008 |
| 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) to a gas-exchange valve (5), in that th... | 04/29/2008 |
| 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 first position and a second position and a crankshaft that is rotatab... | 04/15/2008 |
| 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 extends through a through-hole provided in a sprocket and is engaged ... | 03/11/2008 |
| 7334572 | System and method for securing fuel injectors A system and method for securing a fuel injector in an internal combustion engine include a clamp for securing adjacent injectors to a cylinder head. The clamp includes a central portion with a hole for receiving a fastener to secure the clamp to the cylinder head, ... | 02/26/2008 |
| 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 rotationally maintaining a ball bearing positioned in a smooth U-shaped gr... | 02/19/2008 |
| 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 (2) by a valve spring (3). The valve drive... | 02/05/2008 |
| 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 continuously variable valve timing. A retard hole, which includes a ... | 01/29/2008 |
| 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 different material connected to each other in a force-and form-closing man... | 01/29/2008 |
| 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 least one valve, in particular a gas exchange valve of an internal combu... | 12/25/2007 |
| 7308882 | Oil feeding system of engine An oil feeding system of an engine equipped with a transmission configured to change a rotational speed of rotation of a crankshaft and to output the rotation, including an oil pump configured to be driven in cooperation with the rotation of the crankshaft, an oil p... | 12/18/2007 |
| 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 built multiple cam comprises the following components: a first partial c... | 12/11/2007 |
| 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 banks of an engine. The cam phaser is carried on a hub extending fro... | 11/13/2007 |
| 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 varies continuously in those sections in which the cam disks are attache... | 11/06/2007 |
| 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 first group of cam lobes 16 being fast in rotation ... | 10/30/2007 |
| 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 the outside shaft, fixedly connected to the inside shaft radially throu... | 10/23/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7273024 | Engine with variable valve timing An engine is described having two camshafts 14, 16 each of which carries two groups of cams and comprises an inner shaft coupled for rotation with a first group of cams and an outer tube rotatably supported by the inner shaft and coupled for rotation with the... | 09/25/2007 |
| 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 overhead camshaft is operatively connected with the balance shaft such th... | 09/18/2007 |
| 7264448 | Remotely accessible locking system for turbine blades Embodiments of the invention relate to an axial locking system for a row of blades in a turbine engine. While achieving the desired axial restraint, the system is configured to allow remote manipulation of the locking system. For example, a locking system provided o... | 09/04/2007 |
| 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 and closing times and different lifts according to the operating condit... | 08/07/2007 |
| 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 part, at least two bearing covers corresponding to the bearing saddles... | 07/31/2007 |
| 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, comparing peak oil pressure readings in the drive chamber resulting from th... | 07/24/2007 |
| 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 (11A) formed by plasticity process on a portion of the hollow shaft member (11) corresp... | 07/24/2007 |
| 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 plastic received within the aperture, a crankshaft coupled to the engi... | 06/26/2007 |
| 7232005 | Power plant mounting apparatus A power plant mounting apparatus includes a mount member that enables a side member of a vehicle to support a power plant. The mount member has a supporting member whose one end is fixed to the power plant. The supporting member has a shaft portion at the other end ... | 06/19/2007 |
| 7220196 | Chain drive for an internal combustion engine In a chain drive for an internal combustion engine, said chain drive comprising a driving wheel (2), a driven wheel (3), an endlessly circulating chain (1) that connects the driving wheel (2) and the driven wheel (3), a chain tensi... | 05/22/2007 |
| 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 (r.p.m.) activates the hydraulic piston 8, and alte... | 05/08/2007 |
| 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 crankshaft (12) and at least one overhead camshaft (1... | 05/01/2007 |
