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4672926 Arrangement for hydraulic pressure feed in internal combustion engines  
An arrangement for hydraulic pressure feed to self-adjusting hydraulic valve pushers in an internal combustion engine has a number of valves arranged in line in the engine cylinder head. The valve...
4672927 Valve actuator for internal combustion engine  
A valve actuating mechanism for an overhead valve and overhead cam type internal combustion engine in which the camshaft is positioned above and between the valve and a cam follower seat member in...
4671222 Valve actuating device in an internal combustion engine having four valves inclined in a V configuration and a central spark plug per cylinder  
A device for actuating valves in an internal combustion engine comprise four valves (9, 10, 11, 12) inclined in a V configuration and a central spark plug (3) per cylinder (6), each cylinder (6)...
4662323 Overhead cam type valve actuating apparatus for internal combustion engine  
An OHC type internal combustion engine with four valves per cylinder in which a single cam shaft and a single rocker arm shaft are mounted directly above one another and centered above the...
4660515 Head structure for OHC type internal combustion engine  
A cylinder head construction for an overhead cam type internal combustion engine using rocker arms for actuating the valves from the camshaft. A plurality of bearing portions or supports are spaced...
4658769 V-type internal combustion engine with centrally located drive gears coupling double overhead camshafts  
This V-type engine has first and second banks of cylinders, each odd in number, with first intake and exhaust cam shafts provided along the first cylinder head and second intake and exhaust cam...
4658770 Supporting structure for rocker arms for engine valves  
A supporting structure for rocker arms for engine valves includes an engine having a cylinder head, a valve provided on the cylinder head and adapted for either of intake and exhaust purposes, a...
4651704 Breather arrangement for cam case of internal combustion engine  
A breather arrangement for an internal combustion engine includes a hollow cam shaft which is disposed in a cam case of the engine. Blow-by gas in the cam case is admitted into an axial bore of the...
4649874 Oil supply system for valves in an internal combustion engine  
An oil supply system for the overhead valve actuating mechanism of an internal combustion engine. A cam follower is engaged by a hydraulic tappet for constantly maintaining positive contact among...
4638774 Valve actuating mechanism for internal combustion engine  
A valve actuating mechanism for an internal combustion engine that permits the use of a plurality of valves per combustion chamber. There are a greater number of intake valves than exhaust valves...
4637356 Valve actuating mechanism for internal combustion engine  
An improved valve actuating mechanism for an internal combustion engine for operating three closely adjacent valves from three lobes of the same camshaft. The centermost lobe operates its valve...
4637357 Tappet arrangement for engine valve train  
A valve arrangement for an internal combustion engine that permits the use of a plurality of closely spaced valves. The valves are all directly actuated by means of thimble tappets that have...
4635679 Single rocker device for actuating two valves  
The invention has for purpose to provide a simple and light device for actuating, with equal, and even zero, operating clearances, two valves having a rod associated with a single rocker. This...
4635592 Valve control for an internal combustion engine  
In an internal combustion engine with a cylinder (1), the cylinder head (2) has four valves (3, 4) inclined towards each other and arranged to be radially aligned with respect to the combustion...
4633826 Overhead cam shaft type V-engine cylinder block  
A cylinder block construction for an overhead cam shaft type V-engine having a timing chain passage formed to allow the cylinder block to be used for diametrically opposite cylinders. Timing chain...
4632073 Camshaft mounting mechanism for DOHC engine of motorcyle  
Two embodiments of overhead camshaft internal combustion engines that provide a compact arrangement through a simplified bearing and thrust arrangement for the camshafts. In accordance with each...
4628874 Roller follower axle retention  
A hydraulic tappet has a roller receiving recess in one end thereof defining spaced parallel axle supporting wall portions. Cross holes are formed in the supporting wall portions with an annular...
4624222 Intake valve structure for internal combustion engine  
Several embodiments of valve arrangements for internal combustion engines that permit the use of three intake valves per cylinder while maintaining a small clearance volume and minimum surface area...
4622941 Cylinder-head unit for an internal combustion engine having three valves  
The two inlet pipes and the exhaust pipe (6) open onto the same lateral wall (7) of the cylinder-head, the exhaust pipe opening onto this lateral wall at a level between the level of the inlet...
4621597 Cylinder head for double overhead cam engine  
A cylinder head for DOHC type internal combustion engine with a center block integrally formed over each cylinder with portions for supporting the rocker arm bearings and a central hole for...
4617882 Apparatus for driving camshafts in an internal combustion engine  
A camshaft driving apparatus for an internal combustion engine including cam gears rotatably supported by respective camshafts, a timing gear rotatably supported by a crankshaft, and a gear train...
4617880 Valve actuating apparatus for optionally resting the operation of a valve in internal combustion engine  
A valve actuating apparatus for intake and exhaust valves in an internal combustion engine having an end pivot type rocker arm. The rocker arm is composed of two arms interconnected by a connecting...
4617881 Actuating mechanism for multiple valve internal combustion engine  
Two embodiments of valve arrangements for internal combustion engines that permits the use of a plurality of valves for a given combustion chamber while operating all of the valves through a...
4615308 Auxiliary mechanism driving device in a V-type engine  
An improved, compact auxiliary mechanism driving device in a V-type, overhead-camshaft engine in which a driving section for engine auxiliary mechanism is mounted on a camshaft without increasing...
4615309 Valve actuating mechanism for internal combustion engine  
Several embodiments of valve actuating mechanisms for internal combustion engines that facilitate the use of more intake and/or exhaust valves than the other type of valve. This is accomplished by...
4615307 Hydraulic valve lifter for variable displacement engine  
A hydraulic valve lifter for a variable displacement engine includes a body member, a check valve disposed within the body member for controlling a pressure chamber and a reservoir chamber, a...
4615312 Motorcycle engine having automatic decompression device  
A motorcycle engine having an automatic decompression device mounted to an end face of a camshaft of the engine for opening at least one valve by utilizing the centrifugal forces produced by the...
4614171 Rocker arm construction  
An improved rocker arm for an internal combustion overhead cam engine, the rocker arm having a cam roller journaled therein on needle bearings and the like, and being so constructed to provide a...
4612885 Camshaft bearing arrangement for overhead cam engine  
An arrangement for rotatably supporting first and second camshafts associated with first and second series of plural valves for the combustion chamber of an internal combustion engine. A cylinder...
4612887 Valve actuating apparatus for resting the operation of a valve in internal combustion engine  
A valve actuating apparatus for intake and exhaust valves in an internal combustion engine having an end pivot type rocker arm. The rocker arm is composed of two arms interconnected by a connecting...
4611558 Valve actuating apparatus in internal combustion engine  
A valve actuating apparatus for intake and exhaust valves in an internal combustion engine having a swing rocker arm consisting of two arms rotatably interconnected by means of a connecting shaft,...
4610224 Configuration for V type double overhead cam shaft engine utilizing interchangable intake cam shafts and interchangable exhaust cam shafts  
A configuration for a V type double overhead cam shaft engine which has left and right cylinder banks and cylinder heads. Left and right intake cam shafts are fitted to the left and right cylinder...
4606304 One-piece engine block  
An internal-combustion engine includes an engine block, a plurality of parallel cylinders and oil chambers defined in the engine block; intake valves, exhaust valves, overhead valve controls and...
4594972 Valve mechanism  
The invention is concerned with a desmodromic valve operating mechanism, i.e. one in which the valve is mechanically closed instead of relying on the action of a spring. The valve operating...
4593657 Camshaft bearing arrangement  
An internal combustion engine of the multiple valve type embodying an improved supporting arrangement for a camshaft that directly operates one valve and indirectly operates a pair of valves. The...
4592314 Valve actuating mechanism for internal combustion engine  
An improved lubricating and valve actuating system for an internal combustion engine having plural valves per combustion chamber. Two valves are operated by the same camshaft, one directly and the...
4585101 Power transmission mechanism for automotive vehicles  
A power transmission mechanism for automotive vehicles comprises a variable displacement engine which can be selectively shifted from the driving with all cylinders to the driving with a limited...
4584976 Reservoir height extender for lash adjuster assembly  
A reservoir height extender for a lash adjuster assembly (150) comprising an inverted hollow insert member (60) disposed in fluid reservoir chamber (42) within a plunger member (40) of assembly...
4576127 Valve timing control device for an internal combustion engine  
A first timing belt transmits rotation of a crankshaft to an exhaust valve operating camshaft whose rotation is in turn transmitted through a second timing belt to an intake valve operating...
4576128 Valve operation stopping means for multi-cylinder engine  
A valve operation stopping mechanism for multi-cylinder internal combustion engine to cause selected cylinders to be inoperative under low load conditions for economy. A drive rocker arm is...
4572118 Variable valve timing for four-stroke engines  
A device for internal combustion engines particularly automobile engines, which varies the opening duration and the lift of the timing valves. This variation results from the utilization of all or...
4570584 General-purpose internal combustion engine with vertical crank shaft  
A general-purpose internal combustion engine has a vertically extending crank shaft. The engine includes intake and exhaust valves disposed in overhead relationship to a cylinder head having an...
4565168 Valve control device, particularly for valves of internal combustion engines  
A valve control device of the type having a rotating cam and a cam drive to communicate to a valve a reciprocating lifting movement in opposition to the closing force exerted by a return spring....
4563985 Cam shaft drive of an internal combustion engine  
The cam shaft carried in the cylinder head is driven by the crank shaft with a gear drive that is borne or supported partly in the crank housing and partly in a gear housing flangely attached to...
4561391 Four valve for cylinder engine with single overhead camshaft  
A compact four valve per cylinder overhead camshaft valve train arrangement for use with small cylinder bore engines is made possible by the mounting of a single overhead camshaft at a position...
4558667 Valve driving apparatus for an internal combustion engine  
A valve driving apparatus in an internal combustion engine having plural valve stems in a cylinder head on an upper portion of a main body of an engine which are aligned radially about the cylinder...
4558676 Two-cylinder, four-stroke-cycle, double-piston engine, especially air-flow-cooled for motorcycles  
An especially air-flow-cooled two-cylinder, four-stroke-cycle, double-piston engine (1) for the preferred use in motorcycles has for each cylinder (32) a camshaft (14) disposed horizontally on top...
4556025 Engine valve mechanism having valve disabling device  
An engine valve mechanism including a rocker arm mechanism having a cam actuated arm which is swingable actuated by a cam and a valve actuating arm which functions to open to the engine valve when...
4554895 Hydraulic lifter for internal combustion engines  
A hydraulic lifter incorporated into a rocker arm of a valve train in an internal combustion engine includes a cylinder formed in the rocker arm, a plunger arranged slidably in the cylinder, a...
4553473 Valve actuating mechanism for engines  
A DOHC engine of the V-type has two cylinder heads each detachably secured to a cylinder block. A crank shaft on the block drives two intermediate shafts, one on each cylinder head, by means of an...