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7296553 Engine balancer apparatus  
A balancer apparatus including a first balancer and a second balancer. The first balancer includes a first balance weight and the second balancer includes a second balance weight and wherein the...
7273028 Noise suppressing mechanism for balance gear of engine crankshaft  
A noise suppressing mechanism for balance gear system of an engine crankshaft is disclosed. The balance gear system includes a primary gear, a secondary gear, and a torsional spring and is fit on a...
7270104 Engine balancer system  
An engine balancer system is provided in which a balancer housing disposed so as to face an oil pan beneath a crankshaft is formed by joining an upper housing and a lower housing via mating faces,...
7252066 Integrated drive sprocket and gear for balance shaft  
An idler shaft assembly for an internal combustion engine provides significant cost savings eliminates processing and assembly steps, and provides accurate orientation of components. The idler...
7252060 Torsional damper for balance shafts  
A drive system for an internal combustion engine including an endless chain connecting a drive sprocket on a crankshaft to a driven sprocket on a camshaft. The drive system is comprised of at least...
7234432 Crankshaft for V-type six-cylinder engine  
A crankshaft for a V-type six-cylinder engine is equipped with first through sixth crankpins, first through fourth crank journals, and first through ninth arms for connecting the crank pins and the...
7225784 Oil supply apparatus  
A oil supply apparatus includes a pair of balancer shafts arranged at an upper space of an oil pan provided at a lower part of an engine, a scavenge pump activated by one of the pair of balancer...
7201622 Internal combustion engine including improved balance shaft structure, and personal watercraft incorporating same  
An internal combustion engine is provided for a personal watercraft in which a portion of the engine that is enlarged to accommodate a balance shaft is minimized in size, whereby the internal...
7201131 Crankcase cover plate  
In a cover plate for obturating a crankcase of an internal combustion engine at the bottom end thereof, which cover plate includes suction areas for collecting engine lubricant and on which a...
7191742 Diesel aircraft engine  
The present invention is an engine, including two banks of cylinders in a flat, opposed cylinder arrangement and a crankshaft having a plurality of paired throws, the two throws of each respective...
7178497 Inertial torque reaction management with selectively engageable counter rotating component  
A system and method for managing inertial torque reaction of a powertrain include a selectively engageable counter-rotating component to reduce or eliminate torque reaction on stationary powertrain...
7159558 Engine having centralized mass  
An engine is constructed such that respective centers of gravity of a crank shaft, a balancer shaft and a cylinder are positioned close to one another and the mass of the engine is thus...
7147077 Engine starter mechanism arrangement for snow vehicles  
An engine starter mechanism arrangement for snow vehicles, in which a starter mechanism is disposed so as to maintain excellent traveling stability of the snow vehicle. A crankshaft ( 7 ) extends...
7131405 Rotating cylinder valve engine  
A rotating cylinder valve engine provides variable compression to the engine by axially moving the rotatable cylinder towards or away from the piston. The volumetric center of the combustion...
7104239 Engine crankcase structure  
To miniaturize an engine, to concentrate heavy masses and to reduce friction loss of a balancer. An engine crankcase structure in which a crankcase is vertically partitioned into an upper case and...
7089904 Lubricating structure for engines, lubricating structure for engines for snow vehicles, and snow vehicle  
A lubricating structure for engines, wherein an oil feed pump and an oil recovery pump are disposed so as to avoid interference between the oil feed and recovery pumps and a clutch mechanism and an...
7086366 Energy efficient fluid pump  
A dual pumping element fluid system for an engine or other system which reduces the driving power consumption by unloading one pumping element through the use of recirculation when a fluid pressure...
7077094 Balance shaft gear carrier drive  
An engine drive assembly includes a camshaft gear, and a first idler gear engaged with the camshaft gear. The engine drive assembly further includes a crankshaft gear engaged with the first idler...
7070526 Accessory drive for driving a balance shaft  
An engine accessory drive that has a primary drive driveable by a crankshaft of the engine is disclosed. The accessory drive includes a rotational member mounted on a drive shaft and driveable by...
7047927 Engine balancer system  
An engine balancer system is provided in which a balancer housing ( 17 ) disposed so as to face an oil pan beneath a crankshaft is formed by joining an upper housing ( 29 ) and a lower housing ( 30...
7040273 Mass balancing for internal combustion engine  
An internal combustion engine includes a crankcase, a cylinder, a piston, a crankshaft, and a piston connecting rod. A counterweight connects to the crankshaft through a counterweight connecting...
7037088 Dual balance shaft pump assembly  
A dual fluid pump assembly driven by respective shafts of a dual balancing shaft assembly for an engine of an automotive vehicle. A shaft housing rotatably supports primary and secondary balancing...
7036478 Engine operated machine system  
In an engine operated machine system including a hollow support rod connected at one end to an engine through a vibration insulator, an auxiliary weight is mounted at the other end of a crankshaft...
7017545 Balancer device of engine  
A first balancer shaft includes a shaft extension portion extending forward, to which a driven sprocket is attached. A case member includes a first bearing portion supporting the balancer shaft...
6990942 Balancer structure for engine  
A balancer structure for an engine includes a first balancer shaft, a second balancer shaft, a crankshaft having a crank gear and balancer gears on the first and second balancer shafts provided...
6988479 Integrated drive sprocket and gear for balance shaft  
An idler shaft assembly for an internal combustion engine provides significant cost savings eliminates processing and assembly steps, and provides accurate orientation of components. The idler...
6971361 Balance shaft assembly  
Balance shaft assemblies are used in internal combustion engines to dampen primary and second order inertia forces. Known balance shaft assemblies typically require precision manufacturing and a...
6968822 Engine  
Cap segment surfaces ( 9 a ) and ( 9 b ) of a larger-diameter end portion ( 7 ) of a connecting rod ( 5 ) are positioned at an upper and a lower portions of a crank pin ( 8 ) and are inclined from...
6964253 Balancer apparatus of engine  
A balancer apparatus of an engine includes a crank case, a crankshaft supported by the crank case and including a crank web having a pin connecting portion connected with a crank pin and a counter...
6959780 Vibration damping system for an engine mounted on a vehicle  
A vibration damping system for an engine mounted on a vehicle has mounting elements attached to frames of the vehicle, through which elements the engine is mounted on the frames, a damping weight...
6957639 Inclined engine  
In an inclined engine where a cylinder ( 2 ) projects from a crank case ( 1 ) obliquely and upwardly, when seen in a direction parallel to a center axis ( 3 ) of a crank shaft ( 10 ), under a...
6932037 Variable CAM timing (VCT) system having modifications to increase CAM torsionals for engines having limited inherent torsionals  
In a variable cam timing (VCT) system that has a crank shaft coupled to at least one cam shaft. The system has at least one timing gear associated with the crank shaft or a cam shaft. The timing...
6928977 Adapter, to interface counter-rotating torque producing engine mechanisms with stationary support accessories, for torque free output and torque sensitive environments  
The present invention is a novel hydraulic/electric, rotating interface for torque producing engines, including internal combustion engines, which enables a rigidly mounted motor to isolate the...
6918369 Lubrication system for engine  
A marine engine incorporates an engine body defining first and second bearing sections. A crankshaft is journaled at the first bearing section for rotation about a first axis extending generally...
6904884 Balance device for engines  
A balancer device for engines, in which first and second balancer shafts are arranged in parallel to a crankshaft and the crankshaft rotatingly drives first and second balancer weights at the same...
6895919 Even-firing, fully balanced, V-twin engine  
A V-twin engine includes a two cylinder reciprocating apparatus, having a pair of connecting rods joined to a crankshaft through a pair of connecting rod journals that are centered at a common...
6889650 Internal-combustion engine having balancing shafts  
A first balancing shaft and a second balancing shaft are provided for an internal-combustion engine having four cylinders in a V-arrangement. The free inertial forces of the second order are...
6880659 Component arrangement for snowmobile  
A snowmobile including a frame assembly and a drive assembly coupled to the frame assembly. The drive assembly including a drive belt adapted to contact a ground surface to propel the snowmobile...
6880512 Balancer device for engine  
A balancer housing of a balancer device disposed to face an oil pan below a crankshaft of an engine, includes oil discharge bores for discharging an oil accumulated in the balancer housing with the...
6874458 Balance system for single cylinder engine  
A balance system and method for balancing piston forces within a single cylinder internal combustion engine are disclosed. The balance system includes a crankshaft, a counterbalance assembly and a...
6868816 Internal combustion engine with balancer shaft and method of assembling the same  
An internal combustion engine includes a balancer housing, a balancer shaft having an eccentric weight portion and disposed within the balancer housing so as to be parallel with and rotatable in...
6868815 Reciprocating piston engines  
An internal combustion engine includes one or more pistons ( 3 ) connected to a common crankshaft ( 4 ), a balancer shaft ( 10 ) connected to the crankshaft ( 4 ) to be rotated thereby at the same...
6854358 Compensating shaft assembly for piston engines  
A balance shaft unit for internal combustion engines consists of at least one balance shaft ( 6, 7 ) supported in a balance casing ( 5 ) and counterweights ( 8 ) connected onto it. In order to...
6848411 Secondary balancer of vertical engine of outboard motor  
A secondary balancer is used for an outboard motor vertical in-line engine which includes a crankcase, a cylinder block and a cylinder head, which are arranged in this order from a front side of...
6840208 Drive for one or more engine accessories  
Engine accessory drives are used with internal combustion engines to drive one or more accessories and are conventionally driven off a front end drive assembly. However, driving the accessories off...
6827056 Vibration friction damper  
A vibration damper includes a crankshaft drive sprocket, a bearing, a friction module, and at least one bumper. The bearing is seated directly upon the crankshaft of the engine and receives the...
6789522 Engine for aeronautical applications  
The present invention provides an improved engine for aeronautical applications which includes a core engine block having a drive shaft rotatably mounted within the core engine block and a motive...
6772725 Balance shaft, housing for balance shaft and engine oil return passage  
An engine including an engine oil return passage for returning engine oil from a cylinder head side to an oil pan having a balance shaft forming a balancing system for said engine; and a housing...
6772654 Coriolis crankshaft  
A crankshaft being integrated with stemmed, inertia-forced lobes that increase engine and motor efficiency, in which a respective lobe extends and branches out to a single traversal side of...
6758183 Joint structure for oil pump shaft and balancer shaft  
A joint portion 33 of an oil pump shaft 19 and a balancer shaft (output-side balancer shaft 12 ) is provided in an open space between opposite surfaces of a sidewall 4 b of an oil pump...
Matches 1 - 50 out of 362 1 2 3 4 5 6 7 8 >