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Class 123/197.4 - Crankshaft and connecting rod


Subclass of Class 123 - Internal-combustion engines
Definition: Apparatus wherein the transmitting mechanism includes a
No. of patents: 309
Last issue date: 04/17/2012


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NumberTitleIssue Date
8156918Internal combustion engine
An internal-combustion engine comprised of a cylinder with at least one piston which is moving to and fro in it, and a piston rod (6), which transforms the piston's movement to rotary motion in a crank shaft (9), and including equipment for a forcible ...
04/17/2012
8011343Multi link type piston-crank mechanism of internal combustion engine
A multi link type piston-crank mechanism comprises an upper link that has one end pivotally connected to a piston of the engine through a piston pin, a lower link that is pivotally connected to the other end of the upper link through an upper pin and rotatably dispo...
09/06/2011
8001948Kinetic energy generation apparatus having increased power output
A kinetic energy generation apparatus having increased power energy includes a casing, a fixed gear, and a free gear, disposed on the inner side of the fixed gear and has a gear ratio equal to 3:1. The apparatus also includes a transmission portion, with a bushing d...
08/23/2011
7975667Crankshaft-free drive shaft and piston assembly of a split-cycle four-stroke engine
A drive shaft and pistons assembly of a split-cycle four-stroke engine that contains a drive rotary shaft that supports at least two circular eccentrics pivotally connected to the first ends of connecting rods, the other ends of which are pivotally connected to the ...
07/12/2011
7938096Engine start control device and method
An engine start control device includes a starter energizing circuit that has two transistors connected in series and energizes a starter relay, and an idling stop ECU that performs energization control to turn on a transistor and energizes the starter relay when au...
05/10/2011
7931005Generating electricity with a hypocyloidally driven, opposed piston, internal combustion engine
An electrical generator includes an opposed piston, internal-combustion engine with a piston and a hypocycloidal drive connected by a rod to the piston. The construction of the hypocycloidal drive imposes a sinusoidal period on the linear motion of the piston and co...
04/26/2011
7909012Pulling rod engine
The piston is connected to the crankshaft via a connecting rod, while the crankshaft is disposed between the wrist pin and the combustion chamber. This way the combustion is shifted to the slow dead center, enabling the diesel to perform at higher revs, improving th...
03/22/2011
7891334Engine with variable length connecting rod
A four-cycle internal combustion engine comprising a variable length connecting rod, two crank gears, and two drive gears; the first end of the connecting rod is connected to a piston; the second end of the connecting rod is connected to a yoke assembly comprising t...
02/22/2011
7814881Engine connecting rod and crankshaft assembly
A four cycle piston engine has a crankshaft that includes a crank pin and a guide pin rotatable as a unit around the crankshaft rotational axis. The connecting rod has a linear trackway that slidably engages the guide pin so that the rod has linear slidable motion r...
10/19/2010
7743746Coating for connecting rods and bearings in an internal combustion engine
Disclosed is a connecting rod for a combustion engine, comprising a small connecting-rod eye that is provided with a plain bearing surface and is used for accommodating a piston pin, and a large connecting-rod eye which is provided with a plain bearing surface and e...
06/29/2010
7739998Engine having axially opposed cylinders
This invention relates to an engine (5) having axially opposed cylinders (C). The engine (5) has a first cylinder (C) having a first cylinder opening and a first cylinder head (H), a first piston (10) that reciprocates in the first cylinder open...
06/22/2010
7703432Bearing system having a floating bearing mechanism
A bearing mechanism for mounting a connecting rod to a crankshaft is disclosed. The bearing mechanism may include a first bearing half-shell forming a first semicylindrical member and a second bearing half-shell forming a second semicylindrical member. The second be...
04/27/2010
7650870Crankshaft beam piston engine or machine
Disclosed are crankshaft, single-plate cam and beam mechanisms that provide significant improvements in performance for 2- & 4-stroke engines, compressors and pumps. These cost effective mechanisms include linkages with the new and improved use of pivoting arms that...
01/26/2010
7640910Opposed piston internal-combustion engine with hypocycloidal drive and generator apparatus
An opposed piston, internal-combustion engine including a cylinder with a bore and opposed pistons disposed within the bore is provided with one or more hypocycloidal drives that convert the linear motion of a piston to rotary output motion. An electrical generator ...
01/05/2010
7584738Torsionally damped rotary shafts
A rotary shaft, such as an automotive crankshaft, for rotation about an axis carries an eccentric substantially circular section, radially extending flap (6), connected to the radially outer surface of which is an annular housing (16) affording a cavit...
09/08/2009
7556014Reciprocating machines
A four-stoke reciprocating internal combustion engine includes the capability to change the distance between the crankshaft axis and the big end of the connecting rod and hence the maximum cylinder displacement within a combustion cycle. This provides for a given in...
07/07/2009
7552707Efficiencies for cam-drive piston engines or machines
Disclosed are crankshaft, single-plate cam and beam mechanisms that provide significant improvements in performance for 2 & 4-stroke engines, compressors and pumps. These cost effective mechanisms include linkages with the new and improved use of pivoting arm...
06/30/2009
7503305Rotatory crank shaft
An apparatus for converting linear motion into rotary motion or vice versa comprising a shaft (12) which is rotatable about a fixed axis (14) and carrying a circular cam (16) mounted eccentrically relative to that axis (14), the cam (1...
03/17/2009
7455041Reciprocating-piston internal combustion engine
A reciprocating-piston internal combustion engine has a crank drive and a transmission lever indirectly coupled with the piston and intersecting the cylinder axis. The lever is articulated onto the crank drive's connecting rod and onto an adjustable bearing guided i...
11/25/2008
7441530Optimal heat engine
A conservative force coupled to the piston of a reciprocating-piston engine, refrigerator, or compressor acts to counter the pressure force on the piston that arises from the change of volume of the working substance accompanying a change in the piston position. As ...
10/28/2008
7438041Connecting rod-crank piston pin for the carrying out of an eccentric connecting rod system preferably for internal-combustion engines
A piston pin carries out an eccentric coupling of connecting rod and crank connected with the driving shaft. The piston pin is shaped like a cylinder, has two cuts disposed orthogonally to the axis of the piston pin. The cuts form three sectors. The two external sec...
10/21/2008
7434562Internal combustion engine with parallel crankshafts
An internal combustion engine which includes two parallel crankshafts positioned in crankcases, a cylinder positioned on a side of the crankcases, a piston movably disposed within the cylinder, and connecting rods linked to the piston and extending from respective c...
10/14/2008
7418939Crankshaft assembly with coated crank pin
The invention provides a motorcycle having a frame, an engine coupled to the frame, and a crankshaft assembly. The crankshaft assembly includes a first flywheel half having an aperture, a crank pin including a first end portion, a second end portion opposite the fir...
09/02/2008
7392781Crankshaft of piston crank mechanism
A crankshaft mechanism is disclosed that takes advantage of component makeup and orientation to cancel out inertial force. A crankshaft of the crankshaft mechanism includes at least one counterweight that is arranged in combination with the rest of the mechanism to ...
07/01/2008
7367305Internal combustion engine and connecting rod therefor
A connecting rod of an internal combustion engine, and an internal combustion engine including the connecting rod, a piston, a crankshaft and a float bearing as main moving parts. A piston is connected to a connecting rod by a spherical joint and has radial ribs on ...
05/06/2008
7357104Internal combustion engine piston crank mechanism
A piston crank mechanism has an upper link coupled to a piston by a piston pin, a lower link having a crankpin journal, wherein the crankpin journal is coupled to a crankpin of a crankshaft and is coupled to the upper link by an upper pin, and a control link is coup...
04/15/2008
7350506Variable stroke property engine
Provided is a variable stroke property engine that can prevent an increase in the resistance to the engine owing to the contact between the variable stroke piston mechanism and lubricating oil. In a variable stroke property engine equipped with a variable piston str...
04/01/2008
7343893Internal combustion engine
An internal combustion engine includes a connecting rod that connects a crankpin and a piston. The connecting rod has first and second connecting rods, and a guide piston is disposed at a connecting portion between the first and second connecting rods. Deformed port...
03/18/2008
7337759Engine
The invention involves an engine that the cylinder block contains a coupled piston formed by a main piston, an external piston. The external piston is sleeved outside of the main piston and uses the rods on the two sides to connect to the heart-shape groove on the t...
03/04/2008
7334558Slide body internal combustion engine
An internal combustion engine includes a slide body having a plurality of rigidly mounted pistons on opposite ends of the slide body. The slide body reciprocates and is connected to a flywheel by shaft and bearing which extends through an angled track in the slide b...
02/26/2008
7331324Crankshaft rotary valve
A crankshaft rotary valve that controls fluid flow between a port located circumferentially on the crankshaft and a crankcase chamber formed by a piston, cylinder, crankcase and crankshaft. As the crankshaft rotates, a channel in the crankshaft communicates with the...
02/19/2008
7328682Efficiencies for piston engines or machines
Disclosed are crankshaft, single-plate cam and beam mechanisms that provide significant improvements in performance for 2 & 4-stroke engines, compressors and pumps. These cost effective mechanisms include linkages with the new and improved use of pivoting arms that ...
02/12/2008
7305938Stroke-variable engine
A stroke-variable engine includes a pivot shaft which is rotatably supported in a crankcase so as to be rotatable about an eccentric axis parallel to a crankshaft and which is connected to a control rod so that a rotational power reduced at a reduction ratio of 1/2 ...
12/11/2007
7293542Motor with rotary connecting rod bolt
The motor according to the present invention consists of a piston (1), cylinder (2), connecting rod (3), connecting rod rotary bolt gear wheel (4), connecting rod rotary bolt (5), crank shaft (6), crank shaft bolt (7)...
11/13/2007
7290508Lower link for piston crank mechanism of internal combustion engine
A lower link for a piston crank mechanism of an internal combustion engine includes an upper section, a lower section, and a crank pin bearing section disposed between the upper section and the lower section, and mounted on a crank pin of a crank shaft. One of the u...
11/06/2007
7290518Piston-connecting rod spherical coupling structure
A spherical coupling structure for a piston and a connecting rod, wherein a protrusion provided to the reverse side of a crown of a piston and a holding member for holding a small end are slidably fitted onto a small end, and a holding/fastening part for holding the...
11/06/2007
7290507Lower link for piston crank mechanism of engine
A lower link for an engine piston crank mechanism includes first and second half members joined by bolts to form a crankpin bearing portion. The first half member includes a first pin boss portion to connect the lower link with a first link which is one of an upper ...
11/06/2007
7287494Multicylinder internal combustion engine with individual cylinder assemblies and modular cylinder carrier
An internal combustion engine that includes individual, liquid-cooled, cylinder assemblies mounted separately to a common cylinder carrier. A modular cylinder carrier that is assembled from separate cylinder mounting modules and main bearing bulkheads. ...
10/30/2007
7263965Floating crank shaft
An engine with two crank shafts. One crank shaft stationary or secured to the block by conventional main bearings. The other crank shaft is referred to as the floating crank moves in a radius back and forth along one side of the stationary crank. The cranks d...
09/04/2007
7228838Internal combustion engine
An internal combustion engine includes a piston reciprocating in a cylinder; a crankshaft; and a multilink piston-crank mechanism linking the piston with the crankshaft. The multilink piston-crank mechanism includes an upper link having a first end connected with th...
06/12/2007
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