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Class 123/54.7 - Eight cylinder


Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder including eight or more cylinders.
No. of patents: 22
Last issue date: 05/06/2008


NumberTitleIssue Date
7367323Eight-cylinder engine
An eight-cylinder engine including fuel injection valves provided for each of the eight cylinders. A first valve drive unit for driving four of the eight fuel injection valves to open and close by energizing the four fuel injection valves and a second valve drive un...
05/06/2008
7293538Overhead 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
7275511Intake manifold assembly
An intake assembly is provided for a sequentially fired eight cylinder V-type internal combustion engine including a cylinder block having a first band of cylinders and a second bank of cylinders. The assembly includes first, second, third, and fourth intake plenums...
10/02/2007
7273026Roller 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
7258094Engine block component brace
One or more component braces may be installed into the upper valley of a V-styled engine block to provide resistance to deformation of the block when used in an operating motor. The component braces include first and second mounting portions separated by a body port...
08/21/2007
7219632Narrow angle V-type engine
A V-engine having a plurality of cylinders (2) arranged alternately in two banks comprises a combustion chamber provided for each of the cylinders (2), an intake port (20) which connects the combustion chamber to an intake manifold (50), ...
05/22/2007
7168405Camshaft drive mechanism
Apparatus includes left and right inline type cylinder heads essentially identical to one another and each having an intake side, the left and right cylinder heads being combined into a “V” configuration, so that the two intake sides face one another. A left-hea...
01/30/2007
7100548V-type 8-cylinder four cycle internal combustion engine
A V-type 8-cylinder four cycle internal combustion engine has a bank angle of 90 deg. and employs a double link type piston-crank mechanism for transmitting the force of each piston to a crankshaft. The double link type piston-crank mechanism comprises an upper link...
09/05/2006
7070147Lubricating oil filling structure for an engine
The lower end of a filler tube is attached to a service hole formed on a cylinder block in a horizontally opposed engine on a rear side of the engine, e.g., on side opposite from which an output shaft projects. The filler tube is provided with an elbow at the lower ...
07/04/2006
5937804Engine cylinder block and valley cover therefor
An engine cylinder block assembly for a V-type engine wherein inner walls of the cylinder banks define a relatively oil free valley which is closed by a rigid valley cover to provide additional stiffness to the inside walls of the blocks, thereby stiffeni...
08/17/1999
5513601Aircraft engine
The invention relates to an engine for an aircraft. The engine includes an engine housing having a drive shaft and a power output shaft. The power output shaft and the drive shaft are separately journalled within the engine housing. The power output shaft...
05/07/1996
5131355Balancing arrangement in 8-cylinder, 4-stroke engines
In an arrangement for improving the mass balancing of the valve operating mechanism of an 8-cylinder, 4-stroke internal combustion engine with two rows of cylinders, which are disposed in V-shaped fashion and which have at least one camshaft 20, 22 with v...
07/21/1992
5020490Valve seat arrangement
A valve seat arrangement is provided in which a ceramic valve seat is secured to a valve seat holder. The valve seat holder is directly connected to the cylinder head of the block of the internal combustion engine between the exhaust passage and the combu...
06/04/1991
4936265V-type internal combustion engine
A V-type internal combustion engine having two overhead camshafts per cylinder bank is provided with an absolutely synchronous rotational-angle adjustment between two inlet camshafts and the engine crankshaft to minimize torque fluctuations in the cam dri...
06/26/1990
4903646V-type cylinder block of internal combustion engine
A V-type cylinder block of internal combustion engine is disclosed, which provides two angularly disposed cylinder banks each having a cylinder row of cylinders. A plurality of ribs rise generally from head bolt hole portions defined between two cylinders...
02/27/1990
4627394Cylinder block for internal combustion engine
In a cylinder block for an internal combustion engine, a pair of opposed side walls thereof extending in the direction of the row of cylinders therein are respectively formed of a plurality of bight portions. The bight portions in each side wall differ in...
12/09/1986
4212281Low weight reciprocating engine
An internal combustion V-8 engine is disclosed having an aluminum semi-permanent mold head cast by a low-pressure die-cast process and an iron block cast by the evaporative casting method. The block and head have controlled thickness walls throughout to o...
07/15/1980
4198947Modular engine construction
A modular internal combustion engine is provided in which a single crankcase can be adapted to a plurality of different types of engine configurations. The crankcase is open at its top so that each upper side edge of the crankcase forms a mounting flange ...
04/22/1980
4175503Method of making air engine housing
A light metal die-cast head and cast iron block employ a low volume cooling system which cooperates with the differing thermal conductivity properties of said head and block. The cooling concept eliminates the conventional intricate water jacket and repla...
11/27/1979
4136648Low weight reciprocating engine
An internal combustion V-8 engine is disclosed having an aluminum semi-permanent mold head cast by a low-pressure die-cast process and an iron block cast by the evaporative casting method. The block and head have controlled thickness walls throughout to o...
01/30/1979
4116172Naturally aspirated eight cylinder internal combustion engine
A naturally aspirated eight cylinder internal combustion V-engine in which the cylinders of each bank of cylinders are divided into groups of two cylinders each, and in which the inlet ports of each group pertaining to one and the same cylinder bank are b...
09/26/1978
3978828V-Type internal combustion engine
A V-8 internal combustion engine has its two cylinder banks disposed at an included angle of 65° and each adjacent pair of crankpins of a two-plane, counterweighted crankshaft displaced at an angle of 25° with respect to each other. Sharp edges initiall...
09/07/1976
 
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