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US 4,369,627 AGranted
Internal combustion engine
AssigneeCummins Engine Company, Inc.
InventorsEdward W. Kasting, Richard E. Glasson
Life of this patent
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AssigneeCummins Engine Company, Inc.
InventorsEdward W. Kasting, Richard E. Glasson
Estimating the term…
This disclosure relates to a turbocharged reciprocating piston type of internal combustion engine. The engine includes a block, a head fastened to the upper side of the block, and a rocker housing fastened to the upper side of the head. The head has intake air and exhaust passages formed in it between intake and exhaust openings and intake and exhaust ports of the engine cylinders. The turbocharger is mounted on one side of the engine block, and the exhaust openings are in the head on the same side as the turbocharger. Exhaust manifold ducts connect the exhaust openings with the turbocharger. The intake openings are formed in the upper surface of the head and air intake passages are formed in the rocker housing. An air intake duct and manifold connect the turborcharger with the passages of the housing. The intake air passages of the head are formed and located to provide an advantageous heat transfer relation between the intake air and the surrounding engine ports.
An internal combustion engine comprising a block having at least one pair of engine cylinders formed therein, a head fastened to said block and having two air intake ports and two exhaust ports formed therein for each cylinder, said ports communicating with the associated cylinders, a turbocharger mounted on one side of said block and said head, said two air intake ports and said two exhaust ports of each cylinder being arranged at substantially 90.degree. intervals around the cylinder axis, one of said exhaust ports being adjacent said one side, one of said intake ports being adjacent the opposite side of said head, and the remaining intake and exhaust ports being between said one intake and said one exhaust ports, an exhaust opening for each cylinder formed in said one side of said head, an exhaust passage for each cylinder formed in said head and communicating with said exhaust opening and exhaust ports of the associated cylinder, said head including an upper wall, a bottom wall, and internal walls between said upper and bottom walls, an intake opening formed in said upper wall of said head substantially between the cylinders of said pair of cylinders, said walls forming an enlarged intake air chamber in said head and communicating with said intake opening, said internal walls extending around said intake air ports of said pair of cylinders, said chamber extending to said bottom wall and including the areas adjacent said air intake ports of said pair of cylinders, the intake air flowing generally parallel to said cylinders out of said chamber and through said air ports, a rocker housing fastened to said upper wall of said head, an intake air passage formed in said rocker housing, an intake air duct connected to said turbocharger and to said housing on said one side of the engine which is adjacent the exhaust openings, said intake air passage of said rocker housing communicating with said intake air duct and with said intake opening of said head, and exhaust ducts on said one side and connecting said turbocharger with said exhaust openings.
Apparatus for an internal combustion engine including a block that has at least one pair of cylinders formed therein, said apparatus comprising intake and exhaust ducts on one side of said block, a head adapted to be secured to the block and form the upper side of said cylinders, said head having a bottom wall that is adapted to engage said block, an upper wall which is opposite to said bottom surface, internal walls between said upper and lower walls, and one side which is adjacent to said ducts, two intake air ports and two exhaust ports formed in said bottom wall of said head above each of said cylinders and angularly spaced around the axis of each cylinder, said intake air ports of each cylinder being spaced substantially 90.degree. apart and one of said intake air ports being between said cylinders, said exhaust ports of each cylinder being spaced substantially 90.degree. apart and one of said exhaust ports being adjacent said one side, said intake air ports for said pair of cylinders being adjacent each other, said walls forming an enlarged chamber in said head between said upper and bottom surfaces and between said pair of said cylinders and in air flow communication with said intake air ports of said pair of said cylinders, an air intake opening formed in the upper wall of said head above said chamber and connected to said chamber for receiving intake air, said internal walls extending around said intake air ports of said pair of cylinders, said chamber extending to said bottom wall and including the areas adjacent said air intake ports of said pair of cylinders, the intake air flowing generally parallel to said cylinders out of said chamber and through said air ports, and an exhaust passage formed in said head and connected to each pair of said exhaust ports, said chamber being between said exhaust passages, said intake and exhaust ducts being respectively connected to said air intake opening and to said exhaust passage.
In an internal combustion engine including a block that has at least one pair of cylinders formed therein, each of said cylinders having an axis and said axes of said pair of cylinders lying on a centerline, the improvement comprising a head adapted to be secured to the block and forming the upper side of said cylinders, said head including an upper wall, a bottom wall, and internal walls between said upper and bottom walls, two intake air ports and two exhaust ports formed in said bottom wall of said head above each of said cylinders, one of said intake ports and one of said exhaust ports of each cylinder lying substantially on said centerline and the other of said intake ports and exhaust ports of each cylinder being angularly spaced approximately 90.degree. from said one ports, an exhaust passage formed in said head for each cylinder, each of said exhaust passages extending from one side of said head to the two exhaust ports of the associated cylinder, said other exhaust port that is angularly spaced approximately 90.degree. from said one exhaust port of each cylinder being the closest port to said one side, said walls forming an enlarged intake air chamber in said head generally between said pair of cylinders, said intake air passage communicating with said intake ports of both of said cylinders, said internal walls extending around said intake air ports of said pair of cylinders, said chamber extending to said bottom wall and including the areas adjacent said intake air ports of said pair of cylinders, the intake air flowing generally parallel to said cylinders out of said chamber and through said air ports.
Apparatus for an internal combustion engine including a block that has at least one pair of cylinders formed therein, each cylinder having an axis, and intake and exhaust ducts on one side of said block, said apparatus comprising a head adapted to be secured to the block and to form the upper side of said cylinders, said head having a bottom wall that is adapted to engage said block, an upper wall which is opposite to said bottom wall, internal walls between said upper and bottom walls, and one side which is adjacent to said ducts, two intake air ports and two exhaust ports formed in said bottom wall of said head above each of said cylinders and angularly spaced around the axis of each cylinder, said intake air ports of each cylinder being adjacent each other and one of said intake air ports being between said cylinders, said exhaust ports of each cylinder being adjacent each other and at least one of said exhaust ports being adjacent said one side, said upper and lower walls and said internal walls forming an enlarged chamber between said pair of said cylinders, said internal walls extending around said intake air ports of said pair of cylinders, said chamber extending to said bottom wall and including the areas adjacent and encompassing said intake air ports of said pair of said cylinders, an air intake opening formed in said upper wall of said head above said chamber and between said cylinders and connected to said chamber for conveying intake air to said chamber, the intake air flowing generally parallel to said axis out of said chamber and through said air ports, said chamber having a flow area that is substantially greater than the flow area of said air intake opening and said air ports, and a relatively short exhaust passage for each cylinder formed in said head and connected to each pair of said exhaust ports and extending to said one side, said chamber being between said exhaust passages, and said air intake opening and said exhaust passages being adapted to be connected to said intake and exhaust ducts respectively.
In an internal combustion engine including a block that has at least one pair of cylinders formed therein, each of said cylinders having an axis and said axes of said pair of cylinders lying on a centerline, the improvement comprising a head adapted to be secured to the block and forming the upper side of said cylinders, said head including an upper wall, a bottom wall and internal walls between said upper and bottom walls, two intake air ports and two exhaust ports formed in said bottom wall of said head above each of said cylinders, one of said intake ports and one of said exhaust ports of each cylinder lying substantially on said centerline and the other of said intake ports and exhaust ports of each cylinder being angularly spaced approximately 90.degree. from said one ports, an exhaust passage formed in said head for each cylinder, each of said exhaust passages extending from one side of said head to the two exhaust ports of the associated cylinder, said other exhaust port that is angularly spaced approximately 90.degree. from said one exhaust port of each cylinder being the closest port to said one side, said walls forming an enlarged intake air chamber in said head between said cylinders and extending above and being in flow communication with said air ports of both cylinders, and an intake air opening formed in said upper side between said exhaust passages and in flow communication with said intake air chamber, said chamber having a flow area that is substantially greater than the flow area of said intake air opening and said intake ports, said internal walls extending around said intake air ports of said pair of cylinders, said chamber extending to said bottom wall and including the areas adjacent said intake air ports of said pair of cylinders, the intake air flowing generally parallel to said cylinders out of said chamber and through said air ports.
Dependencies are inferred from the claim text.