Air induction system for an internal combustion engine

Claim 2

An air induction system for use with an internal combustion engine having a cylinder block with a pair of angularly disposed banks of cylinders therein, each bank having an N/2 number of cylinders extending in a line longitudinally of the engine and each bank having a cylinder head extending the longitudinal length of a bank of cylinders, each cylinder head having an N/2 number of intake passages therein, each intake passage positioned to correspond with the cylinder with which it cooperates to permit the flow of working fluid thereto, the air induction system including; a. an elongated box-like header housing adapted to be connected to the cylinder heads and having a width corresponding to the wdith therebetween, said box-like elongated header housing having walls including a top wall and a first side wall and a second side wall forming a chamber therein, each of said side walls having a N/2 number of side wall passages therethrough in flow relationship to said intake passages, and an elongated, narrow air inlet aperture through said top wall extending approximately the full longitudinal length of said header housing; b. an air intake duct connected to said top wall and encircling said elongated narrow aperture; c. throttle valve means including an elongated narrow throttle valve positioned within said elongated chamber for reciprocal movement relative to said top wall between a closed position blocking flow through said aperture and an open position permitting flow through said aperture; d. operator controlled cam means journalled in said header housing and operatively associated with said throttle valve to effect movement thereof between said open position and said closed position therof; and, e. a first group of N/2 number of header tubes and a second group of N/2 number of header tubes positioned within said elongated chamber, one end of each header tube of said first group of header tubes being connected to said first side wall and encircling one of said side wall passages in said first side wall and one end of each header tube of the second said group of header tubes being connected to said second side wall and encircling one of said side wall passages in said second side wall, and the other ends of said header tubes of said first group and of said second group being positioned within said chamber.

Claim 3

The air induction system of claim 1 wherein said air inlet aperture is centrally located in said top wall between said first side wall and said second side wall and wherein said operator controlled cam means includes a shaft rotatably positioned by said walls in alignment with said throttle valve and a pair of spaced apart cam plates affixed to said cam shaft, said cam plates each having a peripheral surface for engaging said throttle valve in a sliding contact to effect said reciprocal movement thereof.

Claim 4

The air induction system of claim 1 wherein said first group of header tubes and said second group of header tubes are separated into oppositely facing sets of tubes, each tube of the first group of header tubes of a set being oppositely inclined from a corresponding tube of the second group of header tubes of the set so as to prevent interference between the tubes in each set.

Claim 5

An air induction system for use with an internal combustion engine having a cylinder block with a pair of angularly disposed banks of cylinders therein, each bank having an N/2 number of cylinders extending in a line longitudinally of the engine and each bank having a cylinder head extending the longitudinal length of a bank of cylinders, each cylinder head having an N/2 number of intake passages therein, each intake passage positioned to correspond with the cylinder with which it cooperates to permit the flow of working fluid thereto, the air induction system including: a. an elongated box-like header housing adapted to be connected to the cylinder heads and having a width corresponding to the wdith therebetween, said box-like elongated header housing having walls including a top wall and a first side wall and a second side wall forming a chamber therein, said first side wall and said second side wall each having an N/2 number of side wall passages therethrough in flow relationship to said intake passages, and an elongaged, narrow air inlet aperture through said top wall extending approximately the full longitudinal length of said header housing, said air inlet aperture being centrally located in said top wall between said first side wall and said second side wall; b. an air intake duct connected to said top wall and encircling said elongated narrow aperture; c. throttle valve means including an elongated narrow throttle valve positioned within said elongated chamber for reciprocal movement relative to said top wall between a closed position blocking flow through said aperture and an open position permitting flow through said aperture; d. operator controlled cam means journalled in said header housing and operatively associated with said throttle valve to effect movement thereof between said open position and said closed position thereof, said operator controlled cam means includes a shaft rotatably positioned by said walls in alignment with said throttle valve and a pair of spaced apart cam plates affixed to said cam shaft, said cam plates each having a peripheral surface for engaging said throttle valve in a sliding contact to effect said reciprocal movement thereof; and, e. a first group of N/2 number of header tubes and a second group of N/2 number of header tubes positioned within said elongated chamber, one end of each header tube of said frist group of header tubes being connected to said first side wall and encircling one of said side wall passages in said first side wall and one end of each header tube of the second said group of header tubes being connected to said second side wall and encircling one of said side wall passages in said second side wall, and the other ends of said header tubes of said first group and of said second group being positioned within said chamber, adjoining header tubes of said first group of header tubes and of said second group of header tubes being inclined relative to each other.

Claim 6

An air induction system for use with an internal combustion engine having a cylinder block with a pair of angularly disposed banks of cylinders therein, each bank having an N/2 number of cylinders extending in a line longitudinally of the engine and each bank having a cylinder head extending the longitudinal length of a bank of cylinders, each cylinder head having an N/2 number of intake passages therein, each intake passage positioned to correspond with the cylinder with which it cooperates to permit the flow of working fluid thereto, the air induction system including: a. an elongated box-like header housing adapted to be connected to the cylinder heads and having a width corresponding to the wdith therebetween, said box-like elongated header housing having walls including a top wall and a first side wall and a second side wall forming a chamber therein, said first side wall and said second side wall each having an N/2 number of side wall passages therethrough in flow relationship to said intake passages, and an elongaged, narrow air inlet aperture through said top wall extending approximately the full longitudinal length of said header housing, said air inlet aperture being centrally located in said top wall between said first side wall and said second side wall; b. an air intake duct connected to said top wall and encircling said elongated narrow aperture; c. throttle valve means including an elongated narrow throttle valve positioned within said elongated chamber for reciprocal movement relative to said top wall between a closed position blocking flow through said aperture and an open position permitting flow through said aperture; d. operator controlled cam means journalled in said header housing and operatively associated with said throttle valve to effect movement thereof between said open position and said closed position thereof, said operator controlled cam means includes a shaft rotatably positioned by said walls in alignment with said throttle valve and a pair of spaced apart cam plates affixed to said cam shaft, said cam plates each having a peripheral surface for engaging said throttle valve in a sliding contact to effect said reciprocal movement thereof; and, e. a first group of N/2 number of header tubes and a second group of N/2 number of header tubes positioned within said elongated chamber, one end of each header tube of said frist group of header tubes being connected to said first side wall and encircling one of said side wall passages in said first side wall and one end of each header tube of the second said group of header tubes being connected to said second side wall and encircling one of said side wall passages in said second side wall, and the other ends of said header tubes of said first group and of said second group being positioned within said chamber, adjoining header tubes of said first group of header tubes and of said second group of header tubes being inclined relative to each other.