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AssigneeMazda Motor Corporation
InventorsKouichi Hatamura, Tetsuo Hiraoka, Kazuaki Hokazono, Shinji Seike
Estimating the term…
An induction system for a V-type internal combustion engine having a first and second banks respectively constituted with a plurality of cylinders and shifted with respect to each other in the direction of alignment of the cylinders, including intake ports provided to face a space between two banks, surge tank means for leading intake air to each intake port arranged above one of the banks, first intake passage means curvedly formed for feeding intake air from the surge tank means to the cylinders of the first bank, each being connected with the side portion of the surge tank means at one end thereof and with one of the intake ports of the cylinder of the first bank at the other end thereof and consisting of an upstream intake passage means and a downstream passage means, and second intake passage means curvedly formed for feeding intake air from the surge tank means to the cylinders of the second bank, each being connected with the side portion of the surge tank means at one end thereof and with one of the intake ports of the cylinder of the second bank and consisting of an upstream intake passage means and a downstream intake passage means, said first intake passage means being connected with the surge tank means at a point higher than a point where the second intake passage is connected with the surge tank means.
An induction system for a V-type internal combustion engine having a first bank and a second bank respectively constituted with a plurality of cylinders and shifted with respect to each other in the direction of alignment of said cylinders, including intake ports provided to face the space between said first and second banks, each being communicated with one of said cylinders, fuel injection means for injecting fuel into said cylinders, each provided in the vicinity of one of said intake ports, fuel distributing means for distributing fuel to said fuel injection means arranged in the direction of alignment of said cylinders in a space between said first and second bank, each connected with one of said fuel injection means, a first and second surge tank means having a predetermined inner volume, each feeding intake air to one of said banks, said first surge tank means overlying said second surge tank means, said first and second surge tank means being arranged in the direction of alignment of said cylinders above said first bank, first independent intake passage means each connected with the side portion of said first surge tank means at one end thereof and with one of said intake ports of the cylinders constituting the first bank to lead intake air thereto at the other end, and second independent intake passage means each connected with the side portion of said second surge tank means at one end thereof and with one of said intake ports of the cylinders constituting said second bank at the other end thereof, said first and second independent intake passage means consisting of downstream intake passage means and upstream intake passage means, each said downstream intake passage means connected with one of said intake ports and extending toward a space between said fuel distributing means, each said upstream intake passage means being curved above the fuel distributing means for distributing fuel to the fuel injector means provided for the cylinders of the first bank and connected with said downstream intake passage means at one end thereof and with said first or second surge tank means at the other end thereof.
An induction system for a V-type internal combustion engine having a first bank and a second bank respectively constituted with a plurality of cylinders and shifted with respect to each other in the direction of alignment of said cylinders including intake ports provided to face a space between said first and second banks, each communicated with one of said cylinders, a surge tank means having a predetermined inner volume for feeding intake air to banks, said surge tank means being arranged above said first bank in the direction of alignment of said cylinders, first independent intake passage means each connected with a side portion of said surge tank means at one end thereof and with one of said intake ports of the cylinders constituting said first bank to lead intake air thereto at the other end, and second independent intake passage means each connected with a side portion of said surge tank means at one end thereof and with one of said intake ports of the cylinders constituting said second bank at the other end thereof, said first independent intake passage means being connected with said surge tank means at a point higher than a point where said second independent intake passage means is connected with said surge tank means, said first and second independent intake passage means respectively consisting of downstream intake passage means connected with said intake port and upstream intake passage means connected with said downstream intake passage means at one end thereof and with said surge tank means at another end thereof, each said downstream intake passage means extending toward a space between said first and second banks from one of said intake ports, each said upstream intake passage means extending curvedly from a connecting portion where it is connected with said downstream intake passage means to said surge tank means, said connecting portion being substantially horizontal, said first upstream intake passage means and said first downstream intake passage means being curved to the same direction, said second upstream intake passage means and said second downstream intake passage means being curved reversely.
Dependencies are inferred from the claim text.