Intake system for V-type internal combustion engine
AssigneeNissan Motor Co., Ltd.
InventorsIsaya Matsuo, Suehiro Urabe, Eiichi Fujisawa
Life of this patent
Estimating the term…
Abstract
An intake system for a V-type internal combustion engine having two banks. The intake system is comprised of two sub-collectors disposed above the respective two banks of the engine and fluidly connected with cylinders in the banks. A main collector is disposed above and between the two banks of the engine and fluidly connected through a throttle device with the two sub-collectors. The main collector is supplied with air from an air filter. The throttle device is located at the rear end side of the engine and has throttle valves which respsectively control air flows to the two sub-collectors in response to operation of an accelerator pedal.
Claims10
An intake system for a V-type internal combustion engine having first and second banks, comprising:
- first and second sub-collectors disposed above the first and second banks, respectively, each sub-collector defining thereinside an air flow chamber which is in fluid communication with cylinders in the banks of the engine;
- a main collector disposed above and between the first and second banks, said main collector defining thereinside an air flow chamber in fluid communication with each sub-collector air flow chamber;
- and
- a throttle device through which intake air flows from said main collector to said first and second sub-collectors, said throttle device being disposed at rear end side of the engine and arranged to control air flow from said main collector to said first and second sub-collectors.
An intake system for a V-type eight-cylinder internal combustion engine having first and second banks, comprising:
- first and second sub-collectors disposed above the first and second banks, respectively, each sub-collector defining thereinside an air flow chamber which is in fluid communication with each cylinder of the engine;
- a main collector disposed above and between the first and second banks, said main collector defining therein an air flow chamber in fluid communication with each sub-collector air flow chamber;
- a throttle device through which intake air flows from said main collector to said first and second sub-collectors, said throttle device being disposed at rear end side of the engine and arranged to control air flow from said main collector to said first and second sub-collectors;
- a first group of intake pipes which are connected with said first sub-collectors, said first group including first and second intake pipes which are connected at their first end with opposite end parts of said first sub-collector and fluidly connected at their second end with the cylinders which are located opposite end parts of the second bank, and third and fourth intake pipes which are connected at their first end with positions between said opposite end parts and fluidly connected with the cylinders which are located in an intermediate part of the first bank;
- a second group of intake pipes which are connected with said second sub-collectors, said second group including fifth and sixth intake pipes which are connected at their first end with opposite end parts of said second sub-collector and fluidly connected at their second end with the cylinders in the first bank, and seventh and eighth intake pipes which are connected at their first end with a part between said opposite end parts of said second sub-collector and fluidly connected at their second end with the cylinders which are between the cylinders to which said first and second intake pipes are connected;
- and
- means for preventing interference of intake air between the cylinders to which the first group of intake pipes are connected and the cylinders to which the second group of intake pipes are connected.
Dependencies are inferred from the claim text.