| 摘要 |
PURPOSE:To simply form a pressure buffer chamber and as well to enhance the function of separation of oil from blowby gas, by utilizing the space between the left and right banks of a cylinder block to form the pressure buffer chamber in which a baffle plate is disposed. CONSTITUTION:A closed-pressure buffer chamber 27 communicated with the inside of the crank casing 8 through a communication hloe 26 is formed between the left and right banks of a cylinder block 4. With this arrangement, there may be prevented an increase in the amount of leakage of blowby gas which leaks from each combustion engine 12 to the casing 8 during the combustion and expansion stroke and as well variations in the internal pressure of the casing 8 under the action of each piston 6. Further, the chamber 17 is disposed therein with a baffle plate 36 for preventing oil splash from being directly sucked into a communication passage 33, and an oil separator 39 is formed by means of the baffle plate 36 and a lid member 39. With this arrangement, the V-type engine may be made compact without the outside sections of the left and right banks 2,3 being bulged. |
