To provide an internal combustion engine which can efficiently recover lubrication oil contained in a blow-by gas with a limited capacity.SOLUTION: An engine includes: a crank case 41 having a right case half body 52 and a left case half body which are integrated on coupling surfaces; and a breather chamber 129 having multiple small chambers 215 which are defined over the right case half body 52 and the left case half body. The right case half body 52 has a blow-by gas inflow port 202 leading to the breather chamber 129. The multiple small chambers 215 include a first small chamber 215 leading to the blow-by gas inflow port 202, a second small chamber 216b, and a third small chamber 216c. The blow-by gas inflow port 202 is disposed at a right lower corner part 217aa at the right case half body 52 side of the first small chamber 215. The first small chamber 215 and the second small chamber 216b are connected by a left upper corner part at the left case half body side. The second small chamber 216b and the third small chamber 216c are connected by a left lower corner part 217aa at the right case half body 52 side.SELECTED DRAWING: Figure 14

    【課題】限られた容積で効率的にブローバイガスに含まれる潤滑油を回収可能な内燃機関を提供する。【解決手段】エンジンは、結合面で一体化される右側ケース半体52および左側ケース半体を有するクランクケース41と、右側ケース半体52と左側ケース半体とに跨がって区画される複数の小部屋215を有するブリーザ室129とを備え、右側ケース半体52は、ブリーザ室129に繋がるブローバイガス流入口202を有し、複数の小部屋215は、ブローバイガス流入口202に繋がる第一小部屋215と、第二小部屋216bと、第三小部屋216cとを含み、ブローバイガス流入口202は、第一小部屋215の右側ケース半体52側の右下隅部217aaに配置され、第一小部屋215と第二小部屋216bとは、左側ケース半体側の左上隅部で繋がれ、第二小部屋216bと第三小部屋216cとは、右側ケース半体52側の右下隅部217aaで繋がれている。【選択図】図14


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    Title :

    INTERNAL COMBUSTION ENGINE


    Additional title:

    内燃機関


    Contributors:

    Publication date :

    2019-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F01M Schmierung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , LUBRICATING OF MACHINES OR ENGINES IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES , Zylinder, Kolben oder Gehäuse für Brennkraftmaschinen



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