VIBRATION SUPPRESSION STRUCTURE OF ENGINE

• Main Authors: ICHIKAWA KAZUO, HONDA YUICHI
• Format: Patent
• Language: English; Japanese
• Published: 05.07.2022
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a vibration suppression structure of an engine which can reliably suppress vibration of a roll balancer and an output shaft of the engine.SOLUTION: A vibration suppression structure of an engine is provided with: a first gear 32 which rotates integrally with an output shaft 18; and a roll balancer 40 which is connected to the output shaft 18 through the first gear 32 and rotates in a direction opposite to a rotation direction of the output shaft 18. The roll balancer 40 is provided with: a body part 43; and a second gear 42 which engages with the first gear 32. A diameter of the body part 43 is set so as to be larger than a diameter of the second gear 42. An enclosing chamber 50 extending in a circumferential direction is formed inside the body part 43 which is located closer to the outer periphery side than the second gear 42, and a powder 70 is enclosed in the enclosing chamber 50.SELECTED DRAWING: Figure 5 【課題】ロールバランサおよびエンジンの出力軸の振動を確実に抑制できるエンジンの振動抑制構造を提供する。【解決手段】出力軸１８と一体に回転する第１ギア３２と、第１ギア３２を介して出力軸１８に連結されて出力軸１８と反対方向に回転するロールバランサ４０とを設け、ロールバランサ４０に、本体部４３と、第１ギア３２と噛み合う第２ギア４２とを設ける。本体部の４３直径を第２ギア４２の直径よりも大きくし、第２ギア４２よりも外周側の本体部４３の内部に周方向に延びる封入室５０を形成して、封入室５０に粉体７０を封入する。【選択図】図５