To provide a hydraulic mechanical continuously variable transmission capable of taking out hydraulic energy from a hydraulic transmission part to the outside.SOLUTION: The hydraulic mechanical continuously variable transmission includes a differential mechanism including an input element connected to a driving source, a first output element connected to a first pump motor, and a second output element connected to a second pump motor, a hydraulic transmission part connecting the first and second pump motors via a closed circuit for outputting the rotation of the first or second pump motor to an output shaft, a first oil path connected to a high pressure side oil path of the closed circuit, a second oil path connected to hydraulic equipment, and a selector valve capable of selecting a first state that the first oil path and the second oil path are connected to each other or a second state that the first oil path and the second oil path are cut off from each other.SELECTED DRAWING: Figure 3
【課題】油圧変速部の油圧エネルギーを外部に取り出すことができる油圧機械式無段変速機を提供すること。【解決手段】駆動源と接続される入力要素、第1のポンプモータと接続される第1の出力要素および第2のポンプモータと接続される第2の出力要素を備える差動機構と、第1および第2のポンプモータを閉回路で接続するとともに、第1または第2のポンプモータの回転を出力軸へ出力する油圧変速部と、閉回路の高圧側油路と接続される第1の油路と、油圧機器と接続される第2の油路と、第1の油路と第2の油路とを接続する第1の状態、および第1の油路と第2の油路とを遮断する第2の状態を切り替え可能な切替弁と、を備える油圧機械式無段変速機。【選択図】図3
HYDRAULIC MECHANICAL CONTINUOUSLY VARIABLE TRANSMISSION
油圧機械式無段変速機
2019-03-28
Patent
Electronic Resource
Japanese
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