Hydraulic continuously-variable-transmission.

摘要

[OBJECT] In a transmission provided with a static, hydraulic continuously-variable-speed transmission mechanism comprising a hydraulic circuit having a closed circuit comprising a hydraulic pump connected to the crankshaft of an engine, and a hydraulic motor having a motor output shaft coaxial with the axis of rotation of the hydraulic pump, and contained in a casing with its axis extended in parallel to that of the crankshaft, the static, hydraulic continuously-variable-speed transmission mechanism is formed in a small construction and has an increased degree of freedom of selection of speed change ratio. [CONSTITUTION] An output shaft (18), i.e., the final output shaft of a transmission (T) is supported for rotation on a casing (12) with its axis extended in parallel to that of a static, hydraulic continuously-variable-speed transmission mechanism (10), and a motor output shaft (17) and the output shaft (18) are interlocked by a reduction mechanism (20).