| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress decline in efficiency caused by rise in a temperature of working fluid at low cost in a passenger type working machine including an HST.SOLUTION: An HST 24 is mounted to a side surface of a traveling transmission case 9. A steering support part 46 is installed in a projecting manner at a front end of the traveling transmission case 9, and a power steering unit is fixed to the steering support part 46. Inside of the steering support part 46 is a void space, and a deceleration gear is disposed in the void space. a reception port 52 formed in the steering support part 46 and a discharge port 53 of the HST 24 are connected to each other by a drain pipe 54. High-temperature working fluid discharged from the HST 24 is cooled by the steering support part 46 and is returned to inside of the traveling transmission case 9. Ribs for reinforcement and promotion of cooling are formed in the steering support part 46.</p> |
