초록 ▼

An oil pressure generator 20 includes a drive gear 30, a driven gear 32, and a crescent 34, which constitute a gear pump unit, as well as one-way clutches 36 and 38 that respectively interlock with two rotating shafts 42 and 46 when the rotating shafts 42 and 46 rotate in an identical direction rela

An oil pressure generator 20 includes a drive gear 30, a driven gear 32, and a crescent 34, which constitute a gear pump unit, as well as one-way clutches 36 and 38 that respectively interlock with two rotating shafts 42 and 46 when the rotating shafts 42 and 46 rotate in an identical direction relative to the drive gear 30. In case that both the rotating shafts 42 and 46 rotate in the interlocking direction, the corresponding one-way clutch interlocks with the rotating shaft having a greater revolving speed, thereby driving the drive gear 30. This structure enables the oil pressure generator 20 to produce anoil pressure through rotation of the rotating shaft having a greater revolving speed out of the two rotating shafts 42 and 46.

대표청구항 ▼

[ What is claimed is:] [1.] An oil pressure generator for producing an oil pressure by a rotational power given to an input shaft, said oil pressure generator comprising:at least two coaxial rotating shafts receiving different rotational powers; andselection means for selecting one of said at least

[ What is claimed is:] [1.] An oil pressure generator for producing an oil pressure by a rotational power given to an input shaft, said oil pressure generator comprising:at least two coaxial rotating shafts receiving different rotational powers; andselection means for selecting one of said at least two coaxial rotating shafts as said input shafts, wherein said input shaft has an opening at a center of said input shaft and said selection means comprises at least two one-way clutches that are provided in said opening and are respectively attached to said at least two coaxial rotating shafts, each of said one-way clutches transmitting the rotational power when a corresponding one of said at least two coaxial rotating shafts rotates in said predetermined direction, and transmitting no rotational power when said corresponding one of said at least two coaxial rotating shafts rotates in a direction opposite to said predetermined direction.