| 摘要 |
PROBLEM TO BE SOLVED: To reduce a load on a drive source in a gear pump including a plurality of drive shafts. SOLUTION: Pressure of a first inlet flow passage 4a of the first inlet flow passage 4a and a second delivery flow passage 5b which are arranged across a fourth outside clearance area RA4 formed by a gear 1d with a second drive shaft 9b installed is increased in comparison with pressure of the second delivery flow passage 5b by an unloading device 6. Torque applied to the second drive shaft 9b installed to the gear 1d forming the fourth outside clearance area RA4 between the first inlet flow passage 4a and the second delivery flow passage 5b is transmitted to the first drive shaft 9a. COPYRIGHT: (C)2011,JPO&INPIT |
