HYDRAULIC PUMP

• Main Author: TOSHIYA AKAMI
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2019
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The present invention provides a hydraulic pump capable of reducing a starting torque of a drive source. The hydraulic pump (10) includes: a cylinder block (30) having a plurality of cylinder bores (32) and disposed so as to be rotatable; pistons (38) each retained in associated one of the cylinder bores (32) so as to be movable; a swash plate (40) for controlling the amount of movement of the pistons (38) in accordance with the size of the tilt angle; a first pressing unit (50) for pressing the swash plate (40) in such a direction as to reduce the tilt angle of the swash plate (40); and a second pressing unit (60) for pressing the swash plate (40) in such a direction as to increase the tilt angle of the swash plate (40) by the pressure supplied from the outside. 本发明提供一种液压泵，其能够减小驱动源的起动转矩。液压泵(10)包括：缸体(30)，其具有多个缸孔(32)，且被配置为能够旋转；活塞(38)，其移动自如地保持在各缸孔(32)内；斜板(40)，其根据偏转角的大小来控制活塞(38)的移动量；第1推压部件(50)，其用于朝向斜板(40)的偏转角变小的方向推压斜板(40)；以及第2推压部件(60)，其用于在从外部供给来的压力的作用下朝向斜板(40)的偏转角变大的方向推压斜板(40)。