A hydraulic pump may include: a screw including: an internal tubular cavity, and an internal port in fluid communication with the internal tubular cavity; a nut surrounding a longitudinal portion of the screw; and a cylindrical tube fitting within the internal tubular cavity of the screw, the cylindrical tube having a hollow channel that is in fluid communication with the internal tubular cavity of the screw.
HYDRAULIC PUMP
HYDRAULISCHE PUMPE
POMPE HYDRAULIQUE
2025-02-19
Patent
Electronic Resource
English
Hydraulic pump device for hydraulic jacks and control method of hydraulic pump device
European Patent Office | 2016
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