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
14.12.2023
Patent
Elektronische Ressource
Englisch
Hydraulic pump device for hydraulic jacks and control method of hydraulic pump device
Europäisches Patentamt | 2016
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