Title:
HYDRAULIC PUMP
Document Type and Number:
WIPO Patent Application WO/2018/158755
Kind Code:
A3
Abstract:
A hydraulic pump with an integrated distribution valve comprises a body and a cover, and also at least two assemblies, a first assembly associated with the cover and a second assembly associated with the body, wherein the first assembly is associated with the cover in order to guide and carry the pump, the second assembly is associated with the body to aspirate oil from the tank, convey it from inside the pump to a distribution shaft, and send the oil to a cylinder or to the tank, and comprises: a distribution shaft for directing the oil and at least one pressure compensation plate arranged at one of the ends of the pump shafts and comprising: openings to receive the pump shafts; a seal between a pressure zone of the pump and a lubrication zone of the pump shafts, the seal separating the pressure zone of the pump from an intake zone of the pump: and a communication channel for the hydraulic fluid between the intake zone and the lubrication zone of the pump shafts, the channel in the compensation plate being recessed in the face of the compensation plate away from the pump shafts.
Inventors:
DA SILVA BERNARDES RUI JORGE (PT)
Application Number:
PCT/IB2018/051406
Publication Date:
November 08, 2018
Filing Date:
March 05, 2018
Export Citation:
Assignee:
ABER EMBRAIAGENS E COMANDOS HIDRAULICOS ANTONIO BERNARDES LDA (PT)
International Classes:
F04C2/18; F01C21/10; F04C15/00
Foreign References:
| EP1985859A2 | 2008-10-29 | |||
| DD218412A1 | 1985-02-06 | |||
| DE102013202918A1 | 2014-08-28 |
Attorney, Agent or Firm:
TEIXEIRA DE CARVALHO, Anabela (PT)
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