Hydraulic fluid, hydraulic equipment containing this fluid and a concentrate of this fluid
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0033170A2
公开(公告)日:1981-08-05
A hydraulic fluid which is an oil-in-water emulsion and comprises from 90-99%w of water, from 0.5-5 %w of a lubricating oil with a kinematic viscosity at 40°C of at least 160 cS, preferably at least 300 cS, and an emulsifier, which preferably contains one type of polymeric component which is derived from an oil-soluble complex monocarboxylic acid, and another type of polymeric component which is the residue of a water-soluble compound containing polyoxyalkylene chains.
一种水包油型乳化液的液压油,包含 90-99%w 的水、0.5-5%w 的润滑油(40°C 时运动粘度至少为 160cS,最好至少为 300cS)和乳化剂,乳化剂最好包含一种聚合物成分(从油溶性复合单羧酸中提取)和另一种聚合物成分(含有聚氧亚烷基链的水溶性化合物的残留物)。