Piston-cylinder unit, method for producing the piston-cylinder unit
AssigneeStabilus GmbH
InventorsHermann Schneider, Rainer Sauer, Frank Born, Martin Schleich
Life of this patent
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Abstract
The invention relates to a piston-cylinder unit (100) comprising a cylinder (110) filled with a fluid (150), a piston (120) slidably guided in the cylinder (110), a piston rod (130) attached to the piston (120), a seal (140), and a lubricant in contact with the seal (140) and with the cylinder (110), the piston (120) and/or the piston rod (130). The lubricant is a polyalphaolefin oil or a polyalkylene glycol oil. The seal (140) is made of chlorine-free acrylonitrile butadiene rubber. The invention also relates to a method for producing the piston-cylinder unit (100).
Claims9
A piston cylinder unit (100) comprising
- a. a cylinder (110) filled with a fluid (150),
- b. a piston (120) slidably guided in the cylinder (110),
- c. a piston rod (130) attached to the piston (120),
- d. a seal (140) made of acrylonitrile butadiene rubber and
- e. a lubricant in contact with the seal (140) and with the cylinder (110), the piston (120) and/or the piston rod (130),
- characterised in that
- f. the lubricant is a polyalphaolefin oil or a polyalkylene glycol oil, and
- g. the seal (140) is chlorine-free, wherein the seal (140) contains neither chlorine or chlorine compounds added intentionally, nor chlorine or chlorine compounds transferred into the seal (140) during manufacture of the seal (140).
Dependencies are inferred from the claim text.