Vegetable oil-based hydraulic fluid and transmission fluid

Details Vegetable oil-based hydraulic fluid and transmission fluid Vegetable oil-based hydraulic fluid and transmission fluid

C - Chemistry, Metallurgy

10

M

C10M 101/04 (2006.01) C10M 105/24 (2006.01) C10M 105/34 (2006.01) C10M 171/02 (2006.01)

Patent

CA 2740526

The invention relates to the use of vegetable oil having a natural viscosity index (VI) of greater than or equal to 200, said oil having a portion of monounsaturated fatty acids of at least 80%, a portion of double unsaturated fatty acids of 1- 10% at maximum, and a portion of triple unsaturated fatty acids of less than 1%, preferably less than 0.5% and particularly preferably less than or equal to 0.1%, as a pressure medium in hydraulic systems and/or as transmission fluid. Part of the vegetable oil can be used in the form of an unsaturated ester of the vegetable oil. It can also contain at least one additive in a portion of 2 - 5% weight, selected from anti-oxidants, copper deactivators, anti-corrosion agents, wear protection agents and/ or anti-foaming agents. The shear stability of the vegetable oil used according to the invention equals 0.7% or less, measured over 20 hours.

L'invention concerne l'utilisation d'huile végétale ayant un indice de viscosité naturel (VI) supérieur ou égal à 200 qui comprend une fraction d'acide gras mono-insaturé d'au moins 80 %, une fraction d'acide gras bi-insaturé de 1 - 10 % au maximum et une fraction d'acide gras tri-insaturé inférieure à 1 %, de préférence inférieure à 0,5 % et idéalement inférieure ou égale à 0,1 %, comme liquide de pression dans des systèmes hydrauliques et/ou comme huile à engrenages. Une partie de l'huile végétale peut être utilisée sous la forme d'un ester insaturé de l'huile végétale. Elle peut aussi contenir au moins un additif dans une proportion de 2 - 5 % au maximum, additif qui est choisi parmi des antioxydants, des désactivateurs de cuivre, des agents anticorrosion, des agents de protection contre l'usure et/ou des agents antimoussants. La stabilité au cisaillement de l'huile végétale utilisée selon l'invention, mesurée sur une période de 20 heures, est de 0,7 % ou moins.

Affiliated with

Also associated with

Rating

Vegetable oil-based hydraulic fluid and transmission fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vegetable oil-based hydraulic fluid and transmission fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vegetable oil-based hydraulic fluid and transmission fluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1810412