CPC C10M 105/32 (2013.01) [C10M 103/02 (2013.01); C10M 171/02 (2013.01); C10M 171/06 (2013.01); C10M 2201/0413 (2013.01); C10M 2201/0613 (2013.01)] | 5 Claims |
1. A lubrication method, comprising:
storing a lubricating oil composition which comprises an ester as a lubricating base oil in a storage unit, and
applying the lubricating oil composition stored in the storage unit to a sliding unit in a refrigerant circulation system via a circulation type supply unit,
wherein the sliding unit is a unit which is provided with a pair of sliding members facing each other and relatively moving, and slides through a sliding surface in at least one of the sliding members;
wherein at least one of the sliding members comprises at least one selected from the group consisting of
a liquid crystal polymer and
a polyetheretherketone;
wherein the sliding member further comprises a solid lubricant and a reinforcement fiber; and
wherein a viscosity of the lubricating base oil based on the ISO viscosity grade is VG2 or more and VG3 or less.
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