Rotary compressor with water miscible lubricant
AssigneeAtlas Copco Airpower, Naamloze Vennootschap
InventorGuido Peeters
Life of this patent
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Abstract
Rotary compressor including at least one rotor (2), which is rotatably mounted in a compression chamber (1) by liquid lubricated bearings (4), a device (13-15-16) for injecting water into the compression chamber, and a supply device for supplying (1) a liquid based on polyalkylene glycol miscible with water as the bearing lubricant.
Claims17
A rotary compressor, comprising a rotor (2) rotatably mounted in a compression chamber (1) by liquid lubricated bearings (4);
- means (13-15-16) for always injecting substantially only water on the rotor in the compression chamber (1);
- and means for supplying liquid lubricant to the bearings (4), wherein the liquid lubricant supplied to the bearings (4) comprises polyalkylene glycol miscible with water.
A method of lubricating a fluid compressor including a compression chamber and a compressor rotor device in the compression chamber supported for rotation by liquid lubricated bearings adjacent the compression chamber, comprising:
- using as a bearing lubricant a liquid based on polyalkylene glycol miscible with water;
- and
- always injecting substantially only water into the compression chamber onto the rotor device during compressor operation to lubricate and seal the compression chamber.
Dependencies are inferred from the claim text.