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US 2009/0214361 A1Published application
Oil-less compressor with seal-dust protection
OwnerTraian Voicu, Florin Hristu +1inventors
InventorsTraian Voicu, Florin Hristu, Ralph Rackham
Life of this patent
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Abstract
An oil-less compressor, having polymeric seals and a crank mechanism which is vulnerable to dust arising from such seals, is provided with a dust-exclusion barrier that protects the crank mechanism from being exposed to such dust. The first stage of the compressor preferably draws its intake from the crankcase, providing a pressure differential and gas flow that sweeps seal dust away from the crank mechanism.
Claims7
A gas compressor assembly comprising:
- a) a gas compressor having at least a first stage with at least one cylinder with a piston having dry seals;
- b) a piston rod connected to said piston and extending into a crank case cavity;
- c) a crank mechanism located in the crank case cavity to operate said piston rod;
- d) a low pressure gas supply inlet for connection to a source of gas and delivery of gas to said first stage;
- and
- e) a high-pressure gas discharge outlet on said gas compressor for delivery of compressed gas to an external reservoir;
- said compressor assembly further comprising a dust control enclosure within the crank case cavity having a sidewall through which the piston rod passes, said dust control enclosure forming a barrier between the dry seals and the crank mechanism that excludes dust from the dry seals from accessing the crank mechanism.
4 more elements
Dependencies are inferred from the claim text.