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US 10,626,785 B2Granted
Two-stage oil-injected screw air compressor
AssigneesAlmig Kompressoren GmbH, Fusheng Industrial (Shanghai) Co., Ltd
InventorsYin-Ching Lin, Viktor Weber, Sheng-Kun Chen, Yu-Feng Wu
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Abstract
A two-stage oil-injected screw air compressor includes an integrated compression casing, and the integrated compression casing further includes a first stage compression chamber, an intermediate cooling channel, and a second stage compression chamber parallel stacked in the integrated compression casing. A straightforward oil injector aims at the intermediate cooling channel to spray lubricating oil into the intermediate cooling channel.
Claims8
A two-stage oil-injected screw air compressor, comprising:
- an integrated compression casing, wherein the integrated compression casing further comprises:
- a first stage compression chamber;
- an intermediate cooling channel;
- and
- a second stage compression chamber, wherein the first stage compression chamber, the intermediate cooling channel and the second stage compression chamber extend in respective longitudinal directions that are mutually parallel in the integrated compression casing, wherein the intermediate coating channel is located between the first stage compression chamber and the second stage compression chamber;
- and
- an oil injector aiming at the intermediate cooling channel to spray lubricating oil along a downstream direction of an air flow in the intermediate cooling channel into the intermediate cooling channel and parallel with the intermediate cooling channel, wherein the first stage compression chamber further comprises first stage screw rotors disposed therein and the second stage compression chamber further comprises second stage screw rotors disposed therein, wherein a length of the intermediate cooling channel along an air flow direction of the first stage compression chamber is greater than a length of each of the second stage screw rotors in the second stage compression chamber along the air flow direction of the first stage compression chamber.
4 more elements
Dependencies are inferred from the claim text.