SCREW COMPRESSOR
First Claim
1. A screw compressor comprising:
- a first-stage compressor main body and a second-stage compressor main body respectively configured to compress fluid with screw rotors;
an electric motor configured to drive the first-stage compressor main body and the second-stage compressor main body; and
a gear box connected to the first-stage compressor main body, the second-stage compressor main body, and the electric motor, configured to transmit a driving force of the electric motor to the screw rotors, including a first attachment hole for attaching the first-stage compressor main body and a second attachment hole for attaching the second-stage compressor main body, provided with an annular rib surrounding both of the first attachment hole and the second attachment hole.
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Accused Products
Abstract
The screw compressor includes a first-stage compressor main body and a second-stage compressor main body for compressing fluid with screw rotors, a motor for driving the first-stage compressor main body and the second-stage compressor main body, and a gear box. The gear box is connected to the first-stage compressor main body, the second-stage compressor main body, and the motor; transmits a driving force of the motor to the screw rotors, and includes a first attachment hole for attaching the first-stage compressor main body and a second attachment hole for attaching the second-stage compressor main body; and is provided with an annular rib surrounding both of the first attachment hole and the second attachment hole. In the screw compressor, the vibration of the natural vibration mode which is most burdensome and should be reduced can be efficiently reduced.
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14 Claims
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1. A screw compressor comprising:
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a first-stage compressor main body and a second-stage compressor main body respectively configured to compress fluid with screw rotors; an electric motor configured to drive the first-stage compressor main body and the second-stage compressor main body; and a gear box connected to the first-stage compressor main body, the second-stage compressor main body, and the electric motor, configured to transmit a driving force of the electric motor to the screw rotors, including a first attachment hole for attaching the first-stage compressor main body and a second attachment hole for attaching the second-stage compressor main body, provided with an annular rib surrounding both of the first attachment hole and the second attachment hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification