Reciprocating compressor
The vertical reciprocating compressor integrates a robust stationary unit with integral rib portions and a leak gas return system to address vibration issues, ensuring stability and efficiency in large compressors.
JP2026109290APending Publication Date: 2026-07-01KOBE STEEL LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KOBE STEEL LTD
- Filing Date
- 2024-12-19
- Publication Date
- 2026-07-01
AI Technical Summary
Technical Problem
Existing vertical reciprocating compressors do not adequately address vibrations of stationary bodies due to lateral forces generated by the crankshaft and crossheads, which can lead to instability and inefficiency.
Method used
The compressor design incorporates a stationary unit with a base portion, rib portions, and a cross guide unit that are integrally connected to suppress vibrations, including thickened sections to reinforce against longitudinal vibrations without excessive weight increase, and a leak gas return channel to reduce gas waste.
Benefits of technology
The design effectively suppresses vibrations in large compressors, enhances stability, reduces manufacturing effort, and minimizes gas waste, while maintaining compactness and efficiency.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026109290000001_ABST
Abstract
This suppresses vibrations in the stationary body of a reciprocating compressor. [Solution] The reciprocating compressor 10 includes a crankshaft 14, a base portion 21 in which the crankshaft 14 is housed, a bearing portion that rotatably supports the crankshaft 14, and a bearing holder portion 23 having an upper split portion and a lower split portion 23b, and holding the bearing portion between the upper split portion and the lower split portion 23b. The base portion 21 includes a first side portion 28 extending along the longitudinal direction of the crankshaft 14, a second side portion 29 extending along the longitudinal direction on the opposite side of the first side portion 28 with the crankshaft 14 in between, a first rib portion 31 provided on the inside of the first side portion 28, and a second rib portion provided on the inside of the second side portion 29. The lower split portion 23b, the first rib portion 31, and the second rib portion of the bearing holder portion 23 are made of a single continuous member.
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