Scroll compressors and air conditioners
By adopting a dual-bearing structure and oil groove design in the roller compressor, the problem of insufficient lubrication when the Krank shaft floats is solved, improving the reliability and compactness of the equipment.
JP2026111733AActive Publication Date: 2026-07-06HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
Patent Information
- Application Number
- JP2024227119
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-07-06
- Estimated Expiration
- 2044-12-24
Smart Images
Figure 2026111733000001_ABST
Abstract
We provide highly reliable scroll compressors and the like. [Solution] The scroll compressor comprises a sealed container, a frame, a fixed scroll, an orbiting scroll 22, a crankshaft 7, a main bearing 11 that rotatably supports the eccentric portion 7b relative to the frame, and a slewing bearing 12 that rotatably supports the slewing shaft 22c relative to the circumferential surface of the eccentric hole 71b. The structure is such that the crankshaft 7 and the orbiting scroll 22 come into contact when the crankshaft 7 floats up. Oil grooves G2 and G3 are provided on one or both of the first contact surface, which is the contact surface on the crankshaft 7 side, and the second contact surface, which is the contact surface on the orbiting scroll 22 side. The oil grooves G2 and G3 are grooves that guide oil flowing out into the eccentric hole 71b through the through hole 7c of the crankshaft 7 toward the upper end of the main bearing 11.
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Citation Information
Patent Citations
Scroll compressor
JP2003201979A