Scroll compressors and air conditioners

The scroll compressor design with a cantilevered crankshaft and double bearing structure improves performance and reliability by suppressing deflection and tilt, enabling cost-effective miniaturization and efficient operation.

JP2026111732AActive Publication Date: 2026-07-06HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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Patent Information

Application Number
JP2024227118
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

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Abstract

We provide high-performance and reliable scroll compressors and other related equipment. [Solution] The scroll compressor 100 comprises a sealed container 1, a frame 3, a fixed scroll 21, a revolving scroll 22 having a pivot shaft 22c, a crankshaft 7 cantilevered within the frame 3 and having an eccentric portion 7b with an eccentric hole 71b that fits onto the pivot shaft 22c, a frame plate 5 having a fitting portion that fits inside the frame 3 and having an insertion hole for the eccentric portion 7b, a main bearing 11 that rotatably supports the eccentric portion 7b with respect to the frame plate 5, a slewing bearing 12 that rotatably supports the pivot shaft 22c with respect to the circumferential surface of the eccentric hole 71b, and a first resin ring 61 that seals the space between the frame plate 5 and the end plate 22a.
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Citation Information

Patent Citations

  • scroll compressor

    JP2923582B2

  • Scroll Compressor

    JP7263553B2