Rotary compressor and refrigeration cycle apparatus
US12025130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Jan 8, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
According to one embodiment, a rotary compressor includes a compression mechanism unit. When H is the length of a middle shaft part, Hp is the length of a bearing hole, Dp is the inner diameter of the bearing hole, Dc is the outer diameter of a crank part, Dm is the outer diameter of the middle journal part, C1 is the axial length of a first chamfered part provided to a middle shaft part-side end edge of the crank part, C2 is the axial length of a second chamfered part, C3 is the axial length of a third chamfered part, and C4 is the axial length of a fourth chamfered part, Dp is larger than Dc and Dm, and the relationships of [Equation 1] H≤Hp, [Equation 2] H>Hp−C1−C2−√{square root over ((Dp2−Dc2))}, and [Equation 3] H>Hp−C3−C4−√{square root over ((Dp2−Dm2))} are all satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.