Two-stage refrigerant compressor and operation method thereof
US-2024418169-A1 · Dec 19, 2024 · US
Refrigeration apparatus
US8966933B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8966933-B2 |
| Application number | US-201214365997-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 26, 2012 |
| Priority date | Dec 28, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A refrigeration apparatus includes a multistage compression mechanism, switching mechanisms, intercoolers, oil separators, and a control unit. The multistage compression mechanism has one high-stage-side compression mechanism and a plurality of low-stage-side compression mechanisms connected in series. The switching mechanisms are connected to blow-out pipes of the low-stage-side compression mechanisms. The switching mechanisms switch between cooling and heating operation cycles. The intercoolers cool refrigerant blown out from the low-stage-side compression mechanisms during the cooling cycle. The oil separators are disposed between the switching mechanisms and the intercoolers. The oil separators separate lubricating oil from refrigerant blown out from the low-stage-side compression mechanisms during the cooling cycle. The control unit controls the multi-stage compression mechanism and the switching mechanisms. Refrigerant from the low-stage-side compression mechanisms passes through the oil separators and intercoolers during the cooling cycle, not during the heating cycle.
First claim
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What is claimed is: 1. A refrigeration apparatus, comprising: a multistage compression mechanism having one high-stage-side compression mechanism and a plurality of low-stage-side compression mechanisms connected in series; switching mechanisms connected to blow-out pipes of the low-stage-side compression mechanisms, the switching mechanisms being configured to switch between a cooling operation cycle and a heating operation cycle; intercoolers configured to cool refrigerant b…
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- What does patent US8966933B2 cover?
- A refrigeration apparatus includes a multistage compression mechanism, switching mechanisms, intercoolers, oil separators, and a control unit. The multistage compression mechanism has one high-stage-side compression mechanism and a plurality of low-stage-side compression mechanisms connected in series. The switching mechanisms are connected to blow-out pipes of the low-stage-side compression me…
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification F25B1/10. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).