Patents
US 10801757 B2: Refrigeration system
- Granted
- 2020-10-13
- Filed
- 2014-07-09 application 15324321
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A refrigeration system (1) has A) an ejector circuit (3) comprising: Aa) a high pressure compressor unit (2) comprising at least one compressor (2a, 2b, 2c, 2d); Ab) a heat rejecting heat exchanger/gas cooler (4); Ac) an ejector (6); Ad) a receiver (8) having a gas outlet (8b) which is connected to an inlet of the high pressure compressor unit (2). B) a normal cooling temperature flowpath (5) comprising in the direction of flow of the refrigerant: Ba) a normal cooling temperature expansion device (10) fluidly connected to a liquid outlet (8c) of the receiver (8); Bb) a normal cooling temperature evaporator (12); Bc) an ejector secondary inlet line (68) with an ejector inlet valve (26) fluidly connecting an outlet (12b) of the normal cooling temperature evaporator (12) to a suction inlet (6b) of the ejector (6); and Bd) a normal cooling temperature flowpath valve unit (22) configured for fluidly connecting the inlet of the high pressure compressor unit (2) selectively either to the gas outlet (8b) of the receiver (8) or to the outlet (12b) of the normal cooling temperature evaporator (12); C) a freezing temperature flowpath (7) comprising in the direction of flow of the refrigerant: Ca) a freezing temperature expansion device (14) fluidly connected to the liquid outlet (8c) of the receiver (8); Cb) a freezing temperature evaporator (16); Cc) a freezing temperature compressor unit (18) comprising at least one freezing temperature compressor (18a, 18b); and Cd) a freezing temperature flowpath valve unit (20) configured for fluidly connecting the outlet of the freezing temperature compressor unit (18) selectively either to the inlet of the high pressure compressor unit (2) or to the ejector inlet valve (26).
Source: PVGPATDIS, file of 2026-04-10 (ipg201013.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| CARRIER CORPORATION 2,012 patents | US company or organization | North Palm Beach, FL | CARRIER CORPORATION Federal lobbying client EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Sascha Hellmann | Hochheim, DE | 13 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F25B | Refrigeration machines, plants or systems; combined heating and refrigeration systems; heat pump systems | F25B1/10 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-03-11 | Assignment Assignment of assignor's interest | CARRIER KALTETECHNIK DEUTSCHLAND GMBH signed 2019-03-11 | CARRIER CORPORATION PALM BEACH GARDENS, FL | 48558/742 | ECORSEXC, file of 2026-09-25 |
| 2019-03-11 | Assignment Assignment of assignor's interest | HELLMANN, SASCHA signed 2014-07-10 | CARRIER KALTETECHNIK DEUTSCHLAND GMBH COLOGNE | 48558/721 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.