Patents
US 10598416 B2: Refrigeration circuit with oil separation
- Granted
- 2020-03-24
- Filed
- 2013-11-04 application 15026122
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A refrigeration cycle (1) comprises in the direction of flow of a circulating refrigerant: a compressor unit (2); an oil separation device (4) which is configured for separating oil from an refrigerant-oil-mixture leaving the compressor unit (2); at least one gas cooler/condenser (6); and at least one evaporator (10) having an expansion device (8) connected upstream thereof. The oil separation device (4, 5) comprises: a refrigerant inlet line connected to the compressor unit (2), the refrigerant inlet line having at least a first portion (12) with a first diameter (d1); a refrigerant conduit arranged downstream of and connected to the refrigerant inlet line, the refrigerant conduit having at least a second portion (14) with a second diameter (d2), which is larger than the first diameter (d1); a refrigerant outlet line arranged downstream of and connected to the refrigerant conduit, the refrigerant outlet line having at least a third portion (16) with a third diameter (d3), which is smaller than the second diameter (d2); and an oil suction line (20) having an inlet portion (22) which opens into the second portion (14) and is configured for sucking oil from the second portion (16). The third portion (16) having the third diameter (d2) extends into the second portion (14) forming an oil separation pocket (18) between the outer diameter of the third portion (16) and the inner diameter of the second portion (14).
Source: PVGPATDIS, file of 2026-04-10 (ipg200324.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 | Rheinzabern, 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 | F25B43/02 | 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 |
|---|---|---|---|---|---|
| 2016-04-07 | Assignment Assignment of assignor's interest | CARRIER KALTETECHNIK DEUTSCHLAND GMBH signed 2014-06-23 | CARRIER CORPORATION FARMINGTON, CT | 38218/415 | ECORSEXC, file of 2026-09-25 |
| 2016-04-07 | Assignment Assignment of assignor's interest | HELLMANN, SASCHA signed 2014-06-23 | CARRIER KALTETECHNIK DEUTSCHLAND GMBH COLOGNE | 38217/587 | 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.