Patents
US 9970695 B2: Oil compensation in a refrigeration circuit
- Granted
- 2018-05-15
- Filed
- 2011-07-19 application 14233197
- Type
- Utility · 23 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An oil separation device (14) for separating oil from a refrigerant-oil-mixture in a refrigeration cycle (1), the oil separation device (14) comprises a first refrigerant conduit having at least a first portion (16) with a first diameter (d1); a second refrigerant conduit arranged downstream of and connected to the first refrigerant conduit, the second refrigerant conduit having at least a second portion with a second diameter (d2) being smaller than the first diameter (d1); wherein the second portion (18) of the second refrigerant conduit having the second diameter (d2) extends into the first portion (16) of the first refrigerant conduit forming an oil separation pocket (32) between the outer diameter of the second portion (18) and the inner diameter of the first portion (16); and a suction line (20) having an inlet end (19), which opens into the oil separation pocket (32) and is configured to suck oil from the oil separation pocket (32).
Source: PVGPATDIS, file of 2026-04-10 (ipg180515.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| CARRIER CORPORATION 2,012 patents | US company or organization | Farmington, CT | 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 | Jarmen, DE | 13 | PVGPATDIS, file of 2026-04-10 | |
| Alexander Tambovtsev | Mainz, DE | 2 | 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 |
|---|---|---|---|---|---|
| 2014-04-10 | Assignment Assignment of assignor's interest | CARRIER KALTETECHNIK DEUTSCHLAND GMBH signed 2011-07-25 | CARRIER CORPORATION FARMINGTON, CT | 32644/697 | ECORSEXC, file of 2026-09-25 |
| 2014-04-10 | Assignment Assignment of assignor's interest | HELLMANN, SASCHA signed 2011-07-22 TAMBOVTSEV, ALEXANDER signed 2011-07-22 | CARRIER KALTETECHNIK DEUTSCHLAND GMBH COLOGNE | 32644/628 | 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.