Patents
US 10544708 B2: Split axial cam shifting system variable valve actuation functions
- Granted
- 2020-01-28
- Filed
- 2017-10-02 application 15722649
- Type
- Utility · 26 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A valve train assembly configured to selectively open and close intake and exhaust valves associated with cylinders of an internal combustion engine comprises an intake rocker arm assembly, an intake cam assembly, a first axial shifting cam assembly and a second axial shifting cam assembly. The intake rocker arm assembly can have a plurality of intake rocker arms. The intake cam assembly can be associated with each of the cylinders and can have three distinct cam profiles including a first cam profile, a second cam profile and a third cam profile. The first axial shifting cam assembly can operate independently from the second axial shifting cam assembly to provide three distinct valve lift profiles on the first grouping of cylinders and three distinct valve lift profiles on the second grouping of cylinders.
Source: PVGPATDIS, file of 2026-04-10 (ipg200128.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Eaton Corporation 1,707 patents | US company or organization | Cleveland, OH | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| James E. McCarthy, Jr. | Kalamazoo, MI | 99 | PVGPATDIS, file of 2026-04-10 | |
| Philip William Wetzel | Battle Creek, MI | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F01L | Cyclically operating valves for machines or engines | F01L1/053 | PVGPATDIS, file of 2026-04-10 |
| Y02T | Climate change mitigation technologies related to transportation | Y02T10/12 | 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 |
|---|---|---|---|---|---|
| 2018-04-19 | Assignment Assignment of assignor's interest | WETZEL, PHILIP WILLIAM signed 2018-04-04 MCCARTHY, JAMES E., JR. signed 2018-04-19 | EATON CORPORATION CLEVELAND, OH | 45589/915 | 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.