Electric cam phaser with fixed sun planetary
US10107154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2015 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/3522
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cam phaser (30, 130, 230) dynamically adjusts a rotational relationship of a camshaft (32) of an internal combustion engine with respect to an engine crankshaft operably connected with a phaser sprocket (42, 142, 242). The cam phaser (30, 130, 230) can include a planetary gear assembly having a ring gear (34, 134, 234) driven by the phaser sprocket (42, 142, 242), a planetary gear carrier (36, 136, 236) connected to the camshaft (32), a sun gear (38, 138, 238), and at least one rotatable planetary gear (40, 140, 240). The cam phaser (30, 130, 230) can include a sprocket housing (44, 144, 244) connected with the phaser sprocket (42, 142, 242) and operable for connection with the ring gear (34, 134, 234), a cover plate (46, 146, 246) secured to the carrier (36, 136, 236), and a adapter (48) connected between the sun gear (38, 138, 238) and an electric motor (47) for changing an angular position of the sun gear (38, 138, 238) and adjustably varying a cam phase position of the camshaft (32) relative to the crankshaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.