	US 12,442,318 B2
	Cam phase regulator assembly
Huifang Sheng, Suzhou (CN); and Ting Quan, Shanghai (CN)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 18/844,049
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Mar. 7, 2022, PCT No. PCT/CN2022/079588 § 371(c)(1), (2) Date Sep. 5, 2024, PCT Pub. No. WO2023/168566, PCT Pub. Date Sep. 14, 2023.
Prior Publication US 2025/0215815 A1, Jul. 3, 2025
Int. Cl. F01L 1/344 (2006.01)

CPC F01L 1/3442 (2013.01) [F01L 2001/34426 (2013.01)]

20 Claims

1. A cam phase regulator assembly, comprising:

a stator,

a rotor rotatably mounted on a radial inner side of the stator, and

an engine oil control valve comprising:

a valve core mounted on a radial inner side of the rotor so as to be movable in an axial direction, and

an elastic piece, and

a retaining plate mounted at an axial end of the rotor, the retaining plate having hydraulic flow channels leading to the rotor, and

the elastic piece is abutted between the retaining plate and the valve core along the axial direction.

11. A cam phase regulator assembly, comprising:

a stator,

a rotor rotatably mounted on a radial inner side of the stator, and

an engine oil control valve comprising:

a valve core mounted on a radial inner side of the rotor so as to be movable in an axial direction, and

an elastic piece, and

a retaining plate mounted at an axial end of the rotor, the retaining plate having hydraulic flow channels extending therethrough, the hydraulic flow channels configured to fluidly connect a camshaft to the engine oil control valve, and

the elastic piece is abutted between the retaining plate and the valve core along the axial direction.

17. A cam phase regulator assembly, comprising:

a stator,

a rotor rotatably mounted on a radial inner side of the stator so that hydraulic cavities are formed between the rotor and the stator,

an engine oil control valve mounted inside of the rotor and fluidly connected to the hydraulic cavities, and

a retaining plate mounted at an axial end of the rotor, the retaining plate: i) having hydraulic flow channels configured to fluidly connect a camshaft to the engine oil control valve, and ii) configured to close an end of the engine oil control valve, and

an end cover fixed to a first end of the stator,

a sprocket wheel fixed to a second end of the stator, the sprocket wheel and the end cover configured to close the hydraulic cavities formed between the rotor and the stator, and the retaining plate is disposed within the sprocket wheel.