Integrated hydraulic cooler and return rail in camless cylinder head
AssigneeGM Global Technology Operations LLC
InventorsCraig D. Marriott, Timothy L. Neal, Jeff L. Swain, Miguel A. Raimao
Life of this patent
Estimating the term…
Abstract
An engine assembly may include a cylinder head defining an engine coolant reservoir, a pressurized fluid supply, a valve actuation assembly, and a hydraulic fluid reservoir. The valve actuation assembly may be in fluid communication with the pressurized fluid supply and may include a valve member displaceable by a force applied by the pressurized fluid supply. The hydraulic fluid reservoir may be in fluid communication with the valve actuation assembly and in a heat exchange relation to the engine coolant reservoir.
Claims20
A camless valvetrain system comprising:
- a pressurized fluid supply;
- a valve actuation assembly supported on an engine cylinder head and in fluid communication with the pressurized fluid supply;
- and
- a hydraulic fluid reservoir in fluid communication with the valve actuation assembly and in a heat exchange relation to an engine coolant reservoir located in the engine cylinder head.
An engine assembly comprising:
- a cylinder head defining an engine coolant reservoir;
- a pressurized fluid supply;
- a valve actuation assembly in fluid communication with the pressurized fluid supply, the valve actuation assembly including a valve member displaceable by a force applied by the pressurized fluid supply;
- and
- a hydraulic fluid reservoir in fluid communication with the valve actuation assembly and in a heat exchange relation to the engine coolant reservoir.
An engine assembly comprising:
- a cylinder head defining an engine coolant reservoir and a hydraulic fluid reservoir in a heat exchange relation to the engine coolant reservoir;
- a pressurized fluid supply;
- and
- a valve actuation assembly in fluid communication with the pressurized fluid supply and the hydraulic fluid reservoir and including a valve member displaceable by a force applied by the pressurized fluid.
Dependencies are inferred from the claim text.