摘要:
In some aspects of the invention the invention will relate to conversion of an existing VW air cooled engine to liquid cooling, and in still further aspects it will relate to the design of a water jacket to maximize heat rejection of a combustion chamber and piston through perimeter cooling.
摘要:
A system and a method to control torque during a mode transition in an internal combustion engine with a fully variable intake valve is disclosed. The mode transition may be a change in the number of active cylinders in a variable displacement engine, a change in compression ratio in a variable compression ratio engine, a gear change in a transmission coupled to the engine, a traction control event, and a rapid change in driver demand.
摘要:
A system 10 which utilizes engine coolant to selectively heat and cool fluid or oil used by another vehicle system, such as a transmission 14. System 10 includes a first cooling path or circuit 28 having a fluid-to-fluid heat exchanger 18 which is fluidly coupled to engine 12. The system 10 further includes a second fluid flow circuit 36, which contains and communicates transmission oil or fluid to and from transmission 14. Circuit 36 includes a conventional solenoid controlled shunt valve 22 which is fluidly coupled to transmission 14 and to fluid-to-fluid heat exchanger 18. Valve 22 is effective to selectively channel transmission oil through heat exchanger 18 based on one or more parameters (e.g., ambient temperature and transmission oil temperature), thereby relatively rapidly heating the transmission oil under certain operating conditions.
摘要:
An internal combustion engine includes a piston reciprocably housed within a cylinder and hybrid intake valves, with one intake valve being driven by a camshaft and at least one intake valve being selectively powered by a power source other than the camshaft, such as a solenoid.
摘要:
An internal combustion engine includes a piston reciprocably housed within a cylinder and hybrid intake valves, with one intake valve being driven by a camshaft and at least one intake valve being selectively powered by a power source other than the camshaft, such as a solenoid.
摘要:
An internal combustion engine having a cylinder and piston located therein has a charge motion control valve for controlling kinetic energy within an air charge flowing through an intake runner and into the cylinder of the engine. The charge motion control valve includes an actuator for controlling the position of the valve and an aerodynamic, wing-shaped valve disc being rotatable from a closed position to one or more open positions. The valve disc has leading and trailing segments. The leading segment masks airflow at small opening values of the valve and the trailing segment acts to prevent flow separation when the valve is in a wide-open throttle position.