Abstract: Methods and systems are provided for a 2-port integrated exhaust manifold for an inline-3, inline-6, V-6, and/or V-12 engine. In one example, a system may include an exhaust manifold integrated within a cylinder head of an engine block. The integrated exhaust manifold may include a first set of two runners from a first outer cylinder coupled to a first manifold exhaust port, a second set of two runners of a second outer cylinder coupled to a second manifold exhaust port, and one runner of an inner cylinder coupled to the first manifold exhaust port and another runner of the inner cylinder coupled to the second manifold exhaust port.

Abstract: Methods and systems are provided for a 2-port integrated exhaust manifold for an inline-3, inline-6, V-6, and/or V-12 engine. In one example, a system may include an exhaust manifold integrated within a cylinder head of an engine block. The integrated exhaust manifold may include a first set of two runners from a first outer cylinder coupled to a first manifold exhaust port, a second set of two runners of a second outer cylinder coupled to a second manifold exhaust port, and one runner of an inner cylinder coupled to the first manifold exhaust port and another runner of the inner cylinder coupled to the second manifold exhaust port.

Abstract: An engine is provided. The engine includes a piston operable to reciprocate in a cylinder, a crankshaft rotatably coupled to the piston, and a supercharger rotatably coupled to the crankshaft. The supercharger has an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance.

Abstract: An engine is provided. The engine includes a piston operable to reciprocate in a cylinder, a crankshaft rotatably coupled to the piston, and a supercharger rotatably coupled to the crankshaft. The supercharger has an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance.

Abstract: An intake manifold system for an internal combustion engine includes inlet runners attached to a mounting flange. The inlet runners may be one piece with the mounting flange. A charge air control is mounted within the mounting flange, with the charge air control including a control shaft passage formed in the mounting flange, and a control shaft extending the length of the control shaft passage. The control shaft is journaled within the control shaft passage and carries a number of charge air control elements mounted for rotation with the control shaft.

Abstract: Systems and methods for selectively activating and deactivating gas exchange valves in a variable displacement internal combustion engine include a rocker arm having a positioning device that opposes movement of a lash adjustment device while deactivated to position a coupling hole of the rocker arm within a desired coupling range to facilitate coupling of the rocker arm during subsequent activation of an associated engine cylinder.

Abstract: An intake manifold system for an internal combustion engine includes inlet runners attached to a mounting flange. The inlet runners may be one piece with the mounting flange. A charge air control is mounted within the mounting flange, with the charge air control including a control shaft passage formed in the mounting flange, and a control shaft extending the length of the control shaft passage. The control shaft is journaled within the control shaft passage and carries a number of charge air control elements mounted for rotation with the control shaft.

Abstract: Systems and methods for selectively activating and deactivating gas exchange valves in a variable displacement internal combustion engine include a rocker arm having a positioning device that opposes movement of a lash adjustment device while deactivated to position a coupling hole of the rocker arm within a desired coupling range to facilitate coupling of the rocker arm during subsequent activation of an associated engine cylinder.

Abstract: A thermostat cartridge assembly 14 for a cooling system 10 of an automotive vehicle 12 including a housing 50. The housing 50 includes a first opening 62, a second opening 68, and a direct-flow opening 72. A thermostat mechanism 80 located at least partially within the housing 50 adjusts the amount of coolant flowing between the first opening 62, the second opening 68, and the direct-flow opening 72. An attachment mechanism 52 attaches the thermostat cartridge assembly 14 to the cooling system 10. A releasing mechanism 54 engages and disengages the thermostat cartridge assembly 14 to and from the cooling system 10.

Abstract: An air/fuel mixture induction system for an internal combustion engine having a pair of intake valves, an intake air/fuel mixture flow passage communicating with each valve, a primary mask surrounding a portion of the perimeter of one of the intake valves, the air/fuel mixture being directed from the intake valve over the remaining peripheral portion thereof, thereby establishing a swirl motion in the combustion chamber, a secondary bridge mask partially surrounding the other of the pair of intake valves, the secondary bridge mask having an air/fuel mixture flow controlling surface that directs the swirl motion of the air/fuel mixture in the direction of the axis of the cylinder whereby swirl motion progresses in the direction of the axis of the cylinder throughout the combustion chamber.

Abstract: A cold start fuel preheat system for an internal combustion engine includes a housing and a fuel rail extending through the housing to deliver fuel to the internal combustion engine. The cold start fuel preheat system also includes a phase transform material disposed in the housing and about the fuel rail. The cold start fuel preheat system further includes a mechanism for heating the phase transform material such that the phase transform material stores the heat and transfers the stored heat to the fuel during cold start of the internal combustion engine.

Abstract: An internal combustion engine with charge stratification and directed air flow is provided. A charge motion control valve is positioned in the upper intake manifold and bifurcated intake ports are utilized in the cylinder head which direct the air flow into one intake port when desired. This provides improved engine performance, emissions, and fuel economy with easier packaging and consequently reduced cost.

Abstract: A reciprocating internal combustion engine uses intake valve seats which are offset from the intake port center lines such that charge motion of the inlet charge will be increased without the need for a charge motion control valve, and without causing a loss of volumetric efficiency of the engine.