Abstract: A cylinder head assembly is provided. In one example, the cylinder head assembly includes a cylinder head, a cam cap coupled to the cylinder head having a component port, and a cam cover coupled to the cylinder head. The cylinder head assembly cylinder head assembly further includes a drainage passage including an inlet opening and an outlet extending through an exterior cylinder head surface.

Abstract: A positive crankcase ventilation (PCV) system is provided herein. The PCV system includes an engine assembly, the engine assembly including an engine block, a cylinder head, a valve cover, and an intake manifold and a PCV passage providing fluidic communication between a crankcase of the engine assembly and a cylinder intake port of the engine assembly without hoses or conduits external to the engine assembly.

Abstract: Systems and methods for ventilating engine crankcase gases are described. In one example, crankcase gases flow from a first cylinder bank to a second cylinder bank via tubes placed between exhaust gas manifold runners. The systems and method may improve crankcase gas ventilation.

Abstract: A system for processing PCV gases is disclosed. In one example, the system includes an oil passage solely linking an oil separator to an engine crankcase. The system can provide an oil column that provides for continuous oil return from the oil separator to the engine crankcase even during conditions of higher levels of engine vacuum.

Abstract: A cover has an aperture through which an accessory gains access to the interior side of the cover and a cavity. The accessory may be any kind of sensor or actuator. To secure the accessory to the cover, an adapter coupled to the cover is provided. In one example, the adapter has a cylindrical connection section that is spin welded into place in the cavity. In another example, the adapter has self-tapping threads that engage with the surface surrounding the cavity. The adapter also has tabs extending outwardly from the cover, the tabs having a proximate section and an engagement section. The accessory has a retaining orifice that couples with the tabs in a snap-fit relationship to secure the accessory to the cover.

Abstract: A cover has an aperture through which an accessory gains access to the interior side of the cover and a cavity. The accessory may be any kind of sensor or actuator. To secure the accessory to the cover, an adapter coupled to the cover is provided. In one example, the adapter has a cylindrical connection section that is spin welded into place in the cavity. In another example, the adapter has self-tapping threads that engage with the surface surrounding the cavity. The adapter also has tabs extending outwardly from the cover, the tabs having a proximate section and an engagement section. The accessory has a retaining orifice that couples with the tabs in a snap-fit relationship to secure the accessory to the cover.

Abstract: A system for a cylinder head is provided. The system comprises a cam cover mounted on the cylinder head and including an oil separator and a coil on plug (COP) coupled to the oil separator via a snap-fit connection. The snap-fit connection holds the coil-on-plug in position and may provide a lower cost alternative to existing systems of retaining coil-on-plugs on a cam cover.

Abstract: A system for improving PCV flow of an engine is presented. The system can reduce engine oil consumption when an engine is exposed to lateral or centripetal force. In one example, the system includes a mechanically operated valve that acts to limit PCV flow in a conduit external to an engine.

Abstract: A system for improving PCV flow of an engine is presented. The system can reduce engine oil consumption when an engine is exposed to lateral or centripetal force. In one example, the system includes a mechanically operated valve that acts to limit PCV flow.

Abstract: A cam cover for a cylinder head of an internal combustion engine has an aperture in the cam cover adapted to permit spark plug installation into the cylinder head and two tabs protruding vertically from the cam cover adapted to retain a boss extending from an ignition coil. The ignition coil has a portion adapted to fit over the spark plug and an orifice through the boss. The cam cover also has a recess between the tabs with the recess extending into the cam cover which is adapted to accept a self-tapping screw in the event of a tab failure. The tabs have a varying cross-section along their length such that they allow the orifice to slide over the tabs squeezing the tabs together and then snapping into place when the orifice clears the ramps on the side of the tabs.

Abstract: A cam cover for a cylinder head of an internal combustion engine which has an aperture in the cam cover adapted to permit spark plug installation into the cylinder head and two tabs protruding vertically from the cam cover adapted to retain a boss extending from an ignition coil is disclosed. The ignition coil has a portion adapted to fit over the spark plug and an orifice through the boss. The cam cover also has a recess between the tabs with the recess extending into the cam cover which is adapted to accept a self-tapping screw in the event of a tab failure. The tabs have a varying cross-section along their length such that they allow the orifice to be slid over the tabs by them squeezing together and then snapping into place when the orifice clears the ramps on the side of the tabs.

Abstract: A system for processing PCV gases is disclosed. In one example, the system includes an oil passage solely linking an oil separator to an engine crankcase. The system can provide an oil column that provides for continuous oil return from the oil separator to the engine crankcase even during conditions of higher levels of engine vacuum.

Abstract: A cam cover for a cylinder head of an internal combustion engine which has an aperture in the cam cover adapted to permit spark plug installation into the cylinder head and two tabs protruding vertically from the cam cover adapted to retain a boss extending from an ignition coil is disclosed. The ignition coil has a portion adapted to fit over the spark plug and an orifice through the boss. The cam cover also has a recess between the tabs with the recess extending into the cam cover which is adapted to accept a self-tapping screw in the event of a tab failure. The tabs have a varying cross-section along their length such that they allow the orifice to be slid over the tabs by them squeezing together and then snapping into place when the orifice clears the ramps on the side of the tabs.

Abstract: A cover has an aperture through which an accessory gains access to the interior side of the cover and a cavity. The accessory may be any kind of sensor or actuator. To secure the accessory to the cover, an adapter coupled to the cover is provided. In one example, the adapter has a cylindrical connection section that is spin welded into place in the cavity. In another example, the adapter has self-tapping threads that engage with the surface surrounding the cavity. The adapter also has tabs extending outwardly from the cover, the tabs having a proximate section and an engagement section. The accessory has a retaining orifice that couples with the tabs in a snap-fit relationship to secure the accessory to the cover.