Abstract: Methods and systems are provided for an oil heater of a hybrid electric vehicle. The oil heater comprises a metal foam comprising a plurality of pores. The oil heater is activated during a regenerative braking event where an oil temperature is less than a predefined temperature.

Abstract: Methods and systems are provided for an oil gallery of a piston. In one example, a system for a piston comprising an internal oil gallery. The internal oil gallery comprises one or more of a funnel shaped inlet, a funnel shaped outlet, and a plurality of tongues extending along a circumference of the internal oil gallery.

Abstract: Methods and systems are provided for an oil gallery of a piston. In one example, a system for a piston comprising an internal oil gallery. The internal oil gallery comprises one or more of a funnel shaped inlet, a funnel shaped outlet, and a plurality of tongues extending along a circumference of the internal oil gallery.

Abstract: Methods and systems are provided for an oil heater of a hybrid electric vehicle. The oil heater comprises a metal foam comprising a plurality of pores. The oil heater is activated during a regenerative braking event where an oil temperature is less than a predefined temperature.

Abstract: The application relates to internal combustion engines, cylinder heads, exhaust passages, and shapes and configurations of the exhaust passages. The exhaust passage may have cross-sectional shapes formed by two limbs. The cross-sectional shape of the exhaust passage may change as the passage extends. The exhaust passage may also merge with other exhaust passage. The exhaust passage may be part of a cylinder head or an exhaust manifold.

Abstract: An internal combustion engine with coolant jackets is provided. The internal combustion engine includes a cylinder head coupled to a cylinder block to form a first cylinder, an upper head-associated coolant jacket including a coolant conduit traversing the cylinder head, a lower head-associated coolant jacket fluidly separated from the upper cylinder head coolant jacket and including a coolant conduit traversing the cylinder head vertically below the upper head-associated coolant jacket, and a block-associated coolant jacket including, a first coolant passage having an inlet in fluidic communication with a coolant pump outlet and an outlet in fluidic communication with an inlet of the lower head-associated coolant jacket, and a second coolant passage having an inlet in fluidic communication with an outlet of the lower head-associated coolant jacket and an outlet in fluidic communication with a heat exchanger.

Abstract: An engine line is described herein that includes a first engine including a front end accessory drive system and a second engine including a greater number of cylinders than the first engine and a front end accessory drive system. The engine line further includes a generator, in different manufacturing arrangements, mounting to each of the front engine accessory drive systems in the first and second engines in a common location.

Abstract: An engine line is described herein that includes a first engine including a front end accessory drive system and a second engine including a greater number of cylinders than the first engine and a front end accessory drive system. The engine line further includes a generator, in different manufacturing arrangements, mounting to each of the front engine accessory drive systems in the first and second engines in a common location.

Abstract: The application relates to internal combustion engines, cylinder heads, exhaust passages, and shapes and configurations of the exhaust passages. The exhaust passage may have cross-sectional shapes formed by two limbs. The cross-sectional shape of the exhaust passage may change as the passage extends. The exhaust passage may also merge with other exhaust passage. The exhaust passage may be part of a cylinder head or an exhaust manifold.

Abstract: Systems are provided for exhaust gas passages in integrated and conventional exhaust manifolds. In one example, a system may include an exhaust gas passage that has a cross section which features curved limb shapes. This passage may also feature other shapes of cross sections at other points along the passage.

Abstract: An internal combustion engine with coolant jackets is provided. The internal combustion engine includes a cylinder head coupled to a cylinder block to form a first cylinder, an upper head-associated coolant jacket including a coolant conduit traversing the cylinder head, a lower head-associated coolant jacket fluidly separated from the upper cylinder head coolant jacket and including a coolant conduit traversing the cylinder head vertically below the upper head-associated coolant jacket, and a block-associated coolant jacket including, a first coolant passage having an inlet in fluidic communication with a coolant pump outlet and an outlet in fluidic communication with an inlet of the lower head-associated coolant jacket, and a second coolant passage having an inlet in fluidic communication with an outlet of the lower head-associated coolant jacket and an outlet in fluidic communication with a heat exchanger.

Abstract: Systems are provided for exhaust gas passages in integrated and conventional exhaust manifolds. In one example, a system may include an exhaust gas passage that has a cross section which features curved limb shapes. This passage may also feature other shapes of cross sections at other points along the passage.

Abstract: Methods and systems are provided for separately providing liquid-cooling to a cylinder head and a cylinder block. In one example, a method includes selectively pumping coolant with a single pump to each of a first cylinder head coolant jacket and a cylinder block coolant jacket based on engine temperatures. The method further includes discharging coolant from the first cylinder head coolant jacket to a heating circuit line including a vehicle interior heater and discharging coolant from the cylinder block cooling jacket and back to the single pump.

Abstract: Methods and systems are provided for separately providing liquid-cooling to a cylinder head and a cylinder block. In one example, a method includes selectively pumping coolant with a single pump to each of a first cylinder head coolant jacket and a cylinder block coolant jacket based on engine temperatures. The method further includes discharging coolant from the first cylinder head coolant jacket to a heating circuit line including a vehicle interior heater and discharging coolant from the cylinder block cooling jacket and back to the single pump.