Abstract: An engine head gasket includes a base layer, an upper layer, and a lower layer. The base layer includes a base layer inner edge. The engine head gasket further includes an anti-preignition wrap defining a cylinder opening and wrapped around the base layer inner edge. The engine head gasket is configured with a combustion seal and selective thicknesses to direct a combustion sealing load to a cylinder block. The anti-preignition wrap shields angular corners of the base layer inner edge from a cylinder to limit preignition.

Abstract: A piston includes an annular body including a crown portion defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, and a circumferential direction. The crown portion includes a top squish surface, and a circumferential annular wall extending downwardly axially from the top squish surface as well as a skirt. A first piston ring receiving groove is spaced away from the top squish surface, an upper land and a lower land extend from the first piston ring receiving groove, and a bottom blend connects the lower land to the first piston ring receiving groove.

Abstract: A fluid injector for an exhaust treatment device is disclosed. The fluid injector may have a housing at least partially forming a fluid chamber. The housing may have a central axis, and a fluid passageway configured to supply fluid to the fluid chamber. The supply of fluid may be in a tangential direction relative to the central axis.

Abstract: An exhaust treatment device for a combustion system is disclosed. The exhaust treatment device may have a housing, and an injector disposed within the housing to deliver an injection fluid into a flow of exhaust. The exhaust treatment device may also have at least one fluid supply passage that is disposed within the housing and being in fluid communication with the injector to supply the injector with injection fluid. The exhaust treatment device may further have at least one purge passage disposed within the housing and in fluid communication with the injector to supply the injector with a purge fluid. The exhaust treatment device may additionally have a first valve element that is mounted to the housing and disposed at an entrance of the at least one purge passage The first valve element may be configured to provide a unidirectional flow of purge fluid to the at least one purge passage.

Abstract: An aftertreatment burner for an exhaust treatment device is disclosed. The aftertreatment burner may have a mounting member, and a canister connected to the mounting member to form a combustion chamber. The aftertreatment burner may also have a fuel injector disposed within the mounting member to selectively inject fuel into combustion chamber, and an air supply line configured to supply air to the combustion chamber. The aftertreatment burner may further have an igniter disposed within the mounting member to ignite the fuel/air mixture, and a thermal couple configured to detect the ignition.

Abstract: A spark plug arrangement for an exhaust treatment device is disclosed. The spark plug arrangement may have a body, and a center electrode extending from an end of the body. The spark plug arrangement may further have a mounting member with a bore configured to receive the body, and a grounded electrode extending proximal the center electrode.

Abstract: An exhaust treatment device for a combustion system is disclosed. The exhaust treatment device may have a housing, and an injector disposed within the housing to deliver an injection fluid into a flow of exhaust. The exhaust treatment device may also have at least one fluid supply passage that is disposed within the housing and being in fluid communication with the injector to supply the injector with injection fluid. The exhaust treatment device may further have at least one purge passage disposed within the housing and in fluid communication with the injector to supply the injector with a purge fluid. The exhaust treatment device may additionally have a first valve element that is mounted to the housing and disposed at an entrance of the at least one purge passage The first valve element may be configured to provide a unidirectional flow of purge fluid to the at least one purge passage.

Abstract: An aftertreatment burner for an exhaust treatment device is disclosed. The aftertreatment burner may have a mounting member, and a canister connected to the mounting member to form a combustion chamber. The aftertreatment burner may also have a fuel injector disposed within the mounting member to selectively inject fuel into combustion chamber, and an air supply line configured to supply air to the combustion chamber. The aftertreatment burner may further have an igniter disposed within the mounting member to ignite the fuel/air mixture, and a thermal couple configured to detect the ignition.

Abstract: A spark plug arrangement for an exhaust treatment device is disclosed. The spark plug arrangement may have a body, and a center electrode extending from an end of the body. The spark plug arrangement may further have a mounting member with a bore configured to receive the body, and a grounded electrode extending proximal the center electrode.

Abstract: A fluid injector for an exhaust treatment device is disclosed. The fluid injector may have a housing at least partially forming a fluid chamber. The housing may have a central axis, and a fluid passageway configured to supply fluid to the fluid chamber. The supply of fluid may be in a tangential direction relative to the central axis.