A rocker housing is configured to enclose a rocker shaft and rocker arms connected to push rods that protrude from a cylinder head of an internal combustion engine. The rocker housing comprises a sidewall configured to enclose the rocker shaft and a top wall extending laterally from an upper portion of the sidewall so as to extend over the rocker arms. The rocker housing further comprises an aperture configured to accommodate a fuel injector or a fuel supply pipe for supplying fuel to a fuel injector of the internal combustion engine. The rocker housing further comprises a fuel return channel extending within at least a part of the sidewall. The fuel return channel comprises an inlet at the interior surface of the sidewall configured to receive excess fuel from the injector; an outlet at an exterior surface of the sidewall configured to output the excess fuel, wherein the outlet is laterally offset from the inlet; and an interior passage extending between the inlet and the outlet. The interior passage is formed integrally in the sidewall of the rocker housing between the interior surface of the sidewall and the exterior surface of the sidewall. The interior passage has a minor component in a direction between the interior surface and the exterior surface of the sidewall and has a major component in a direction of lateral offset between the inlet and the outlet.

A rocker housing is configured to enclose a rocker shaft and rocker arms connected to push rods that protrude from a cylinder head of an internal combustion engine. The rocker housing comprises a sidewall configured to enclose the rocker shaft and a top wall extending laterally from an upper portion of the sidewall so as to extend over the rocker arms. The rocker housing further comprises an aperture configured to accommodate a fuel injector or a fuel supply pipe for supplying fuel to a fuel injector of the internal combustion engine. The rocker housing further comprises a fuel return channel extending within at least a part of the sidewall. The fuel return channel comprises an inlet at the interior surface of the sidewall configured to receive excess fuel from the injector; an outlet at an exterior surface of the sidewall configured to output the excess fuel, wherein the outlet is laterally offset from the inlet; and an interior passage extending between the inlet and the outlet. The interior passage is formed integrally in the sidewall of the rocker housing between the interior surface of the sidewall and the exterior surface of the sidewall. The interior passage has a minor component in a direction between the interior surface and the exterior surface of the sidewall and has a major component in a direction of lateral offset between the inlet and the outlet.

An engine device having a flywheel housing (7) in which a flywheel that is rotated integrally with a crankshaft (5) is accommodated on one side portion (303) of a cylinder block (6), in which the cylinder block (6) is integrally formed with housing bracket portions (304) each protruding in a direction away from the crankshaft (5) from each of opposite side portions (301) of the cylinder block (6) extending along a crankshaft axial direction (300), the housing bracket portions (304) protruding from end portions of the opposite side portions (301) close to the one side portion (303). A space surrounded by the one side portion (301), the housing bracket portions (304), and the flywheel housing (7) constitutes a gear case (330) for accommodating therein a gear train.

An engine device having a flywheel housing (7) in which a flywheel that is rotated integrally with a crankshaft (5) is accommodated on one side portion (303) of a cylinder block (6), in which the cylinder block (6) is integrally formed with housing bracket portions (304) each protruding in a direction away from the crankshaft (5) from each of opposite side portions (301) of the cylinder block (6) extending along a crankshaft axial direction (300), the housing bracket portions (304) protruding from end portions of the opposite side portions (301) close to the one side portion (303). A space surrounded by the one side portion (301), the housing bracket portions (304), and the flywheel housing (7) constitutes a gear case (330) for accommodating therein a gear train.

An apparatus includes an exhaust gas purification device configured to be coupled to a cylinder head of an engine via a bracket, the exhaust gas purification device defined by a housing including a body portion, a first end portion, and a second end portion, the body portion interposed between the first end portion and the second end portion, the first end portion configured to be coupled to the bracket.

An apparatus includes an exhaust gas purification device configured to be coupled to a cylinder head of an engine via a bracket, the exhaust gas purification device defined by a housing including a body portion, a first end portion, and a second end portion, the body portion interposed between the first end portion and the second end portion, the first end portion configured to be coupled to the bracket.

A cylinder head cover structure for an engine includes a cylinder head cover. The cylinder head cover includes a metal cover member forming one end of the cylinder head cover in an engine length direction and a portion adjacent to the one end, and a resin cover member forming a portion of the cylinder head cover other than the metal cover member. The metal cover member is provided with a cam angle sensor attachment to which a cam angle sensor is attached, the cam angle sensor detecting a rotational position of a camshaft of the engine.

A harness has a laterally extending portion disposed along a block rear surface of an engine and extending in a width direction of a vehicle within a predetermined height range in which a drive shaft is included. The engine has a projection disposed in at least one of a position above the laterally extending portion or a position below the laterally extending portion within the predetermined height range in a portion, of the engine, toward the rear of the vehicle, the projection projecting, toward the rear of the vehicle, further than the laterally extending portion.

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion.

An engine apparatus includes an engine, an exhaust gas purification device, an outlet side bracket, and an inlet side bracket. The exhaust gas purification device is mounted above a cylinder head to extend along an axis of an output shaft of the engine. The inlet side bracket is configured to couple an exhaust gas inlet side of the exhaust gas purification device to the cylinder head. The inlet side bracket includes a first bracket, a second bracket, and a third bracket. The first bracket is configured to be secured to a surface of the cylinder head intersecting the axis of the output shaft and includes a wide width. The second bracket includes a proximal end portion and a distal end portion. The third bracket is configured to be coupled to an end surface of the exhaust gas purification device and the distal end portion of the second bracket.