Methods and systems are provided for a vehicle component cover. In one example, a vehicle component cover may be adapted to conceal vehicle components within an engine compartment, and the cover may include an embedded support structure having a plurality of notched sections. The support structure may deform at the plurality of notched sections to increase an energy absorption characteristic of the vehicle component cover.

Methods and systems are provided for a vehicle component cover. In one example, a vehicle component cover may be adapted to conceal vehicle components within an engine compartment, and the cover may include an embedded support structure having a plurality of lock orifices positioned to align with a plurality of openings of a solid encasement. The plurality of lock orifices are adapted to couple in locking engagement with a plurality of extensions of an emblem of the cover.

A support structure for a crankshaft includes a crankshaft that is rotatably supported on a cylinder block of an internal combustion engine and has an end portion protruding from the cylinder block, a sprocket that is attached on the end portion protruding from the cylinder block and is connected to a cam shaft, a pulley that is attached on the end portion on an opposite side from the sprocket with respect to the cylinder block and is connected to an auxiliary apparatus, and an end bearing that rotatably supports the end portion relative to the cylinder block and is provided on the end portion between the sprocket and the pulley.

A heat insulating structure of an internal combustion engine (engine 1) includes a cylinder-head-side heat insulating cover (30) and a cylinder-block-side heat insulating cover (40). Each of the first side walls (32) of the cylinder-head-side heat insulating cover (30) is disposed outwardly of, and is spaced apart from, a corresponding one of the second side walls (43) of the cylinder-block-side heat insulating cover (40) in the width direction of the vehicle. The lower edge of each of the first side walls (32) is positioned below the upper edge of the corresponding one of the second side walls (43) to overlap with the corresponding one of the second side walls (43) when viewed from the side of the vehicle.

A spacer for coupling a water pump to a timing chain cover on an automotive engine includes a body having an upstanding sidewall with opposed front and rear faces. The sidewall bounds an interior chamber, and a ramp is formed to the sidewall. The ramp extends into the interior chamber from the rear face to the front face.

A cam shaft drive device includes a chain, a guide lever, a chain chamber, which is provided in a cylinder head, a support bolt, which pivotably supports the guide lever, the support bolt including a head portion, a male screw portion, and a shaft portion, which is inserted through the support hole of the guide lever, an insertion hole, which is through which the support bolt is inserted, and a female screw hole, which is provided in the rear wall and into which the male screw portion is screwed, wherein a length from a rear end to a front end of the shaft portion is longer than an axial distance from a front end of the support hole to a front end of the insertion hole in a state where the guide lever abuts on the rear wall.

A cover of an internal combustion engine includes a cover body to be mounted to a crankcase of the internal combustion engine. The cover body includes a through hole, a protruding part, and a plurality of first recessed grooves. The through hole is to support a shaft rotatably. The protruding part is provided above the through hole in an upward direction of the internal combustion engine and protrudes toward an inside of the cover body facing the crankcase. The protruding part includes a first upper part and a first lower part in the upward direction on an inner surface of the protruding part facing the crankcase. The plurality of first recessed grooves extend radially from the through hole so as to connect the upper part and the lower part of the protruding part.

An engine cover is disclosed that includes a contoured laminate defining a plurality of accessory holes configured to receive a plurality of accessories. The engine cover also includes a corrugated reinforcing structure overlaid on the contoured laminate and connecting with the contoured laminate with at least one smooth transitioning angle between the contoured laminate and the corrugated reinforcing structure. The corrugated reinforcing structure defines a plurality of attachment holes. The engine cover also includes a plurality of fasteners with at least one of the plurality of fasteners being arranged in at least one of the plurality of attachment holes.

This internal combustion engine includes an oil seal attached to a crankshaft of an internal combustion engine main body, and a cover member including an oil seal securing portion for securing the oil seal attached to the crankshaft, the cover member including a first main body attachment portion which is arranged in a vicinity of the oil seal securing portion and which is for attaching the cover member to the internal combustion engine main body by a first fastening member.

A quantitative one-way oil gas lubricant system and a method for a 4-stroke engine, including a preceding stage quantitative oil intake orifice that is connected to a lubricant case on a wall of a crankcase of the 4-stroke engine, and a final stage quantitative airflow orifice disposed at a cylinder cover of the 4-stroke engine, are provided. A diameter of the preceding stage quantitative oil intake orifice D.sub.1 and a diameter of the final stage quantitative airflow orifice satisfy an equation: D.sub.1/D.sub.3=0.8-1.5, wherein a one-way connected oil gas lubricant channel is disposed between the preceding stage quantitative oil intake orifice and the final stage quantitative airflow orifice. A lubricant oil sucked from the preceding quantitative oil intake orifice by the crankcase flows along the oil gas lubricant channel and lubricates the engine parts that the channel passes through in turns. Finally, a minute quantity of waste oil gas that flows out from the final stage quantitative airflow orifice is introduced into a cylinder of the 4-stroke engine and is to be burned completely. The supply quantity of the lubricant oil may be controlled, and no extra lubricant oil gas may flow out from the final stage quantitative airflow orifice, therefore, the quantitative and one-way lubricating is realized.