Abstract: A covering device for an internal combustion engine shortens the harness used for driving fuel injection valves (and thus minimizes resistance, noise and voltage drop) and improves access to components for fuel leakage checking. Opening portions 20A, 20B are disposed on timing chain covers 1A, 1B. A solenoid driver 360 is located on a front surface of the opening portions 20A, 20B. A harness 361 passes through the opening portions 20A, 20B and is then connected to respective fuel injection valves 400 to 450. Moving or detaching the solenoid driver 360 permits a sensor portion 710 of fuel leakage checker 700 to pass easily through the opening portions 20A, 20B and get near respective fuel injection components.

Abstract: A harness holder is disposed to extend along the inside of a cover member which covers a driving pulley and a timing belt, and a harness extending from a crank angle sensor is supported in the harness holder and prevented from contacting the belt and/or pulley. A locking claw projectingly provided at an end of the harness holder is fitted into a grommet mounted on the cover member to guide the harness 21 to the outside of the cover member. Thus, a fixing device such as a bolt for fixing the harness holder can be eliminated and moreover, a tip end of the locking claw can be visually observed from the outside of the cover member to confirm the mounted state of the harness holder.

Abstract: In an outboard engine, an electric device is attached, utilizing a cooling water passage cover for closing a recessed part constituting part of a cooling water jacket, to the cover via a boss part, thus providing a compact electric device mounting structure with no such parts projecting from a side of an engine as in a conventional box member. An engine starting apparatus of the outboard engine is provided with an ignition device and a starter motor connected to a battery, and an AC generator is connected to the battery via an electric device having voltage restricting and rectifying functions. When it is cranked by the starter motor or a starter pulley, the engine is started by the ignition device operated by the battery. As it is cranked by the starter pulley while the battery is discharging, the ignition device is actuated by a current generated by the AC generator and rectified by the electric device to thereby start the engine.

Abstract: An upper intake pipe and a lower intake pipe interconnecting a left bank and a throttle body are disposed along a left side of a V-shaped multi-cylinder engine having a vertically placed crankshaft. The lower intake pipe is disposed by utilizing a waste space which is defined between a starter motor and an oil filter, while the oil filter is disposed by utilizing a waste space which is defined between the upper and lower intake pipes. Thus, it is possible to rationally dispose the intake pipes and other auxiliaries on a side of an engine block to reduce the size of the engine for the outboard engine system.

Abstract: The work for connecting a wiring harness in assembling an engine, especially, in assembling components in an engine compartment, is simplified by connecting a wiring harness for transmitting electric signals at the same time the components are assembled. A member of a connector connected to a first harness is mounted on a jointing and attaching surface of an air suction pipe and the other member of the connector connected to a second harness is mounted on a jointing and attaching surface of a throttle body so that the connector members are joined and connected to each other at the same time when the air suction pipe and throttle body are joined and secured to each other. Thereby, the harness necessary for transmitting signals is connected at the time of assembly of the parts.

Abstract: An outboard motor having a starter motor and other electrical components which are mounted adjacent the crankcase of the engine but in spaced relationship thereto by a mounting plate for providing heat insulation.

Abstract: An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control system.

Abstract: A wiring arrangement for an outboard motor including a printed circuit board fitted within a magneto generator cover that is secured to the top of the engine of the outboard motor overlying the rotor. The printed circuit board has projecting portions that extend radially outward from a generally disk-shaped body for coupled connection with branch wires, one of which acts as an output line extending from a remote control unit within an associated watercraft. The other branch wires extend downwardly to supply power to various electrical components of the outboard motor.

Abstract: An engine (10) includes a starter (28) mounted to the top portion (11a) of a crankcase (11). Further, engine (10) utilizes a flywheel (23) which has its teeth (23c) as an integral one-piece unit.

Abstract: Ignition system wiring harnesses are used to carry discrete electrical signals to the fuel igniter devices of spark ignited engines. Externally mounted wiring harnesses are subjected to damage which can cause the engine to run inefficiently. The subject ignition system wiring harness extends through internal passageways in an engine block and a plurality of cylinder heads mounted thereon. The wiring harness is retained at fixed locations by a plurality of spring clip retainers, each of which has a normally flat elongate spring clip deflected around the wiring harness and slidably extending through a pair of slots in a bracket. The spring clip exerts a nearly constant force on the wiring harness as it tries to straighten to its normally flat condition regardless of the cross sectional size of the wiring harness. Thus, one size of spring clip retainer can be used for various sizes of wiring harness.

Abstract: An auxiliary power generation device is provided for use in outboard motors having a typically horizontal flywheel with a recoil starter mounted thereabove. The device includes an alternator adapted for installation between the flywheel and the recoil starter. The alternator has a rotor shaft projecting from both ends of the alternator, and is intended for mounting coaxially with the flywheel and the recoil starter. Rollers project upwardly from the upper surface of the flywheel for engaging rollers suspended from the lower end of the rotor shaft of the alternator. Rotation of the flywheel thus produces rotation of the alternator rotor shaft, and vice verse. The recoil starter is connected to the upper end of the rotor shaft.

Abstract: An internal combustion engine includes a cylinder block, and a plurality of main bearing caps secured to the cylinder block at a predetermined portion. A flange integral with the cylinder block has first and second end walls extending from the cylinder block and spaced from each other, and a peripheral wall which interconnects the first and second end walls. The first, second and peripheral walls cooperate with the predetermined portion of the cylinder block to define a chamber. The peripheral wall is formed with an opening communicating with the chamber. The opening and the chamber serve as an access to the predetermined portion. The opening is closed by a plug.

Abstract: An alternator for a vehicle includes a stator mounted on the inner periphery of first and second bowl-like brackets separated by a plane perpendicularly crossing an output shaft, and a core integrally fixed to the shaft and surrounded by the first and second brackets, wherein the shaft is supported at the substantially central portions of the first and second brackets. The improvement comprises upper and lower flanges formed at the outer periphery of the first bracket in such a manner as to extend both parallel to the shaft, and perpendicular, in a direction tangent to the outer periphery of the first bracket, and elongated mounting bolts for fixing the alternator to the vehicle engine at the upper and lower flanges through mounting holes formed through the upper and lower flanges. This tends to isolate the rotor from engine vibration.