Suzuki Patente

[Problem to be Solved] To provide a method for producing a layered film structure wherein a smooth anodized film or chemical conversion film is formed on a surface of an alloy member without being affected by a precipitated phase contained in the alloy member, and a piston for an internal combustion engine. [Solution] The production method of the present invention includes the steps of: forming a pure metal layer on a surface of an alloy member; and conducting an anodizing treatment or a chemical conversion treatment on the pure metal layer to obtain a layered film structure having the alloy member and a film formed on the surface thereof. The piston for an internal combustion engine of the present invention has this layered film structure, wherein an interface between the alloy member and the film is linear at a cross section of the layered film structure or a precipitated phase is present in the interface and the interface is linear at the cross-section of the layered film structure except a portion where the precipitated phase is present.

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To provide a vehicle battery pack in which a battery module and an electrical component can be arranged adjacent to each other, and high temperature air around the electrical component can be prevented from moving to the battery module side and causing the battery module to reach a high temperature. A duct 50 has a first partition portion 74 that suspends adjacent flow path forming portions 73 and extends in a predetermined direction, and a low heat conductivity layer 75 having a lower heat conductivity than that of the first partition portion 74 is provided between the first partition portion 74 and a battery unit 16. A duct support member 80 that supports the duct 50 is provided, and the duct support member 80 has a second partition portion 81 which faces the first partition portion 74 and is arranged adjacent to an air circulation surface 11A. A pair of third partition portions 76 that partitions the low heat conductivity layer 75 and flow paths 72 adjacent to the low heat conductivity layer 75 in the predetermined direction is provided.

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A storage control device of an outboard motor writing operation history information of the outboard motor to a nonvolatile memory by using an electric power generated by driving of an internal combustion engine, the storage control device includes: a stop instruction detecting means detecting a stop instruction of the driving of the internal combustion engine by a boat operator; a writing means writing the operation history information to the nonvolatile memory in accordance with the stop instruction detected by the stop instruction detecting means; a write judgment means judging whether or not the operation history information is written to the nonvolatile memory by the writing means; and a stop processing means stopping the driving of the internal combustion engine after it is judged that the operation history information is written to the nonvolatile memory by the write judgment means.

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There is provided an oil control valve unit configured to control a hydraulic pressure to intake-side and exhaust-side variable valve timing devices of an engine. An intake control valve is configured to control an intake-side valve timing. An exhaust control valve is configured to control an exhaust-side valve timing. A valve housing is configured to support the intake control valve and the exhaust control valve. The engine is formed therein with a main gallery to which oil is to be delivered from an oil pump. The valve housing is connected with an external piping extending from the main gallery and the oil is supplied from the main gallery to an oil passage in the valve housing through the external piping.

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A rocker shaft (30) is formed with an oil passage (51) and with an oil outlet (52) communicating with the oil passage (51) and extending in a radially. A rocker arm (31) includes a bearing portion supported on said rocker shaft (30), the bearing portion being formed with an oil injection hole (53) for injecting lubricating oil from the oil outlet (52) to a sliding contact portion side between the rocker arm (31) and the cam (29) . The oil injection hole (53) and the oil outlet (52) are constructed at least so as not to be overlapped with each other when the rocker arm (31) is in sliding contact with a base circle portion (55) of the cam (29) and so as to be overlapped with each other when the rocker arm (31) is in sliding contact with a nose portion of the cam (29) in a press-down state.

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An engine start control device (10) includes: a control valve (ISCV,106) which adjusts a gas flow rate of a gas channel (43) provided so as to bypass a throttle valve (42) of an engine (4); a starter motor (102) capable of driving a crankshaft (41) of the engine (4); a control unit (104) which controls an opening degree of the control valve (ISCV,106) and a current supply to the starter motor (102); and a latch circuit (105) which holds a command for current control from the control unit (104) to the starter motor (102), wherein the control unit (104) performs the control so as to cause the current supply to the starter motor (102) to start after the opening degree of the control valve (ISCV,106) reaches a target opening degree for an engine start time, and even when the control unit is reset, the latch circuit (105) continues the current supply to the starter motor (102) according to the command for current control that the latch circuit keeps holding.

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An engine case (100) houses engines in the inside of the case and is provided with a propulsion unit (15) outside the case. A case main body (101) housing the engines and assemblies of peripheral parts of the engines, and a case cover (102) covering an opening at an upper portion of the case main body are included. Mufflers are installed on an exterior of a lower surface of the case, and on the lower surface of the case, housing portions housing the mufflers and exhaust hoses are formed.

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