Abstract:
An engine induction system having a check valve upstream of the intake port for precluding reverse flow. A plenum device is communicated with the induction system downstream of the check valve for reducing inertial effects and improving charging efficiency. The plenum device may be the crankcase chamber of the engine. In that case crankcase ventilation may also be controlled and improved. Crankcase supercharging may also be generated. These features may be combined with variable valve timing to further improve engine performance.
Abstract:
A measurement device measures engine oil consumption of an engine lubricated by engine oil. The measurement device includes a sensing pipe housing in which a sulfur dioxide sensing pipe arranged to sense the sulfur dioxide is disposed, an exhaust gas introduction passage connecting the engine and a first end of the sulfur dioxide sensing pipe, and arranged to introduce the exhaust gas from the engine to the sulfur dioxide sensing pipe, and a flow amount measurement device arranged to measure the flow amount of the exhaust gas flowing in the sulfur dioxide sensing pipe. The engine oil measurement device is small in size and able to measure engine oil consumption easily.
Abstract:
A measurement device measures engine oil consumption of an engine lubricated by engine oil. The measurement device includes a sensing pipe housing in which a sulfur dioxide sensing pipe arranged to sense the sulfur dioxide is disposed, an exhaust gas introduction passage connecting the engine and a first end of the sulfur dioxide sensing pipe, and arranged to introduce the exhaust gas from the engine to the sulfur dioxide sensing pipe, and a flow amount measurement device arranged to measure the flow amount of the exhaust gas flowing in the sulfur dioxide sensing pipe. The engine oil measurement device is small in size and able to measure engine oil consumption easily.
Abstract:
A watercraft is propelled by an outboard motor having a water propulsion device powered by a multi-cylinder engine of a crankcase compression type, the engine positioned within a cowling of the motor. The engine has a very compact V type arrangement. The intake system for admitting the charge to the crankcase chambers and the exhaust manifold are positioned around the outside of the engine opposite its valley. A compressor delivery to the cylinder head intake ports is positioned within the valley. The engine includes at least one crankshaft which drives a drive shaft of the water propulsion device of the motor.
Abstract:
A crankcase compression four-cycle internal combustion engine having a valve actuating mechanism that is lubricated by first four-cycle type lubricating system. A second two-cycle lubricating system is provided for lubricating the crankcase and components associated therewith. The second lubricating system also delivers lubricant to the piston and piston pin through a groove passage way formed in part in the connecting rod for their lubrication.
Abstract:
An accumulator type fuel injection nozzle having a relief valve for the control chamber that is controlled by an electromagnet constructed in such a way so as to reduce flux losses to the outer housing of the injection nozzle. In addition, the inlet and return ports of the nozzle are formed in the outer end of the nozzle and extend axially so that the mounting position of the nozzle will not be critical to the fuel connections to the pump and return lines.
Abstract:
An accumulator type fuel injection nozzle having a relief valve for the control chamber that is controlled by an electromagnet constructed in such a way so as to reduce flux losses to the outer housing of the injection nozzle. In addition, the inlet and return ports of the nozzle are formed in the outer end of the nozzle and extend axially so that the mounting position of the nozzle will not be critical to the fuel connections to the pump and return lines.
Abstract:
In an electric vehicle driven by a drive motor with electric power generated by an engine-driven generator and with electric power from a battery, the electric vehicle includes a residual battery power detecting module for detecting a residual power capacity of the battery, and a motor control module. When the residual power capacity decreases below an established (e.g., preset) lower limit, the motor control module lowers a voltage of an accelerator output signal, which is output in response to a rotational angle of an accelerator, to a value less than a voltage given under a condition where the residual power capacity is greater than or equal to an established (e.g., preset) lower limit. In this manner, the larger rotational movement of the accelerator required to control a rotational speed of the drive motor provides a rider with a sensory indication of the operating state of the vehicle (e.g., the residual power capacity of the battery).
Abstract:
In constructing a suction device for a crank chamber supercharged engine 1 wherein intake air pressurized by a supercharge mechanism is supplied to a combustion chamber, it is arranged that the supercharge mechanism and the combustion chamber are communicatively interconnected by suction passage 38, 46, with an intake valve 7 disposed open/close operably at a downstream end of the suction passage 46, the intake valve 7 being adapted to close between 70 and 100 degrees after a bottom dead center.
Abstract:
A control system and method for a multi-combustion chamber internal combustion engine. Balance running between the combustion chambers is achieved by varying the engine operating parameters or the parameters of a load driven by the engine. In addition, knocking can be detected and corrected by also sensing the rate of acceleration of the engine output shaft at certain crank angles.