Abstract: A power supply device includes a combination of one power supply module of a plurality of power supply modules having different power supply performances and one controller of a plurality of controllers having different functions, which are selectively combined. Each of the plurality of power supply modules includes a power supply module side connection portion common to the plurality of power supply modules, and each of the plurality of controllers includes a controller side connection portion common to the plurality of controllers and connectable to the power supply module side connection portion, to allow the one power supply module and the one controller are selectively combined.

Abstract: A power supply device includes a combination of one power supply module of a plurality of power supply modules having different power supply performances and one controller of a plurality of controllers having different functions, which are selectively combined. Each of the plurality of power supply modules includes a power supply module side connection portion common to the plurality of power supply modules, and each of the plurality of controllers includes a controller side connection portion common to the plurality of controllers and connectable to the power supply module side connection portion, to allow the one power supply module and the one controller are selectively combined.

Abstract: According to an aspect of the present disclosure a welding torch is provided. The welding torch includes a sensor unit, a welding information obtaining unit, and a communication unit. The sensor unit detects travel direction information of the welding torch and posture information of the welding torch. The welding information obtaining unit obtains welding information appropriate for the travel direction information and the posture information detected by the sensor unit. The communication unit transmits the welding information obtained by the welding information obtaining unit to a welding power supply that supplies electric power to the welding torch.

Abstract: A power supply system includes multiple power supply devices connected in common to a load. A first power supply device calculates control information for controlling voltage or current to be output to the load and controls the output to the load based on the calculated control information while transmitting the control information to a second power supply device. The second power supply device receives the control information transmitted from the first power supply device and control the output to the load based on the received control information while detecting current to be output from its own device to the load and transmitting current information to the first power supply device. The first power supply device receives the current information transmitted from the second power supply device and calculate control information based on the received current information and the current and voltage detected by its own device.

Abstract: One aspect of the present disclosure provides a welding torch that performs arc welding when electric power is supplied from a welding power supply device. The welding torch includes a sensor unit that detects inclination information regarding the welding torch, a welding information acquiring unit that acquires welding information suitable for the inclination information detected by the sensor unit, and a communication unit that sends the welding information acquired by the welding information acquiring unit to the welding power supply device.

Abstract: A power supply system includes multiple power supply devices connected in common to a load. A first power supply device calculates control information for controlling voltage or current to be output to the load and controls the output to the load based on the calculated control information while transmitting the control information to a second power supply device. The second power supply device receives the control information transmitted from the first power supply device and control the output to the load based on the received control information while detecting current to be output from its own device to the load and transmitting current information to the first power supply device. The first power supply device receives the current information transmitted from the second power supply device and calculate control information based on the received current information and the current and voltage detected by its own device.

Abstract: The engine load signal, the engine speed signal, and the engine warm-up signal are directed to an electric control unit. The electric control unit issues an output signal depending on the engine condition; in the stage of engine warm-up, the output signal is issued from the first EGR MAP which does not permit EGR under idling of the engine and after full warm-up, it is issued from the second EGR MAP which permits EGR even under idling. Upon receiving the output signal, the electric vacuum regulating valve acts to adjust the opening degree of the EGR valve, thereby preventing the erosion and wear of the cylinder bore and the piston ring and reducing the generation of NOx.

Abstract: An internal combustion engine has an exhaust manifold, an inlet manifold, and a carburetor which has a fuel jet. An oxygen sensor is mounted within the exhaust manifold, and produces an output signal according to the oxygen present within the exhaust gases. A computing means computes a corrective signal according to the oxygen sensor output signal. This corrective signal is fed as an input signal both to a means for supplying secondary air into the exhaust manifold, and also to a means for supplying bleed air to the jet of the carburetor. In a particular embodiment, a secondary air signal cutoff device selectively intercepts supply of the corrective signal to the secondary air supply means, and an air bleed signal cutoff device selectively intercepts the supply of the corrective signal to the air bleed supply means. These cutoff devices may be controlled according to vehicle road speed, engine temperature, engine rotational speed, inlet manifold vacuum, and the temperature of a catalytic converter.

Abstract: A carburetor having a slow fuel passage extending to idle and slow ports, and a slow port plug inserted into said slow fuel passage and having a tip end which faces said slow port, oblique and axial bores formed therethrough, and an idle adjustment screw extending through said oblique bore.

Abstract: This discloses an ignition-timing adjusting system for internal combustion engines, which realizes an advance of the ignition-timing relating to the temperature of an engine. This system comprises vacuum advance means responsive to a vacuum produced by the vacuum in the intake tube of the engine for advancing the ignition timing of the engine, and means for controlling the level of said vacuum produced by said intake-tube vacuum with relation to the temperature of the engine. When the engine is cold, the ignition-timing is advanced under control of said vacuum-level controlling means to the proper position for operation of the cold engine.