摘要:
A button-type alkaline battery in which an anode 3 containing an anode active material and an alkaline electrolyte is disposed in a sealed space formed by sealing a cathode housing 4 with an anode sealing member 5, with a gasket 6 being interposed between the cathode housing 4 and the anode sealing member 5. The anode active material includes mercury-free zinc or a mercury-free zinc alloy. The button-type alkaline battery includes a metal layer 7 that is disposed between and in contact with the anode sealing member 5 and the anode 3. The metal layer 7 includes a base material containing zinc, and at least one metal M selected from the group consisting of indium, bismuth, and tin, with the metal M having segregated in the base material.
摘要:
A electric motor is disclosed in which torque ripple is reduced. The electric motor includes a single motor shaft. Rotors are disposed so as to be mutually offset in phase, and the rotors are secured to the motor shaft. Stators are arranged so as to individually correspond to the rotors, and the stators are disposed so as to be matched in phase. The phases of torque ripple generated in each motor unit, which is comprised of a combination of a single rotor and a single stator, are offset.
摘要:
An electric motor including a stator with a plurality of coils wound around a ring-shaped iron core, and a rotor rotatably disposed inside the stator is provided. The rotor includes a rotor shaft and a yoke. The yoke is provided near its periphery with a plurality of plate-like permanent magnets arranged at equal pitches. Heat generated from the rotor is released through a plurality of air holes formed in the yoke between the rotor shaft and the permanent magnets.
摘要:
A working machine such as a powered lawn mower has a continuously variable transmission for transmitting the power of an engine to wheels at a variable speed reduction ratio. The continuously variable transmission comprises an axial-plunger-type hydraulic pump disposed in a case for producing a hydraulic pressure, and an axial-plunger-type hydraulic motor disposed in the case for producing a rotary motion in response to the hydraulic pressure supplied from the hydraulic pump. The hydraulic pump has a pump cylinder with a plurality of pump plungers axially movably disposed therein, and the hydraulic motor has a motor cylinder with a plurality of motor plungers axially movably disposed therein. The pump and motor cylinders are disposed closely in juxtaposed relationship in the case and having respective axes that are perpendicular to each other.
摘要:
A positive electrode for an alkaline battery of the present invention includes a spinel-type manganese oxide as a positive electrode active material, wherein the spinel-type manganese oxide has a potential of 0.26 to 0.34 V with respect to a Hg/HgO reference electrode, and the content of the spinel-type manganese oxide in the entire positive electrode active material is not less than 30 mass %. Further, an alkaline battery of the present invention includes the above-described positive electrode for an alkaline battery of the invention, a negative electrode and an electrolyte.
摘要:
In a hybrid outboard motor equipped with an internal combustion engine and electric motor as selective sources of power for driving the propeller and further provided with the first output shaft connected to the engine for transmitting its output to the propeller and the second output shaft connected to the motor for transmitting its output to the propeller, the first and second output shafts are disposed coaxially, so that the amount of space required for installing the shafts is smaller by the length of their coaxial portion relative to the prior art in which the shafts are simply connected in tandem. As a result, the size and weight of the outboard motors can be reduced, thereby enhancing its ease of operation and portability.
摘要:
A motorcycle having an engine with a built-in dynamo therein is provided with a second dynamo in addition to the first dynamo. This second dynamo is used for purposes other than that for the driving of a vehicle. This second dynamo is installed outside of the engine and driven by the engine through a belt transmission device. Provision is made to establish a driving relation between the second dynamo and the engine, or to disconnect such relation.The belt transmission device is covered with a cover having an air inlet port, a cooling fan is mounted on a rotor shaft of the second dynamo, and the belt transmission device is compulsorily cooled by air flowing from the air inlet port to the second dynamo.A socket for taking off the output of the second dynamo is provided on the vehicle body.The motorcycle includes a vehicle body having a main frame and a lower frame extending in a generally parallel relation with respect to each other. The engine is supported on the lower frame. The second dynamo is positioned in a space above this engine and under the main frame.
摘要:
A positive electrode for an alkaline battery of the present invention includes a spinel-type manganese oxide as a positive electrode active material, wherein the spinel-type manganese oxide has a potential of 0.26 to 0.34 V with respect to a Hg/HgO reference electrode, and the content of the spinel-type manganese oxide in the entire positive electrode active material is not less than 30 mass %. Further, an alkaline battery of the present invention includes the above-described positive electrode for an alkaline battery of the invention, a negative electrode and an electrolyte.
摘要:
Present invention prevents connection terminals for connecting stator windings to external conductive wires from densely concentrating on a bobbin. A multipolar generator includes a stator core 10 on which salient poles 11 of integral multiples of “3” are provided, and main windings 17 wound around the salient poles 11. Auxiliary machine windings 18 to 20 in place of the main winding 17 are wound around at least one of three salient poles 11 provided at intervals of integral multiples of “3” from the salient poles 11 of both ends of six continuous salient poles 11 around which the winding start and winding finish of the main winding 17 are wound. The auxiliary windings are arranged each other at intervals of integral multiples of “3”. When the number of the auxiliary windings is 2 or less, the salient pole 11 around which the other auxiliary winding should be wound, is empty.
摘要:
In a hybrid outboard motor equipped with an internal combustion engine and electric motor as selective sources of power for driving the propeller and further provided with the first output shaft connected to the engine for transmitting its output to the propeller and the second output shaft connected to the motor for transmitting its output to the propeller, the first and second output shafts are disposed coaxially, so that the amount of space required for installing the shafts is smaller by the length of their coaxial portion relative to the prior art in which the shafts are simply connected in tandem. As a result, the size and weight of the outboard motors can be reduced, thereby enhancing its ease of operation and portability.