摘要:
A rotary electric machine includes a stacked brush, where low-resistance and high-resistance brush layers are disposed at the front and rear end sides in the rotational direction of a commutator, respectively. When the insulation gap between the neighboring segments of a commutator is “a” and the width of the high-resistance brush layer is “b”, “a” and “b” are determined to satisfy a 2×a+c, d>b, a
摘要:
The present invention provides an engine starting method from an idling stop condition wherein a preliminary step pushes a pinion to abut with a ring gear when a vehicle operating condition is in an idling stop condition, a starting step rotates the pinion into mesh with the ring gear by a motor upon receiving an engine start signal and thereafter an engine is started, and a restoring step is carried out after engine startup where the pinion is restored to an original position thereof. Also provided, when the engine is stopped, a pinion is meshed with a ring gear. Upon engine start-up, a pinion actuator disengages the pinion from the ring gear and a cutout portion engages an engaging piece to maintain the pinion disengaged. When the engine stops, a releasing actuator disengages the cutout portion and the engaging piece and the pinion is reset.
摘要:
A brush of a rotary electric machine includes a brush element and a pigtail. The brush element includes a high-conduction member extending in the longitudinal direction and a low-conduction member bonded to a side of the high-conduction member. The low-conduction member is a thin layer extending in the longitudinal direction from the contact surface to the middle of the length of the brush element. The wire end is embedded in the high conduction member on the side of the low-conduction member remote from the contact surface.
摘要:
In an armature in which upper coil end arms extend toward an armature shaft substantially perpendicular to the armature shaft, at least one of first and second bearings supporting the armature shaft uses a ball bearing. The inner ring of the ball bearing is fixed to the armature shaft and the outer ring of the ball bearing is fixed to a cylindrical part of a holding plate such as of a brush holding member. The armature is pressed in the axial direction by brush springs so that, even if the armature tends to move in the axial direction due to armature imbalance when it rotates at high speeds, it is prevented from such an axial movement and is kept centered by the axial pressing action of the brush springs combined with a thrust bearing action of the ball bearing.
摘要:
An electronic balance is provided, which adequately exhibits quick response and displaying stability when being used to measure a number of objects. The electronic balance includes a number-of-objects calculating section, for counting a number (Nwa) of objects from the moving average (Wa) and the unit weight (Wu) when the moving average process is being executed and counting a number (Nw) of objects from the load value (W) and the unit weight (Wu) when the moving average process stops; and a display section, for displaying the calculated numbers (Nw, Nwa) of the to-be-measured objects.
摘要:
An alloy for a lead member is used for an electric lamp having a metal/vitreous material interface. Molybdenum or tungsten serving as an electric lamp current conductor is used as a base for the lead member, wherein the molybdenum or tungsten contains titanium oxide or other oxides. Automotive bulbs use this alloy for a lead member.
摘要:
A process for preparing a vitamin D derivative including providing an ultraviolet irradiation apparatus for photochemical reactions, which has an ultraviolet radiation-emitting lamp, an optical system which receives light from the ultraviolet radiation-emitting lamp and emits ultraviolet rays having a specific wavelength, and a quartz rod which receives the ultraviolet rays having the specific wavelength from the optical system and emits the ultraviolet rays, irradiating a solution of a provitamin D derivative with the ultraviolet rays emitted from the quartz rod to cause a photochemical reaction to the provitamin D derivative solution, thereby forming a previtamin D derivative, and subjecting the previtamin D derivative to a thermal isomerization reaction to prepare the vitamin D derivative.
摘要:
An electric rotating machine is constructed by an armature core including slots, upper coil trunks and lower coil trunks housed within the slots of the armature core, lower coil arms electrically connected at one end parts of the lower coil trunks, respectively disposed generally perpendicularly to the shaft, and upper coil arms electrically connected at one end parts to the upper coil trunks, respectively disposed generally perpendicularly to the shaft, and connected at the other end parts to the other end parts of the lower coil arms respectively. An insulating film for the upper coil trunk is made of an inorganic material having a higher heat resistance than an insulating film for the lower coil trunk and the insulating film for the upper coil trunk is thicker than the insulating film for the lower coil trunk. The slot has a circumferentially widened portion for housing the upper coil trunk and its insulating film.
摘要:
An image forming apparatus includes a first electric charging unit having an electric discharge wire to uniformly electrify a surface of the electrostatic latent image bearer, a second electric charging unit having a second electric discharge wire to execute a pre-electric charge removal electric charging process by electrifying the surface of the electrostatic latent image bearer subsequent to a transfer process to transfer a toner image, and a first electric charge removing device to diselectrify the surface of the electrostatic latent image bearer by irradiating it with electric charge removing light subsequent to the pre-electric charge removal electric charging process. The first electric charge removing device is disposed within an electric discharge region of the second electric discharge wire on a downstream side of an extreme upstream edge of the electric discharge region of the second electric discharge wire in a rotational direction of the electrostatic latent image bearer.
摘要:
An electronic balance is provided, which adequately exhibits quick response and displaying stability when being used to measure a number of objects. The electronic balance includes a number-of-objects calculating section, for counting a number (Nwa) of objects from the moving average (Wa) and the unit weight (Wu) when the moving average process is being executed and counting a number (Nw) of objects from the load value (W) and the unit weight (Wu) when the moving average process stops; and a display section, for displaying the calculated numbers (Nw, Nwa) of the to-be-measured objects.