摘要:
An alternating current generator for a vehicle, in which durability is improved, magnetic fluxes are prevented from leaking, and noises are reduced. In the alternating current generator, a ring made of a steel material is disposed so as to abut against field core claws and on the outer peripheral side of a field winding. Resin permanent magnets which are molded onto the ring are disposed between the field core claws so as to abut against the field core claws, respectively.
摘要:
A rotary fan includes a rotatable base plate, a plurality of fan blades mounted rotatably on the base plate at a peripheral portion thereof by means of supporting studs, and a blade angle adjusting mechanism mounted in association with each of the fan blades for allowing the fan blade to rotate pivotally about the supporting stud under a centrifugal force acting on the fan blade such that the rate of increase of the air quantity produced by the fan blade decreases as a rotation number of the rotatable base plate increases within a predetermined high-speed rotation range of the rotatable base plate, while in other rotation speed range outside of the high-speed rotation range, the blade angle adjusting mechanism acts to suppress the rotation of the fan blade around the supporting stud. Noise generated by the rotary fan can significantly be reduced while ensuring a sufficient quantity of air flow.
摘要:
An image forming apparatus adopting a cleaningless process using contact-type charging means, includes developer scattering means which is located between the charging means and an exposure position in contact with the surface of an image carrier. For example, the developer scattering means is a conducting brush which scatters, catches and temporarily holds the residual toner on the image carrier. With this structure, even in an image forming apparatus adopting the cleaningless process using the contact-type charging means, the residual toner on the image carrier is scattered and caught by developer catching means before the residual toner reaches the exposure position. Thus, a lowering of the image quality which is caused if the residual toner is patterned by the charging means is prevented, thereby improving the image quality. Consequently, it is possible to provide a small-sized superior image forming apparatus with high maintainability which is capable of recycling the developer and producing an image with high image quality.
摘要:
A voltage regulating circuit is provided in a single mold package, which is attached to the case directly or by a heat conductive material such that it is sandwiched between the case of a voltage regulator and a heat sink, conductors which serve as internal wirings and form terminals are insert-molded with the case of the voltage regulator and the brush holder to be superimposed upon the case of the voltage regulator, out of the terminals formed in the conductors, specific terminals on respective sides are aligned, and the brush holder is installed in the case of the voltage regulator in such a manner that they are superimposed upon each other so that electrical connection of these elements is effected.
摘要:
The duty ratio range of a duty signal DCN transmitted from a high-voltage load controller 12 to a field current controller 103 is divided into several subranges, which are assigned to zones, such as a normal voltage control zone, high-voltage control zone, and power generation stop and failure signal zone. The duty signal of a duty ratio in each zone is transmitted to the field current controller 103 for controlling the power generation mode of a generator 2. When a failure in a high-voltage circuit 16 is detected, the duty signal of a duty ratio in the power generation stop and failure signal zone causes power generation of the generator to stop and a pilot lamp 10 to go on for warning. The pilot lamp 10 is also used to warn the operator to a power generation error of the generator 2.
摘要:
A charging device for use in an image forming apparatus is disclosed which charges an object to be charged by contacting a conductive charging member with the surface of the object and then applying a voltage across the charging member and the object,wherein at least a contact portion of the charging member comprises a conductive material having a hygroscopic degree of 0.2% or less.
摘要:
A stator of a vehicular alternating current generator comprising: a stator core having slots; and a stator coil wound in the slots of the stator core; wherein a resin having a peak or peaks of a loss tangent which is a value of a loss elastic modulus divided by a storage elastic modulus in a temperature range of from 100.degree. C. to 250.degree. C. is provided among coil strands of the stator coil and/or between the stator core and the stator coil.
摘要:
An image-forming apparatus including a cleaning means for selectively removing foreign matters other than developer remaining on the surface of a photoconductor drum therefrom after a transferring process. The cleaning means is provided with a foreign-matter removing roller which comes into contact with the surface of the photoconductor drum. Foreign matters, which are charged by a transferring device to have a polarity reversed to that of the charged electric potential of toner through an electric field that is exerted between the surfaces of the roller and the photoconductor drum, are allowed to adhere to the surface of the foreign-matter removing roller. As for the surface of the foreign-matter removing roller, the surface electric potential of the foreign-matter removing roller is biased farther toward the polarity of the charged toner than the surface electric potential of the photoconductor drum at the contact portion between the photoconductor drum and the foreign-matter removing roller. Thus, it becomes possible to provide an image forming apparatus which is capable of supplying images with good picture quality for a long time, by using a cleaning operation of this cleaning means.
摘要:
In an image forming apparatus including a charging element, a charged element, a developing element, and a cleaning element the dimensions of those elements satisfy either or both of the following relations:C+D
摘要翻译:在包括充电元件,带电元件,显影元件和清洁元件的图像形成设备中,这些元件的尺寸满足以下关系中的一个或两个:C + D
摘要:
A pump according to the present invention is provided with a communication portion that provides continuous communication between a pump section and a discharge section in a state where a discharge-side check valve suppresses a backflow, and a size of the communication portion is set so that, when the continuously expanding and contracting pump section contracts, a volume of gas mixed in liquid in the pump section is contracted.