6 results about "Synchronism" patented technology

A motor cooling structure for efficiently cooling a driving motor in a power unit case of the electric vehicle includes a transmission case cover having an air filter mounted on a side surface of a transmission case adjacent to a fan, and a ventilation gap defined between a rear portion of the transmission case cover and the transmission case. The transmission case cover includes a cooling air inlet facing the ventilation gap. When the fan is rotated in synchronism with a crankshaft, an outside cooling air is introduced from the cooling air inlet into the transmission case cover and then passes through the air filter to enter the transmission case, thereby forcibly cooling a transmission. Thereafter, a part of the cooling air is discharged from a central air outlet to the outside of the transmission case, and the remaining cooling air is drawn to the driven portion of the transmission.

In order to provide a time of flight analyzer in which the timings of the ion generation and the ion signal recorder are synchronized, and the peak center position can be determined at high accuracy with fewer measurements, the time of flight analyzer of the present invention includes an ion source and an ion signal recorder working on an internal clock, wherein the ion signal recorder generates a trigger signal in synchronism with the internal clock in order to generate ions in the ion source. Since the timing of accelerating ions in the ion source and the timing of digital sampling and recording of the ion signal, which is detected in the ion detector, in the ion signal recorder are synchronized, the timing error occurred in conventional methods can be suppressed.

An image pickup apparatus that can accurately correct an error in the position of a taking lens due to a loss of synchronism of the stepping motor during opening and closing of the lens barrier. The position of a taking lens retractable into the body of the image pickup apparatus is detected. A reference position is provided on one of both sides of a section in which the lens barrier is driven to open and close, the one side being a side on which the lens barrier is not driven to open and close.

The invention discloses a train operation experimental device based on a distributed testing system. The train operation experimental device comprises testing units, a switch and a microprocessor, wherein the testing units are distributed in all carriages of a train respectively and used for obtaining experimental data of train operation and transmitting the experimental data to the switch connected with the testing units through communication cables; the switch receives the experimental data and transmits the experimental data to the microprocessor connected with the switch through a communication cable; the microprocessor is used for conducting experimental analysis on the received experimental data and generating an experimental result. Compared with the prior art, the train operation experimental device based on the distributed testing system has the advantages of being high in integration level, throughput and synchronism, capable of improving experimental efficiency and beneficial for field experimentation.

The invention relates to the fire extinguishing agent concentration measuring technology, in particular to a calibrating device for a fire extinguishing agent concentration measuring system. The problem that an existing fire extinguishing agent concentration measuring system is low in calibration accuracy is solved. The calibration device comprises a standard gas pressure control tank and a standard gas equally-dividing device, wherein the inlet of the standard gas pressure control tank is communicated with a standard gas generating device through a flow control valve, the standard gas equally-dividing device is provided with a containing cavity, an inlet and measuring outlets, the inlet and the measuring outlets are communicated with the containing cavity, the outlet of the standard gas pressure control tank is communicated with the inlet of the containing cavity through the outlet valve, the measuring outlets of the containing cavity are evenly distributed, and each measuring outlet is communicated with the fire extinguishing agent concentration measuring system through a measuring channel. By means of the device, the consistency and synchronism of all channel calibration sources during calibration of the special fire extinguishing agent concentration measuring system can be ensured, and therefore the final calibration accuracy of each channel is ensured, calibration efficiency is improved, and calibration expenses are saved.

The invention provides an automatic paper winding device for protecting an anticorrosive coating at one end of an oil gas steel pipe. The automatic paper winding device comprises a slope conveying carrying plate. A steel pipe wheel bracket capable of rising and falling as a whole through a lifting mechanism is arranged on the lower side of a steel pipe limiting groove at the tail end of the conveying carrying plate. The steel pipe wheel bracket supports a steel pipe so that the steel pipe can rotate at a constant speed. A lifting arm assembly is erected on an axial moving mechanism on the outer side of the axial end of the steel pipe, and a paper winding system moves towards the axial end of the steel pipe axially. The paper winding system stops at a pipe opening of the steel pipe after the pipe opening is detected through a braking mechanism. The paper winding system composed of a paper releasing mechanism, a paper sending mechanism, a paper cutting mechanism, a paper pressing mechanism and a glue coating system is erected on the lifting arm assembly. After glue is pre-coated by at least one circle, the paper winding system winds and attaches kraft paper strips guided and sent bythe paper sending mechanism and the paper releasing mechanism to the pipe opening of the steel pipe through the rotation of the steel pipe. The technical purposes of automatic paper winding, glue coating and attaching of the pipe opening of the steel pipe are realized by the automatic paper winding device instead of manpower, the technical purposes of better saving energy and reducing consumptionand especially eliminating the poor synchronism between steel pipe rotating and paper winding are realized, and the modern production requirement is met.