3results about How to "Achieving two-way flow" patented technology

The invention relates to the technical field of power systems, and discloses a hybrid power system and a vehicle. The hybrid power system comprises an engine suitable for driving an input shaft of the engine to rotate; the driving motor is suitable for driving the driving motor input shaft to rotate; the output shaft is suitable for being in transmission connection with an engine input shaft and / or a driving motor input shaft; the engine input gear is coaxially and fixedly connected with the engine input shaft; the generator is connected with a motor driving gear; and the idle gear is meshed between the motor driving gear and the engine input gear and is used for transmitting power. According to the hybrid power system provided by the invention, through introduction of the idle gear, the diameter of the motor driving gear can be reduced, so that the radial space occupation of the motor driving gear is reduced, the integrated layout of the motor and the transmission system in a compact engine compartment is facilitated, and the space utilization rate is improved.

This invention discloses a common-ground boost module, a Y-type inverter, and a control method, belonging to the field of power electronics technology. It includes: inductors L1 and L2, capacitors C1, C2, and C3, and switching transistors S1, S2, and S3. One end of inductor L1 is connected to the positive terminal of the input voltage, and the other end is connected to the drain of switching transistor S1. The source of S1 is connected to the negative terminal of the input voltage. The drain of S1 is also connected to the source of S2. The drain of S2 is connected to one end of capacitor C1, and the other end of capacitor C1 is connected to the negative terminal of the input voltage. One end of inductor L2 is connected to the drain of S2. The other end of inductor L2, one end of capacitor C2, and the source of S3 form a Y-type connection. The other end of capacitor C2 is connected to the drain of S1, and the drain of S3 is connected to one end of capacitor C3. The other end of capacitor C3 is connected to the negative terminal of the input voltage, and capacitor C3 is connected in parallel with the output side to achieve a common ground for input and output. Compared with traditional boost circuits, this invention can achieve a higher boost ratio.

The invention discloses a two-way microfluid pump chip based on a totally-closed microbubble structure and a manufacturing method of the two-way microfluid pump chip. The microfluid pump chip comprises an annular flow channel, the annular flow channel comprises a first flow channel and a second flow channel which extend in a winding mode, convex banks on the two sides of the first flow channel are provided with first resonant cavities, and convex banks on the two sides of the second flow channel are provided with second resonant cavities. Due to the fact that the first resonance cavity and the second resonance cavity have different characteristic frequencies, fluid pumping can be achieved through selective excitation of ultrasound of different frequencies, and therefore the fluid in the first flow channel and the fluid in the second flow channel are driven to flow in different directions. The manufacturing method comprises photoetching, mold reversing and bonding processes. The flow direction of the liquid can be controlled by changing the ultrasonic frequency, and bidirectional pumping of the liquid is achieved.