32results about How to "Improve the controllable range" patented technology

It is an object of this invention to provide a gas fuel supply system in which a controllable range in the fuel injection quantity control by an injector is enlarged. According to one preferable aspect of this invention, the gas fuel supply system comprises an injector provided in an intake pipe of an internal combustion engine, a fuel supply passage for supplying the gas fuel to the injector, and means for controlling pressure of the gas fuel supplied to the injector through the fuel supply passage by using negative pressure in the intake pipe such that the pressure of the gas fuel increases if the negative pressure in the intake pipe decreases, and the pressure of the gas fuel decreases if the negative pressure in the intake pipe increases.

A controller for an axial gap-type motor (3) comprises a rotor (11) having a permanent magnet and a first stator (12a) and a second stator (12b) opposed to each other with the rotor (11) interposed therebetween in the axial direction of revolution of the rotor (11). The controller further includes an electrification control portion which supplies a torque current (Iq) for generating a magnetic field to revolve the rotor (11) to an armature winding (13a) of the first stator (12a) and supplies a field current (+Id) for reinforcing the magnetic flux by the permanent magnet of the rotor (11) or a field current (−Id) for weakening the magnetic flux to an armature winding (13b) of the second stator (12b). Consequently, the controllable range of the motor is increased and the axial gap-type motor can be operated at higher velocity and higher torque.

The embodiment of the present invention provides a train speed control method and device. When the target train is connected to the collided train, the traction cutting method is adopted to cut off the traction of the target train in advance, and the emergency braking of the target train can be triggered before the traction is cut off. The protection speed of the curve is increased to a speed close to the emergency braking curve, thereby increasing the controllable range of ATO control speed, which can shorten the gap between the running speed of the target train and the unbreakable speed, so as to meet the maximum allowable collision speed of the coupler. .

The invention relates to a deflection correction method for a clay conveying pump of a heading machine. The method comprises the following steps of (1) determination of a pumping hole, wherein according to the deflection direction of the heading machine, a preformed hole in the direction identical to the deflection direction is selected to be formed in a heading machine shell or a hole is formed again and used as a pumping hole; (2) clay pumping for correction, wherein through the conveying pump, the clay is pumped to the soil from the determined pumping hole, and the reverse application forceduring clay pumping is used for correcting the heading machine; (3) gesture monitoring and ending standards, wherein in the process of clay pumping, the gesture of the heading machine is monitored intime, and after the gesture meets the deflection correction requirement, pumping is stopped instantly. According to the method, the conveying pump is adopted for pumping clay to the soil, pressurization filling is conducted constantly, the bearing capacity of the soil is improved, the reverse application force is provided for the heading machine shell, and the aim of gesture deflection correctionfor the heading machine is achieved. According to the method, deflection correction of the heading machine shell in the rolling, horizontal and vertical directions and the like can be achieved, and the method has the advantages that the deflection correction distance is short, the deflection correction effect is good, and the controllable range of the pumping pressure is wide.