Abstract: An electric motor system includes a battery, an inverter, an electric motor, a zero-phase switching arm and a control unit. The inverter converts DC power output from the battery into three-phase AC power and outputs the three-phase AC power to the electric motor. A rotor of the electric motor rotates by the three-phase AC power output from the inverter. A neural point of the electric motor is connected to the zero-phase switching arm. A zero-phase current flowing through respective windings of the electric motor is adjusted by switching of the zero-phase switching arm. By this means, in the electric motor system, torque is generated at the rotor also using the zero-phase current as well as a three-phase AC current flowing through the respective windings.

Abstract: A fire extinguishing agent comprising a metallocene and a dispersion medium, the metallocene being dispersed in the dispersion medium.

Abstract: A fire extinguishing agent comprising a metallocene and a dispersion medium, the metallocene being dispersed in the dispersion medium.

Abstract: A dual pressure sensor using a reduced number of parts to simplify its structure and having increased ease of assembly and improved air tightness. The dual pressure sensor has an airtight container, two pressure sensor units received in the airtight container so as to be in intimate contact with each other and a substrate. The pressure sensor units has two bases, two pressure sensing diaphragm chips, and an output correction circuit. The pressure sensing diaphragm chips are secured to the bases, respectively. The bases are constructed respectively from base bodies having communication paths formed inside them and also respectively from pressure introduction sections integral with and projecting from the base bodies. The pressure introduction sections respectively project outward from insertion holes formed in the airtight container.

Abstract: A dual pressure sensor using a reduced number of parts to simplify its structure and having increased ease of assembly and improved air tightness. The dual pressure sensor has an airtight container, two pressure sensor units received in the airtight container so as to be in intimate contact with each other and a substrate. The pressure sensor units has two bases, two pressure sensing diaphragm chips, and an output correction circuit. The pressure sensing diaphragm chips are secured to the bases, respectively. The bases are constructed respectively from base bodies having communication paths formed inside them and also respectively from pressure introduction sections integral with and projecting from the base bodies. The pressure introduction sections respectively project outward from insertion holes formed in the airtight container.

Abstract: A flow control valve has upstream fluid pressure outlets provided between inner and outer circumferential surfaces of an upstream retainer, which is attached to an upstream inner surface of a valve body. A second conduit is provided between inner and outer surfaces of the valve body on the upstream side of the valve body. First conduits are formed between the valve body and the upstream retainer. Downstream side fluid pressure outlets are provided between inner and outer surfaces of a downstream retainer, which is mounted to the inner surface of the valve body. A fourth conduit is provided between the inner and outer surfaces of the valve body on the downstream side of the valve body. Third conduits are formed between the valve body and the downstream retainer. A differential pressure sensor is attached to the outer surface of the valve body and to the second and fourth conduits.

Abstract: A flow control valve has upstream fluid pressure outlets provided between inner and outer circumferential surfaces of an upstream retainer, which is attached to an upstream inner surface of a valve body. A second conduit is provided between inner and outer surfaces of the valve body on the upstream side of the valve body. First conduits are formed between the valve body and the upstream retainer. Downstream side fluid pressure outlets are provided between inner and outer surfaces of a downstream retainer, which is mounted to the inner surface of the valve body. A fourth conduit is provided between the inner and outer surfaces of the valve body on the downstream side of the valve body. Third conduits are formed between the valve body and the downstream retainer. A differential pressure sensor is attached to the outer surface of the valve body and to the second and fourth conduits.

Abstract: A flow rate measurement valve calculates the flow rate of the fluid flowing in a valve body from the differential pressure of the fluid pressure in a flow route upstream from a valve element arranged in the valve body and the fluid pressure in a flow route downstream from the valve element. The downstream fluid pressure is detected without the influence of dynamic pressure by detecting the pressure of fluid stopped in a fluid stagnation part formed in part of the flow route downstream from the valve element. The downstream fluid pressure is measured through a downstream fluid pressure conduction route that passes through an inner peripheral surface of the valve body facing the fluid stagnation part and an outer peripheral surface of the valve body where a downstream fluid pressure detection means is mounted.

Abstract: A valve apparatus for preventing the reverse of a thrust force and the generation of oscillation by smoothing a fluid flowing, including: an upper plug and an upper sheet ring which are for adjusting flow of fluid to an upper current path; and a lower plug and a lower sheet ring which are provided on the same axis as the upper plug and the upper sheet ring, and are for adjusting flow of fluid to a lower current path, wherein the generation of oscillation noise can be prevented by making the upper flowing path and the lower flowing path as different shapes, by making the upper and lower plug shape different, by making the plug operation stable with the reverse of the thrust force being prevented by making the fluid amount for the upper flowing path being increased, with the upper and lower sheet ring being formed as one body.