Abstract: An electric motor disclosed herein may comprise a rotor core fixed to a shaft, a stator, and first and second refrigerant passages. The stator may include coil ends at both ends. The first refrigerant passage may be provided in the shaft and arranged outside the rotor core in an axial direction of the shaft. The second refrigerant passage may extend inside the rotor core. A first outlet of the first refrigerant passage may be provided on the shaft, and an ejecting direction of refrigerant at the first outlet may be directed towards one of the coil ends. The rotor core is cooled by the refrigerant flowing in the second refrigerant passage. The coil ends are cooled by the refrigerant flowing in the first refrigerant passage, that is, the refrigerant that has not cooled the rotor.

Abstract: An electric motor disclosed herein may include a stator, a supply hole, a first flow passage, and second flow passages. The first flow passage and the second flow passages may be provided in the stator. The first flow passage may extend along a circumferential direction of the stator. The second flow passages may extend along an axis of the stator and cross the first flow passage. A plurality of guides may be provided in the first flow passage to disturb a flow of refrigerant. The refrigerant is supplied from the supply hole to the first flow passage and disturbed by the guides. A part of the refrigerant of which flow is disturbed flows into the second flow passages. The refrigerant is distributed, thus, the refrigerant flows evenly into the second flow passages. The entire stator is thus effectively cooled.

Abstract: A drive unit for a vehicle may include a motor, a casing accommodating the motor, an electric pump unit attached to a lower part of the casing and configured to circulate heat medium within the casing and a filter unit attached to the lower part of the casing and configured to filter the heat medium. At least a part of the electric pump unit and at least a part of the filter unit each protrude outside the casing. Outside the casing, the filter unit is adjacent to the electric pump unit from a front in the vehicle.

Abstract: Carbon dioxide gas in a high-pressure gas to be treated is stably separated using a separation membrane. Upon separating carbon dioxide gas in a high-pressure gas to be treated using a separation membrane module including a separation membrane, a preliminary boosted gas is supplied to the separation membrane module before the supply of natural gas is started to boost a pressure on a primary side of the separation membrane to a preliminary pressure between a stand-by pressure and an operating pressure. Thus, when the supply of a high-pressure gas to be treated is started to increase the pressure of the separation membrane module to an operating pressure, an abrupt decrease in temperature of the gas to be treated can be suppressed.

Abstract: To regenerate, by a simple method, an inorganic separation membrane separating non-hydrocarbon gas contained in treatment target gas. Provided in separating the non-hydrocarbon gas contained in the treatment target gas is a regeneration gas supply path supplying moisture-containing regeneration gas to a primary side of the inorganic separation membrane in a separation membrane module. As a result, it is possible to regenerate the inorganic separation membrane by supplying moisture-containing CO2 gas to the inorganic separation membrane and then supplying dry natural gas. Accordingly, there is no need to use dry regeneration gas and the CO2 gas supplied via, for example, a pipeline can be used as it is.

Abstract: Carbon dioxide gas in a high-pressure gas to be treated is stably separated using a separation membrane. Upon separating carbon dioxide gas in a high-pressure gas to be treated using a separation membrane module including a separation membrane, a preliminary boosted gas is supplied to the separation membrane module before the supply of natural gas is started to boost a pressure on a primary side of the separation membrane to a preliminary pressure between a stand-by pressure and an operating pressure. Thus, when the supply of a high-pressure gas to be treated is started to increase the pressure of the separation membrane module to an operating pressure, an abrupt decrease in temperature of the gas to be treated can be suppressed.

Abstract: To regenerate, by a simple method, an inorganic separation membrane separating non-hydrocarbon gas contained in treatment target gas. Provided in separating the non-hydrocarbon gas contained in the treatment target gas is a regeneration gas supply path supplying moisture-containing regeneration gas to a primary side of the inorganic separation membrane in a separation membrane module. As a result, it is possible to regenerate the inorganic separation membrane by supplying moisture-containing CO2 gas to the inorganic separation membrane and then supplying dry natural gas. Accordingly, there is no need to use dry regeneration gas and the CO2 gas supplied via, for example, a pipeline can be used as it is.

Abstract: The present invention is intended to provide a gasket which is able to be mounted on a plunger with a loosening preventing mechanism and, more specifically, a gasket including loosening preventing means provided for the plunger having a mechanism configured to prevent a joint portion between the plunger and the gasket from loosening, and a prefilled syringe preparation utilizing this gasket. The gasket is mountable on the plunger having a projecting portion in a groove of a screw portion for screwing the gasket thereon including a depressed portion with which the projecting portion is engageable when being screwed on the plunger provided on an inner periphery of the gasket.