Abstract: A fracture due to crack growth occurring in a solder bonding portion of a wiring board of a control board in a quantum computer operating in a low-temperature environment can be prevented. There is provided a control board in which a chip electronic component having a plurality of electrodes formed thereon is connected to, by solder bonding portions, a wiring board having a wiring pattern and soldering pads formed on a front surface thereof. On the electrodes, after soldering, corner portions of the electrodes on the wiring board and entire lower surfaces thereof are covered with solder bonding portions, and corner portions of the pads on a side close to the electronic component and entire upper surfaces thereof are covered with the solder bonding portions.

Abstract: A motor includes a stator and a rotor having a rotor shaft. The motor includes a bearing having an inner ring and an outer ring that are configured to rotate relative to each other. The inner ring is supported by the rotor shaft. The motor also includes a holder that supports the outer ring. The holder is clearance-fitted to a retainer on a stator side. A rotation prevention apparatus configured to prevent the rotation of the holder is positioned between the holder and a stopper member on the stator side.

Abstract: A centrifugal pump includes a motor portion including a rotor rotatably disposed in a rotor chamber and includes a pump portion including an impeller rotatably disposed in a pump chamber. The impeller is coupled to the rotor. The centrifugal pump also includes a casing that separates the rotor chamber from the pump chamber, and a bearing that rotatably supports a rotor shaft of the rotor and to which grease is supplied is provided. Two communication holes extend through the casing and provide fluid communication between the rotor chamber and the pump chamber.

Abstract: There is provided a method by which microtags can be attached to a product at a product processing facility other than the manufacturer such as a dispensing pharmacy. Also, it is an object to attach microtags to a hard capsule in a simple manner. There is provided a band seal preparation liquid for sealing a hard capsule, the band seal preparation liquid containing microtags that enable a product to be identified.

Abstract: A motor controller includes a temperature sensor configured to detect a temperature of a motor. An intermittent operation circuit allows the motor to intermittently operate at a rotation speed up to a phase before the motor reaches a rated rotation speed when it is detected that the motor temperature is at a low temperature range. The intermittent operation circuit includes a position fixing circuit configured to allow a constant electric current to flow through stator coils and to fix the motor in a stopped state. The intermittent operation circuit further includes a forced commutation circuit that allows the motor to rotate at a rotation speed up to the start-up rotation. The position fixing circuit allows the constant electric current to have a greater value as the temperature detected by the temperature sensor is lower, and allows the position fixing circuit and the forced commutation circuit to operate alternately.

Abstract: A vapor fuel processing includes a canister for absorbing vapor fuel, a purge pipe, a purge control valve, a pump, a pressure sensor, and a determination unit. The pump may be provided on the purge pipe upstream of the purge control valve. The pressure sensor may be provided between the purge control valve and the pump. The determination unit may determine a state of a purge path by comparing a first detected value of the pressure sensor detected when the pump is driven with the purge control valve in a cutoff state with a first reference value and then comparing a second detected value of the pressure sensor detected when the pump is driven with the purge control valve in the communicated state with a second reference value.

Abstract: A centrifugal pump includes a pump body that defines a partition between a rotor chamber and a pump chamber, a motor case that forms the rotor chamber together with the pump body, a pump cover that forms the pump chamber together with the pump body, and a bearing that rotatably supports a rotor shaft of a rotor with respect to the pump body. The pump body includes a boss part that projects from a partition wall toward the rotor chamber and rotatably supports the bearing. A projection part projects from a lateral section of the boss part. The projection part has an inclined surface section inclined radially inward toward the leading end side of the boss part. The boss part has a connection hole that extends from the rotor chamber to the pump chamber. A rotor chamber side opening end portion of the connection hole opens to the inclined surface section.

Abstract: A centrifugal pump includes a motor portion including a rotor rotatably disposed in a rotor chamber and includes a pump portion including an impeller rotatably disposed in a pump chamber. The impeller is coupled to the rotor. The centrifugal pump also includes a casing that separates the rotor chamber from the pump chamber, and a bearing that rotatably supports a rotor shaft of the rotor and to which grease is supplied is provided. Two communication holes extend through the casing and provide fluid communication between the rotor chamber and the pump chamber.

Abstract: A vapor fuel processing device may comprise a canister for absorbing vapor fuel, a purge pipe, a purge control valve, a pump, a pressure sensor, and a determination unit. The purge control valve may switch between a communicated state in which the canister and the intake pipe are communicated and a cutoff state in which communication between the canister and the intake pipe is cut off. The pump may be provided on the purge pipe upstream of the purge control valve. The pressure sensor may be provided between the purge control valve and the pump. The determination unit may determine a state of a purge path by comparing a first detected value of the pressure sensor detected when the pump is driven with the purge control valve in the cutoff state with a first reference value and then comparing a second detected value of the pressure sensor detected when the pump is driven with the purge control valve in the communicated state with a second reference value.

Abstract: A motor includes a stator and a rotor having a rotor shaft. The motor includes a bearing having an inner ring and an outer ring that are configured to rotate relative to each other. The inner ring is supported by the rotor shaft. The motor also includes a holder that supports the outer ring. The holder is clearance-fitted to a retainer on a stator side. A rotation prevention apparatus configured to prevent the rotation of the holder is positioned between the holder and a stopper member on the stator side.

Abstract: A device may determine whether there is a communicated point with open air between a pump and a control valve or on an opposite side to the control valve of the pump, by at least two of pressures: between the pump and the control valve in case the control valve is in a cutoff state, the switching valve is in a communication state, and the pump sends in forward direction, on an opposite side to the control valve of to the pump in case the control valve is in a communication state, the switching valve is in the cutoff state, and the pump sends in reverse direction; and between the pump and the control valve or on the opposite side to the control valve of the pump in case the valves are in the cutoff states and the pump is stopped after one of these cases.

Abstract: An evaporated fuel processing device may be provided with a canister configured to adsorb evaporated fuel evaporated in a fuel tank; a purge passage through which purge gas sent from the canister to the engine passes; a pump configured to send the purge gas from the canister to the intake passage; a control valve configured to switch between a communication state communicating the canister and the intake passage and a cutoff state cutting off the canister from the intake passage; a branch passage including one end connected to the purge passage on a downstream side relative to the pump and other end connected on an upstream side relative to the pump; and a concentration detector provided on the branch passage.

Abstract: An evaporated fuel processing device may include: a canister that communicates with a fuel tank though a tank passage, communicates with an intake passage of an engine through a purge passage, and communicates with open air through an open air passage; a control valve that switches between a closed state of closing the purge passage and an open state of opening the same; a pump that changes a pressure in a communicating space in a case where the control valve is in the closed state, the communicating space defined by the fuel tank, the tank passage, the canister, the open air passage, and the purge passage on a side closer to the canister relative to the control valve; a pressure detector disposed in the communicating space; and a determining unit that determines the evaporated fuel processing device is not operating normally by using a pressure detection result by the pressure detector in a state where the control valve is in the closed state and the pressure in the communicating space is changed by the pump

Abstract: An evaporated fuel processing device may comprise a canister, a control valve disposed on a purge passage and switching between a closed state being a state of closing the purge passage and an open state being a state of opening the purge passage, a pump disposed between the canister and the control valve, an acquiring unit acquiring a characteristic value related to a characteristic of the pump in a situation where the control valve is in the closed state and the pump pressurizes gas in the purge passage on a control valve side relative to the pump, and an estimating unit estimating a flow rate of the gas that the pump discharges to the purge passage on the control valve side when the control valve is in the open state, by using the acquired characteristic value.

Abstract: An evaporated fuel processing device may be provided with a canister configured to adsorb evaporated fuel evaporated in a fuel tank; a purge passage through which purge gas sent from the canister to the engine passes; a pump configured to send the purge gas from the canister to the intake passage; a control valve configured to switch between a communication state communicating the canister and the intake passage and a cutoff state cutting off the canister from the intake passage; a branch passage including one end connected to the purge passage on a downstream side relative to the pump and other end connected on an upstream side relative to the pump; and a concentration detector provided on the branch passage.

Abstract: An evaporated fuel processing device including a pump sending a purge gas from a canister to an intake passage, a control valve switching between a communication state and a cutoff state where the canister and the intake passage are cut off on the purge passage, a return flow passage having one end connected to the purge passage between the pump and the control valve, and other end connected to an upstream side of the pump, wherein the purge gas flows from the one end to the other end in a case where the pump is activated in the cutoff state of the control valve, and a detecting device specifying an evaporated fuel concentration in the return flow passage during the cutoff state of the control valve in a case where the control valve is controlled based on the duty ratio and the pump is activated.

Abstract: An evaporated fuel processing device including a purge passage through which a purge gas sent from a canister to an intake passage passes, a pump sending the purge gas to the intake passage, a control valve switching between a communication state and a cutoff state, a branch passage branching from the purge passage at an upstream end and joining the purge passage at a downstream end, a pressure specifying unit comprising a small diameter portion disposed on the branch passage, and specifying a pressure difference of the purge gas passing through the small diameter portion between an upstream side and a downstream side, and an estimation unit estimating a flow rate of the purge gas sent from the pump by using an evaporated fuel concentration in the purge gas that is estimated using an air-fuel ratio and the pressure difference.

Abstract: An evaporated fuel processing device may include: a canister configured to adsorb fuel evaporated in a fuel tank; a purge passage through which a purge gas sent from the canister to the intake passage passes; a control valve provided on the purge passage and having a variable aperture; and a differential pressure sensor configured to detect a pressure difference between an upstream side and a downstream side of the control valve.

Abstract: An evaporated fuel processing device including a pump sending a purge gas from a canister to an intake passage, a control valve switching between a communication state and a cutoff state where the canister and the intake passage are cut off on the purge passage, a return flow passage having one end connected to the purge passage between the pump and the control valve, and other end connected to an upstream side of the pump, wherein the purge gas flows from the one end to the other end in a case where the pump is activated in the cutoff state of the control valve, and a detecting device specifying an evaporated fuel concentration in the return flow passage during the cutoff state of the control valve in a case where the control valve is controlled based on the duty ratio and the pump is activated.

Abstract: An evaporated fuel processing device may be provided with: a canister configured to adsorb fuel evaporated in a fuel tank; a purge passage connected between the canister and an intake passage of an engine; a pump provided on the purge passage; a concentration sensor configured to detect a concentration of purge gas; a branch passage connected to the purge passage; and a switching device configured to switch between a state in which the purge gas passes through the purge passage between both ends of the branch passage and a state in which the purge gas does not pass through the purge passage between the both ends of the branch passage. The concentration sensor is provided on the branch passage.