Abstract: A high-strength steel sheet of the present invention has a specific chemical composition. Furthermore, in the steel sheet, a degree of Mn segregation in a specific region is 1.5 or less; a maximum P concentration in a specific region is 0.08 mass % or less; in a specific region, at least one specific MnS particle group is present, the number of specific MnS particle groups is 2.0 or fewer per 1 mm2, and the number of specific oxide-based inclusions is 8 or fewer per 1 mm2; of all oxide-based inclusions, oxide-based inclusions having a specific composition are present in a number ratio of 80% or greater; the microstructure includes, in terms of a volume fraction, 30 to 95% martensite, 5 to 70% ferrite phase, less than 30% (and 0% or greater) bainite, and less than 2.0% (and 0% or greater) austenite phase; and a tensile strength is 980 MPa or greater.

Abstract: An accessory component mounting structure includes a tubular pump mounting portion provided in a canister and a purge pump having a motor unit that generates heat. The purge pump is inserted into the internal space of the pump mounting portion and is mounted by snap-fitting. A gap passage extending from an opening side of the pump mounting portion to the rear side thereof is provided between the pump mounting portion and the purge pump. A first communication hole in fluid communication with the gap passage and the outside is provided in the pump mounting portion.

Abstract: An evaporated fuel treatment apparatus includes: a canister; a purge passage; a purge pump provided in the purge passage; and an atmosphere passage communicating with the canister. A leakage diagnostic device includes: two bypass passages provided between the purge passage on the upstream side of the purge pump and the atmosphere passage; a reference orifice; two three-way valves; a pressure sensor; and an ECU. When operating the purge pump under a predetermined condition, the ECU controls the two three-way valves to set a mode in which atmospheric air is pressure-fed into an air intake passage through the reference orifice and the purge pump, and a mode in which vapors in the canister are pressure-fed into the air intake passage through the reference orifice and the purge pump, and determines leakage by comparing a reference pressure and a leakage pressure that are measured when these modes are set.

Abstract: A vaporized-fuel treating apparatus includes a pump part for controlling a flow of purge gas and a heating part for controlling driving of the pump part and for generating heat. At least a part of the heating part is placed to be exposed in an atmosphere passage. The pump part is either placed in the purge passage or arranged connecting to the purge passage.

Abstract: A canister includes a plurality of activated carbon layers for adsorbing vaporized fuel and a purge pump for introducing purge air into the canister to cause purge gas containing the vaporized fuel to flow out of the canister. At least a part of the purge pump is placed in the chamber defined between the activated carbon layers.

Abstract: In an evaporated fuel treatment apparatus, a controller performs first purge concentration determination control by gradually increasing a purge flow rate in increments of a predetermined amount and detect a purge concentration based on a detection value of the pressure sensor. As the first purge concentration determination control, the controller performs a control to prohibit changing of an operating state of the purge pump or changing of an open state of the purge valve until a detected concentration determination time at which a variation range of the purge concentration detected based on a detection value of a pressure sensor becomes equal to or less than a predetermined value.

Abstract: An evaporated fuel processing apparatus includes a canister to collect vapor generated in a fuel tank, a purge passage to purge vapor into an intake passage from the canister, a purge pump provided in the purge passage, a first trifurcated valve in the purge passage between an exhaust port of the purge pump and an outflow port of the purge passage, a second trifurcated valve provided in the purge passage between an inflow port of the purge passage and an intake port of the purge pump, a first bypass passage between the purge passage upstream of the second trifurcated valve and the first trifurcated valve, and a second bypass passage between the purge passage downstream of the first trifurcated valve and the second trifurcated valve. Passages for the vapor and others are switched by switching the first trifurcated valve and the second trifurcated valve during operation of the purge pump.

Abstract: In an evaporated fuel treatment apparatus, a controller performs first purge concentration determination control by gradually increasing a purge flow rate in increments of a predetermined amount and detect a purge concentration based on a detection value of the pressure sensor. As the first purge concentration determination control, the controller performs a control to prohibit changing of an operating state of the purge pump or changing of an open state of the purge valve until a detected concentration determination time at which a variation range of the purge concentration detected based on a detection value of a pressure sensor becomes equal to or less than a predetermined value.

Abstract: An evaporated fuel processing apparatus preventing evaporated fuel from being discharged out of a canister when residual purge gas is made to return to the canister and processed is provided. In the apparatus, an ECU performs residual purge gas processing operation of returning the residual purge gas into the canister and processing during halt of purge control. This operation includes a residual purge gas pressure-feeding process of pressure-feeding the residual purge gas with the air into the canister by the purge pump in a state in which the atmospheric passage is shut off and the purge passage and the second bypass passages are opened and an air discharge process of discharging the air in the canister outside via the atmospheric passage by opening the atmospheric passage while the purge passage and the second bypass passage are shut off.

Abstract: An evaporated fuel processing device configured to supply purge gas into an intake passage through which air to be suctioned into an engine passes. The evaporated fuel processing device may include a canister in which the purge gas including evaporated fuel is generated; a purge pump configured to discharge the purge gas toward the intake passage from the canister; a measurement unit configured to measure a temperature of the purge gas discharged from the purge pump; an estimation unit configured to estimate a temperature of the purge gas to be discharged from the purge pump based on an index other than the temperature measured by the measurement unit; and a controller. The controller may be configured to compare the measured temperature measured by the measurement unit with a reference temperature that is higher by a predetermined degree than the temperature estimated by the estimation unit.

Abstract: A fuel vapor processing apparatus includes an adsorption passage has a first end connected to a fuel tank and a second end open to the atmosphere. The adsorption passage includes a first hollow chamber, a second hollow chamber, and a third hollow chamber. In addition, the adsorption passage includes a first adsorption chamber and a second adsorption chamber. The first adsorption chamber is positioned between the first hollow chamber and the second hollow chamber, and the second adsorption chamber is positioned between the second hollow chamber and the third hollow chamber. The adsorption chambers are configured to adsorb and desorb fuel vapor. A purge passage extends from the second hollow chamber toward an internal combustion engine. A bypass passage extends from the first hollow chamber to the third hollow chamber and bypasses the second hollow chamber. The bypass passage is provided with a shutoff valve that is open during a purge operation and is closed at other times.

Abstract: A stator of a brushless motor may include a core; a bobbin including a pair of side surfaces, an inner wall, and an outer wall; a conductor wire wound by being overlapped in plural layers; and a resin layer covering the bobbin and the conductor wire. A profile of the conductor wire may become larger towards an outer circumferential side of the stator. Among portions of the conductor wire arranged along a rotary axis direction of a rotor on at least one side surface included in the pair of side surfaces and located on an innermost circumferential side of the stator in the respective plural layers, a portion of the conductor wire exposed to the resin layer and separated from the inner wall and the outer wall may be tilted from an inner circumferential side of the stator toward the outer circumferential side of the stator.

Abstract: A canister includes a vapor port leading to a fuel tank, an atmospheric port leading to the atmosphere, a first purge port leading to a first purge passage, and a second purge port leading to a second purge passage. The vapor port is located farther from the second purge port than the first purge port.

Abstract: A centrifugal pump includes an impeller and a housing defining a pump chamber that houses the impeller therein. The housing includes an inlet passage in fluid communication with the pump chamber and an outside of the housing. The inlet passage includes a connection passage part having a cylindrical shape extending from the pump chamber and a main passage part having a cylindrical shape connected to the connection passage part, so as to form a bent shape. A central axis of the main passage part is parallel to a reference plane that includes a central axis of the connection passage part. A flow direction of a fluid parallel the central axis of the main passage part is partly the same as the rotational direction of the impeller in a plan view along an axis of the impeller.

Abstract: A centrifugal pump includes a housing and an impeller housed in the housing. The impeller has a main plate, a plurality of first blades, and a plurality of second blades. The first blades and the second blades extend radially along the main plate and have the same radial length. Each of the second blades has a low blade part and a high blade part extending radially from a radially outer end of the low blade part. When comparing the first blades and the second blades with each other at an equal distance from a rotational axis of the impeller, a height of the low blade part measured from the main plate is less than a height of each first blade measured from the main plate, and a height of the high blade part measured from the main plate is the same as that the height of each first blade.

Abstract: A centrifugal pump includes an impeller rotated about a rotational axis in a rotational direction by a motor and a housing defining a pump chamber therein. The impeller is housed in the pump chamber. The impeller includes a main plate having substantially circular shape and a first surface extending perpendicular to the rotational axis. The main plate is provided with a plurality of blades projecting axially from the first surface and extending radially along the first surface. Each of the blades has a radially inner blade part and a radially outer blade part extending radially outward from the radially inner blade part. Each of the outer blade parts has a front surface that extends from the main plate obliquely either frontward or rearward relative to the rotational direction.

Abstract: A fuel vapor processing apparatus includes an adsorption passage has a first end connected to a fuel tank and a second end open to the atmosphere. The adsorption passage includes a first hollow chamber, a second hollow chamber, and a third hollow chamber. In addition, the adsorption passage includes a first adsorption chamber and a second adsorption chamber. The first adsorption chamber is positioned between the first hollow chamber and the second hollow chamber, and the second adsorption chamber is positioned between the second hollow chamber and the third hollow chamber. The adsorption chambers are configured to adsorb and desorb fuel vapor. A purge passage extends from the second hollow chamber toward an internal combustion engine. A bypass passage extends from the first hollow chamber to the third hollow chamber and bypasses the second hollow chamber. The bypass passage is provided with a shutoff valve that is open during a purge operation and is closed at other times.

Abstract: An evaporated fuel treatment apparatus includes a canister for collecting vapor, a vapor passage for introducing the vapor from a fuel tank to the canister, a purge passage for introducing the vapor from the canister to an intake passage, an atmosphere passage for introducing atmospheric air into the canister, a purge pump provided in the atmosphere passage to pressure feed the vapor to the intake passage, a bypass atmosphere passage branching from the atmosphere passage downstream of the purge pump, an atmosphere check valve for opening/closing the atmosphere passage between a branch portion of the bypass passage and the purge pump, and an atmosphere opening/closing valve for opening/closing the bypass atmosphere passage. During operation of the purge pump, the atmosphere check valve is opened and the atmosphere opening/closing valve is closed. During non-operation of the purge pump, the atmosphere check valve is closed and the atmosphere opening/closing valve is opened.

Abstract: A fuel supply system for supplying a fuel from a fuel tank to an engine includes a fuel pump for delivering a fuel from the fuel tank, a fuel pipe for flowing therethrough the fuel from fuel pump, a canister including an activated carbon capable of adsorbing and desorbing vaporized fuel generated in the fuel tank, a heat exchanging mechanism for performing heat exchange between the fuel pipe and the canister on a downstream side of the fuel pump, and a return pipe for returning the fuel from the fuel pipe to the fuel tank on a downstream side of the heat exchanging mechanism.

Abstract: A canister includes a plurality of activated carbon layers for adsorbing vaporized fuel and a purge pump for introducing purge air into the canister to cause purge gas containing the vaporized fuel to flow out of the canister. At least a part of the purge pump is placed in the chamber defined between the activated carbon layers.