Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 ?m?Ra?1.67 ?m.

Abstract: An evaporated fuel processing device may include a flow passage through which evaporated fuel generated in a fuel tank flows; a first adsorbent constituted of activated carbon and arranged in the flow passage for adsorbing the evaporated fuel flowing in the flow passage; and a second adsorbent constituted of a porous metal complex and arranged in the flow passage on a downstream side of the first adsorbent for adsorbing the evaporated fuel having passed through the first adsorbent and flowing in the flow passage on the downstream side of the first adsorbent.

Abstract: A leakage detector for fuel vapor treatment device is configured to diagnose a leakage of a fuel vapor in a vapor path based on an internal pressure change of the vapor path with the vapor path functioning as a closed space. The leakage detector performs the leakage diagnosis of the vapor path by correcting the effect of the pressure of the fuel vapor with regards to the internal pressure change. The leakage detector comprises a vaporization promoting device and is configured to determine whether the fuel vapor in the gas space of a fuel pump has reached a saturated state.

Abstract: An evaporated fuel processing device may include a flow passage through which evaporated fuel generated in a fuel tank flows; a first adsorbent constituted of activated carbon and arranged in the flow passage for adsorbing the evaporated fuel flowing in the flow passage; and a second adsorbent constituted of a porous metal complex and arranged in the flow passage on a downstream side of the first adsorbent for adsorbing the evaporated fuel having passed through the first adsorbent and flowing in the flow passage on the downstream side of the first adsorbent.

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: In an evaporated fuel treatment apparatus including a bypass passage branching from an atmosphere passage and connected to a canister by detouring around at least one ii and a bypass valve to open and close the bypass passage, a controller holds the bypass valve in a closed state until an integrated purge flow rate reaches a predetermined value after start of purge control, the integrated purge flow rate being an integrated value of flow rate of purge gas flowing through a purge passage. When the integrated purge flow rate reaches the predetermined value, the controller turns the bypass valve to an open state.

Abstract: A leakage diagnosis device is configured to detect leakage from a fuel vapor processing apparatus based on the internal pressure thereof. The fuel vapor processing apparatus includes a fuel tank and a canister in fluid communication with each other via a vapor passage. The leakage diagnosis device includes a negative pressure generator configured to generate a negative pressure therein to move gas from the canister to the fuel tank via a bypass passage. The vapor passage has an electrically controlled closing valve and a first mechanical check valve that are arranged in parallel. The first mechanical check valve is configured to be opened without electrical control to allow the fluid flow from the fuel tank to the canister. The bypass passage has a second mechanical check valve configured to be opened without electrical control to allow the fluid flow from the canister to the fuel tank.

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 treatment apparatus includes a partition wall for dividing the inside of a canister into a first region located close to a purge passage and a fuel tank and a second region located close to an atmosphere passage, an electromagnetic valve provided in the partition wall and configured to open and close between the first and second regions, a small hole provided in the partition wall to release the pressure between the first and second regions, and a determination unit for performing a leak determination of the apparatus and a failure determination of a purge valve and the electromagnetic valve based on behaviors of the internal pressure of the canister according to opening and closing operations of the electromagnetic valve.

Abstract: In an evaporated fuel treatment apparatus including a bypass passage branching from an atmosphere passage and connected to a canister by detouring around at least one ii and a bypass valve to open and close the bypass passage, a controller holds the bypass valve in a closed state until an integrated purge flow rate reaches a predetermined value after start of purge control, the integrated purge flow rate being an integrated value of flow rate of purge gas flowing through a purge passage. When the integrated purge flow rate reaches the predetermined value, the controller turns the bypass valve to an open state.

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: 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: 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: 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 fuel tank system includes a fuel tank, a canister, a first path, a pump, a switching device, a reference path, a first on-off valve, a second on-off valve, a third on-off valve, a pressure sensor, and a control device configured to control the pump, the switching device, the first on-off valve, the second on-off valve, and the third on-off valve and determine a system state based on a pressure measured by the pressure sensor.

Abstract: A fuel tank system includes a fuel tank, a canister, a first path, a pump, a switching device, a reference path, a first on-off valve, a second on-off valve, a third on-off valve, a pressure sensor, and a control device configured to control the pump, the switching device, the first on-off valve, the second on-off valve, and the third on-off valve and determine a system state based on a pressure measured by the pressure sensor.

Abstract: A fuel vapor processing apparatus may include a container including an atmospheric introduction portion, through which the atmospheric air can be introduce into the container. An adsorption material may be contained in the container and configured to adsorb feel vapor and to allow the adsorbed fuel vapor to be desorbed as the atmospheric air introduced into the container flows through the adsorption material. A heater may directly or indirectly heat a part of the adsorption material located at an upstream end with respect to the flow of the atmospheric air.

Abstract: A fuel vapor processing apparatus may include a container including an atmospheric introduction portion, through which atmospheric air is introduce into the container. An adsorption material may be contained in the container and may be configured to adsorb fuel vapor and to allow the adsorbed fuel vapor to be desorbed from the adsorption material as the atmospheric air introduced into the container flows through the adsorption material. A heater may heat the adsorption material for promoting desorption of fuel vapor and may have a heating value decreasing along a length of the heater in a flow direction of the atmospheric air through the adsorption material for desorption of fuel vapor.

Abstract: A failure detecting device for a fuel vapor processing system may include a leakage determination device configured to determine leakage of fuel vapor from a target region of the fuel vapor processing system. The leakage determination device may include a canister closed valve provided in an atmospheric passage connected between a canister and an atmosphere. The canister closed valve may switch between an open position and a closed upon receiving a supply of electric power, and may maintain the open position or the closed position when no electric power is received.

Abstract: A fuel vapor processing apparatus may include a container including an atmospheric introduction portion, through which the atmospheric air can be introduce into the container. An adsorption material may be contained in the container and configured to adsorb feel vapor and to allow the adsorbed fuel vapor to be desorbed as the atmospheric air introduced into the container flows through the adsorption material. A heater may directly or indirectly heat a part of the adsorption material located at an upstream end with respect to the flow of the atmospheric air.