Abstract: The combine may include a threshing tank that is configured to store a threshing product obtained by the threshing device and includes a lower tapered portion formed in a bottom portion. A bottom screw is provided inside the lower tapered portion and configured to discharge the threshing product from the threshing tank. A threshing discharge device is connected to the bottom screw and configured to convey the threshing product from the bottom screw and discharge the threshing product in a body outward direction. The threshing tank includes an inspection port formed in a bottom section of the lower tapered portion, and a lid configured to open and close the inspection port, and the lid opens and closes by swinging upward and downward about a swing axis that is not parallel with a screw axis of the bottom screw.

Abstract: In pressure increasing control for raising a pressure within a sealed type fuel tank from an excessive negative pressure to a low negative pressure, an opening or closing operation of a sealing valve, when the interior of a vehicle is very quiet, may cause the working noise thereof to be transmitted to a passenger, thereby deteriorating the noise characteristic. When the pressure within a fuel tank is below a predetermined negative pressure near a saturated vapor pressure of the fuel and an interior noise level is equal to or greater than a threshold value, a controller may operate a sealing valve to thereby raise the pressure of the fuel tank to a normal negative pressure region which may be higher than the predetermined negative pressure.

Abstract: In pressure increasing control for raising a pressure within a sealed type fuel tank from an excessive negative pressure to a low negative pressure, an opening or closing operation of a sealing valve, when the interior of a vehicle is very quiet, may cause the working noise thereof to be transmitted to a passenger, thereby deteriorating the noise characteristic. When the pressure within a fuel tank is below a predetermined negative pressure near a saturated vapor pressure of the fuel and an interior noise level is equal to or greater than a threshold value, a controller may operate a sealing valve to thereby raise the pressure of the fuel tank to a normal negative pressure region which may be higher than the predetermined negative pressure.

Abstract: An evaporation system leak diagnostic apparatus that purges fuel vapor from a fuel tank into an intake system of an internal combustion engine via a canister, includes: a first closed system leak diagnostic unit that executes a leak diagnostic on a first closed system based on a tank internal pressure detected by a tank internal pressure detecting device while the first closed system is formed with a first closed system forming device; and a second closed system leak diagnostic unit that introduces pressure in the first closed system into a second closed system by forming a second closed system with a second closed system forming device, and executes a leak diagnostic on the second closed system based on the tank internal pressure detected by the tank internal pressure detecting device, after the leak diagnostic by the first closed system leak diagnostic unit.

Abstract: An evaporation system leak diagnostic apparatus that purges fuel vapor from a fuel tank into an intake system of an internal combustion engine via a canister, includes: a first closed system leak diagnostic unit that executes a leak diagnostic on a first closed system based on a tank internal pressure detected by a tank internal pressure detecting device while the first closed system is formed with a first closed system forming device; and a second closed system leak diagnostic unit that introduces pressure in the first closed system into a second closed system by forming a second closed system with a second closed system forming device, and executes a leak diagnostic on the second closed system based on the tank internal pressure detected by the tank internal pressure detecting device, after the leak diagnostic by the first closed system leak diagnostic unit.

Abstract: A pair of stationary contacts is held on the inner wall of a cylindrical case. The case is closed by a cover having a through-hole, and a bearing is fixed on the cover, such that an operation shaft extends through the bearing such as to be vertically displaceable with respect to the case. The operation shaft is biased upwards by a coil spring provided between its lower end and the bottom surface of the case. A contact piece having a plurality of movable contacts is inserted between the lower end of the operation shaft and the spring, such that it makes contact with the stationary contacts and separates therefrom along with the axial movements of the operation shaft.

Abstract: Hydrogen gas from an generator (1) is occluded in a hydrogen recovery container (20), thereafter, in the initial stage during which hydrogen gas is released from the hydrogen recovery container (20), initially purged hydrogen gas containing much amount of impure gas is introduced from the hydrogen recovery container (20) to a gas tank (2) and saved therein, then, hydrogen gas having high purity released from a hydrogen absorbing alloy in the hydrogen recovery container (20) is refluxed to the generator (1), and this process comprising absorbing and releasing of hydrogen gas in the hydrogen recovery container (20) and saving in the gas tank (2) is repeated once or several times, successively, the hydrogen gas containing much amount of impure gas saved in the gas tank (2) is introduced in the hydrogen recovery container (20) and occluded therein, thereafter, in the initial stage during which hydrogen gas is released from the hydrogen recovery container (20), the hydrogen gas containing much amount of impure gas