摘要:
An improved drying system is provided for removing moisture from gases such that a sufficiently dry gaseous sample is available for accurate analyses of the constituent components. The drying system includes a series of selectively permeable drying tubes or tube bundles located in a shell, where the moisture is removed from the gaseous sample via an ionic channel that extends through the tubing walls. The selectively permeable drying tubes allow water vapor to pass through the tube walls, but prevent the adsorption of most other gases. The sample gas is drawn through the tubes, and dried air is made to pass past the tubes in a counterflow direction. The first stage of the selectively permeable drying tubes is heated to raise the dew point of the gas stream, while the later stage is cooled in order to enhance the drying efficiency of the system. In this fashion, water vapor is removed from the gaseous sample stream in a more efficient manner than is presently available.
摘要:
A steel cord is formed by compactly twisting steel filaments together, the steel filaments including a plurality of zigzag filaments and optionally a nonzigzag filament, the zigzag filament being zigzaged two-dimensionally and made up of straight segments each extending between the zigzag peak points, the nonzigzag filament being straight. In case the cord is composed of only the zigzag filaments, the zigzag filaments include at least two kinds of zigzag filaments having different zigzag pitch lengths. In case the cord is composed of both the zigzag filaments and nonzigzag filaments, some of the zigzag and nonzigzag filaments are first loosely twisted together into a bunch, and then a plurality of bunches are twisted together into the cord. In any case, the zigzag pitch length and zigzag wave height of each zigzag filament are substantially constant along the length thereof. A Tire comprises a reinforcing layer such as a tread reinforcing belt layer, carcass, bead reinforcing layer and the like made of the above-mentioned steel cords.
摘要:
A canister is comprised of a casing including a top wall, a vertical wall, first and second chambers formed in the casing and each accommodating an adsorbent, and a partition member partitioning the first and second chambers from each other. A plurality of first protuberances are formed on the inner surface of the top wall at a portion thereof facing toward the first chamber, and a plurality of second protuberances on the inner surface of the vertical wall at a portion thereof facing toward the first chamber. First and second filters are mounted in the first chamber in a fashion abutting on the plurality of the first and second protuberances, respectively. A first space is defined in the top wall between the first filter and the portion of the inner surface of the top wall, and a second space is defined in the vertical wall between the second filter and the portion of the inner surface of the vertical surface and communicates with the first space. A charging port and a purging port are each formed in the top wall at a location corresponding to the first chamber and each open into the first space. An atmospheric air port is formed in the top wall at a location corresponding to the second chamber.
摘要:
A canister includes a partition wall which extends toward the lid member with one end thereof connected to the end wall and opposite sides are connected to an inner surface of the casing body. First and second adsorbent layers, formed by an adsorbent, are retained between first and second filters and a third filter, respectively. The first and second filters are fixedly disposed on opposite sides of the partition wall to define first and second chambers between the first and second filters and the end wall, respectively. The third filter is placed and carried on an inner surface of a support plate which is fitted in the casing body and which has a large number of communication bores. The support plate and a lid member are biased by a spring in a direction to compress the first and second adsorbent layers. An inclination inhibiting portion is provided on at least one of the casing body and the partition wall on the opposite side from the third chamber with respect to the third filter and the support plate at a distance from the third filter which substantially corresponds to a distance between the third filter and the partition wall. Thus, it is possible to prevent a reduction in adsorbing efficiency by preventing the third filter and support plate from inclining.
摘要:
A fuel tank for an automotive vehicle has a tank body for storing fuel. A filler pipe is connected to the tank body. A fuel outlet port device is located within the tank body and connected to an end of the filler pipe. The fuel outlet port device has an outwardly facing fuel outlet opening from which fuel supplied through the filler pipe flows out into the body, and a fuel trap for storing part of the fuel supplied through the filler pipe to thereby prevent evaporative fuel generated within the tank body from flowing into the filler pipe. An evaporative emission control system is also provided, which incorporates the fuel tank.
摘要:
An evaporative fuel-processing system for an internal combustion engine comprises an evaporative emission control system including a canister having an air inlet port formed therein for introducing atmosphere into the canister and accommodating an adsorbent for adsorbing evaporative fuel generated in the fuel tank. A charging passage connects between the canister and the fuel tank. A two-way valve is arranged across the charging passage. A purging passage connects between the canister and the intake system. A purge control valve is arranged across the purging passage. An ECU carries out leak-checking of the evaporative emission control system. A negative pressure responsive-type bypass valve is arranged across a bypass passage bypassing the two-way valve. A negative pressure responsive-type vent shut valve is disposed to open and close the air inlet port of the canister. The ECU controls the bypass valve and the vent shut valve to open and close, by means of negative pressure developed within the intake system.
摘要:
In an evaporative fuel processing device, an evaporative fuel passage communicating at one end to an upper space in a fuel tank is connected at the other end to a refueling line at a location corresponding to a negative pressure introducing hole provided in a lower portion of a tip end of a nozzle during refueling by a refueling nozzle which is constructed so that the refueling by the refueling nozzle is automatically stopped in response to a fuel liquid level reaching the negative pressure introducing hole during refueling. The draft resistance of an evaporative fuel passage interconnecting an inlet of the refueling line and a tank body is set larger than the draft resistance of an evaporative fuel passage interconnecting the tank body and a canister. Thus, the releasing of evaporative fuel from the fuel tank during refueling is effectively inhibited without use of a potentially unreliable seal.
摘要:
A starting fuel supply control system for an internal combustion engine having a purging passage connecting between a canister and an intake passage for purging a mixture of evaporative fuel from a fuel tank and air therethrough into the intake passage, and a purge control valve arranged across the purging passage for controlling the flow rate of the evaporative fuel to be supplied to the intake passage. An ECU detects a flow rate of an evaporative fuel component in the mixture flowing in the purging passage, and sets an amount of fuel to be supplied to the engine at the start thereof, based upon the detected flow rate of the evaporative fuel component.