摘要:
A canister communicates with an intake manifold of an internal combustion engine through a purge pipe. The canister absorbs fuel vapor evaporated in a fuel tank. The absorbed fuel vapor is purged into the intake manifold when the engine is on. A gas leak check module communicates with the canister for drawing air by an air suction pump 43. When the engine is off, the air suction pump is driven and draws hydrocarbon floating at a vicinity of an intake port through the purge pipe. Thus, the hydrocarbon floating at the vicinity of the intake port is absorbed in the canister so that emission of hydrocarbon is reduced.
摘要:
A canister communicates with an intake manifold of an internal combustion engine through a purge pipe. The canister absorbs fuel vapor evaporated in a fuel tank. The absorbed fuel vapor is purged into the intake manifold when the engine is on. A gas leak check module communicates with the canister for drawing air by an air suction pump 43. When the engine is off, the air suction pump is driven and draws hydrocarbon floating at a vicinity of an intake port through the purge pipe. Thus, the hydrocarbon floating at the vicinity of the intake port is absorbed in the canister so that emission of hydrocarbon is reduced.
摘要:
A bypass passage for bypassing a check valve is connected with a vacuum introducing passage of a brake booster. The bypass passage is provided with a switching valve. Just before the start of an engine, the switching valve temporarily opens the bypass passage whereby to equalize a remaining pressure of the brake booster substantially becomes equal to an atmospheric level. As a result, the pressure in the brake booster at the starting time is set to substantially the atmospheric level so that the airflow to be sucked from the brake booster into the intake pipe at the starting time is made substantially contact every times. Thus, the fuel injection rate can be set considering the airflow to be sucked from the brake booster into the intake pipe at the starting time, even if that airflow cannot be detected.
摘要:
A rapid catalyst warm-up control device for an internal combustion engine performs irregular injection dither control during the rapid catalyst warm-up control after starting the engine. In the irregular injection dither control, injection modes are switched after every fuel injection to the cylinders (every 180° CA for a 4-cylinder engine) between a lean injection mode and a rich injection mode in such a pattern that rich injections will not occur consecutively for the same cylinder (dither cycle=540° CA, 900° CA, 1080° CA, or the like). In the lean injection mode, fuel is injected such that the air-fuel ratio is leaner than the stoichiometric ratio, and in the rich injection mode, air-fuel ratio is richer than the stoichiometric ratio. The rich gas emitted from the cylinders where the rich injection has been performed is thus allowed to flow through a different catalyst region every time instead of flowing only through the same region.
摘要:
According to the present invention, there is provided a canister comprising: a casing having an interior therein and a separator for separating the interior into first and second interior sections, the first interior section containing an absorbent and having a fuel vapor inlet and a fuel vapor outlet, the second interior section containing an absorbent and having an opening which is open to the outside air, the separator having fuel vapor channels therein and being formed by compressing a flexible filtering material to elongate the channels.
摘要:
A wood preservative comprising a styryl triazole derivative of the formula [I] ##STR1## wherein X represents chlorine or hydrogen as an active ingredient. The present wood preservative has a wood-preservating efficacy equivalent to and remarkably improved light resistance as compared with a conventional organic iodine compound slightly inferior in light resistance, and therefore, exhibits a stabilized wood-preservating efficacy without causing discoloration even under irradiation with light.
摘要:
A surge absorber including a surge absorbing element for protecting communication equipment from transient surges and a thermal response switch with an automatic restoration function connected in parallel with the surge absorbing element. The inventive surge absorber prevents abnormal and deleterious heating of the surge absorbing element when continuous overvoltages or overcurrents are applied to the surge absorber.
摘要:
An automotive vehicle having a fluid-operated, four wheel steering system for steering not only the front wheel pair, but also the rear wheel pair as a function of the amount of turn of the front wheel pair with respect to the direction of straightforward run of the vehicle. The system makes use of a front cylinder operatively associated with a steering gear assembly and a rear cylinder operated by a fluid medium supplied from the front cylinder for steering the rear wheel pair. In order for the steering system to be responsive to the vehicle running speed thereby to control the amount of turn of the rear wheel pair appropriate for a particular range of vehicle running speed, a device is provided for accommodating a portion of the fluid medium to be supplied to the rear cylinder when the pressure of the fluid medium increases to a value higher than a predetermined pressure. Increase of the fluid pressure over the predetermined value takes place when the steering wheel is turned during the low speed run of the vehicle.
摘要:
Termites are prevented by applying thereto microencapsulated organophosphorus termite controlling composition in an amount of 5-100 g as an effective ingredient. The composition comprises an organophosphorus insecticidal compound encapsulated in a microcapsule formed of a polyurea or polyurethane wall and having an average particle diameter of not more than 80 .mu.m, a wall thickness of 0.1-1 .mu.m, and a value of the average particle diameter/wall thickness of 20-400.
摘要:
A fabric protectant comprising a cellulosic material having a bulk density of 0.2 to 0.7 g/cm3 and a thickness of 0.1 to 4 mm and a composition containing as an active ingredient 2,3,5,6-tetrafluorobenzyl (+)-1R,trans-2,2-dimethyl-3-(2,2-dichlorovinyl)cyclo-propanecarboxylate, said cellulosic material having the composition supported thereon or being impregnated with the composition, which maintains a stable attack-preventing effect over a long period of time.
摘要翻译:一种织物保护剂,其包含体积密度为0.2至0.7g / cm 3和厚度为0.1至4mm的纤维素材料和包含作为活性成分的组合物(+) - 1R,反式 -2,2-二甲基-3-(2,2-二氯乙烯基)环丙烷羧酸酯,所述纤维素材料具有支撑在其上的组合物或浸渍有组合物,其长时间保持了稳定的防止攻击的效果。