摘要:
When a fluctuation of engine speed is detected during idling of an engine, an opening degree of the flow control valve provided in an idle bypass pipe is changed at a comparatively high rate of change. Based upon this, when the rate of change of the engine speed approaches zero, it rapidly changes the opening degree to maintain a value related to intake pipe pressure or an accumulated value of the intake pipe pressure and the engine speed at that point, or until the value is reached at a range which a gentle change is possible. Consequently, for example, when the engine speed drops, the intake air flow is increased at a comparatively high rate of change, and it is possible to prevent engine stalling. Further more, when the rate of change of the engine speed passes through zero and begins to rise, the intake air flow is rapidly reduced until the value is reached the range at which the torque at that point can be maintained, and so called quick response due to overcontrol is prevented. In this way, with a high control gain, it performs idle speed control having more favorable stability.
摘要:
The discharge tube has an insulating tube formed into a hollow cylinder with one end open and the other closed. An anode electrode, which is formed as a flanged electrode, is hermetically fitted to the open end of the insulating tube and a cathode electrode, which is formed as a bar electrode, is embedded in the closed end of the insulating tube so that only the front end surface of the bar electrode faces the interior of the insulating tube. This construction allows no redundant space within the insulating tube other than the dishcarge space, so that the discharge tube can be minimized in size. This construction also permits a discharge only between the front end of the bar electrode and the inner end of the flanged electrode, stabilizing the electron emission passage or discharge path and therefore the discharge voltage.
摘要:
Silicone surface-treated magnesium hydroxide which is surface treated by a silicone oil, the silicone oil comprising: a polyorganosiloxane containing a plurality of first siloxane units each of which contains hydrogen atom bonded silicon atom. The first siloxane units shares 50 mol % or less of total siloxane units in one molecule in average. Accordingly, sufficient fire retardancy and mechanical properties such as sufficient elongation are achieved.
摘要:
A flame retardant is provided which has excellent dispersibility in resin ingredients and can give flame-retardant resin moldings excellent in flame retardancy and mechanical properties. The flame retardant comprises magnesium hydroxide particles, a higher fatty acid, preferably stearic acid, bonded to part of the surface of the magnesium hydroxide particles, and a silicone oil having reactivity bonded to that surface part of the magnesium hydroxide particles which does not have the higher fatty acid bonded thereto.
摘要:
A suction chamber and a discharge chamber are defined in a front housing member. A crank chamber is defined between a cylinder block and a rear housing member. A drive shaft passes through the suction chamber and extends from a front end of a housing. The drive shaft is supported by the housing. A shaft sealing assembly for sealing the drive shaft is located in the suction chamber. In the cylinder block and a valve plate, a bleed passage is formed for connecting the crank chamber with the suction chamber. The bleed passage is inclined downward toward the suction chamber. The outlet of the bleed passage is above the shaft sealing assembly. In the suction chamber, a reservoir, which stores lubricating oil supplied through the bleed passage, is surrounds a lower part of the shaft sealing assembly.
摘要:
A compressor includes a piston reciprocating in a cylinder bore. The piston draws refrigerant into and discharges refrigerant from a compression chamber, which is formed between the piston and a valve plate. The valve plate has a discharge port connecting the compression chamber to the discharge chamber. A guide passage facilitates the flow of the refrigerant from the compression chamber to the discharge port. The guide passage is defined in the compression chamber when the piston is located at the top dead center position. This decreases pressure losses that would otherwise occur when the piston is near the top dead center position.
摘要:
A viscous fluid type supplementary heat generator having a housing assembly defining a fluid containing chamber including a hermetically sealed heat generating chamber in which a viscous fluid is filled to generate heat when the viscous fluid is subjected to shearing action applied by the rotation of a rotor element rotatably arranged in the heat generating chamber. The fluid containing chamber has a predetermined substantial volume with respect to which the volume of the viscous fluid filled in the fluid containing chamber is set at a value between 50% through 70%, i.e., the filling rate of the viscous fluid relative to the substantial volume of the fluid containing chamber of the viscous fluid type heat generator is determined to be a value between 0.5 through 0.7. The determination of the filling rate of the viscous fluid is made so as to protect an oil sealing device sealing the heat generating chamber from being damaged or broken by an excessive pressure prevailing in the heat generating chamber.
摘要:
Two auxiliary machines are mounted in tandem to an automobile and coupled together by a power transmitting device to transmit power of the engine to both of two auxiliary machines. The power transmitting device includes a rotor, a first hub portion adapted to be operably connected to the rotor and fixed to the drive shaft of the first auxiliary machines and a second hub portion adapted to be operably connected to the rotor and fixed to the drive shaft of the second auxiliary machine First and second hub portions are rotatable simultaneously or separately. An electromagnetic clutch can be inserted in the power transmission device.
摘要:
A cooling and a heating system for a vehicle having a refrigerant compressor of a variable displacement type and a viscous heater of a variable heating capacity, integrated by a common, intermediate housing. A space needed for an installation into an engine compartment of a vehicle is saved, while the production cost is reduced. Furthermore, a requirement for reduction of a fuel consumption efficiency at a low outside air temperature condition and a degradation of a lubricant at a high outside air temperature condition, which are otherwise contradictory, are harmonized.
摘要:
A viscous fluid type heat generator which comprises a housing assembly defining therein a heat generating chamber in which heat is generated, and a heat receiving chamber arranged adjacent to the heat generating chamber for permitting a heat exchanging fluid to circulate therethrough to receive heat transferred from the heat generating chamber. A drive shaft is rotatably supported by the housing assembly and is operationally connected to an external rotation-drive source. A rotor element is mounted onto and driven by the drive shaft for rotation within the heat generating chamber. A viscous fluid is held in a gap defined between the inner wall surfaces of the heat generating chamber and the outer surfaces of the rotor element, for heat generation under shearing stress applied by the rotating rotor element. A temperature sensor is provided to detect a temperature of a part of the viscous fluid flowing in an outer peripheral region of the gap. Heat generation suppressing means is provided for suppressing the heat generation of the viscous fluid under the shearing stress when the temperature of the part of the viscous fluid, detected by the temperature sensor, exceeds a predetermined limit temperature.