摘要:
A viscous fluid type heat generator having a sealed heat generating chamber in which heat generation in the viscous fluid is carried out in response to the rotation of a rotor element received in the heat generating chamber and applying a shearing action to the viscous fluid, the sealed heat generating chamber having front and rear heat generating chamber portions on both sides of the rotor element and a large annular gap extending between the front and rear heat generating chamber portions and surrounding the rotor element to provide a fluid communication between the front and rear heat generating chamber portions in order to prevent the viscous fluid in the first and second heat generating portions from being unequally degraded.
摘要:
A viscous fluid type heat generator including a drive shaft for receiving a rotative drive force from an external drive source and mounting thereon a plurality of rotor elements to be rotated together with the drive shaft, a housing assembly in which at least one first heat generating component chamber confining therein a heat generative viscous fluid to which a shearing action is applied by the rotor elements, a second heat-generating-performance variable chamber confining a heat generative viscous fluid to which shearing action is applied by the rotor element, and a heat receiving chamber in which heat exchanging liquid flows therethrough to receive heat from the first and second heat generating chambers. The viscous fluid type heat generator further may includes a control chamber for controlling an amount of the viscous fluid in the second heat-generating-performance variable chamber, and a heat-generating-performance changing unit.
摘要:
An automobile heating system adapted for being incorporated in an automobile climate control system and being mounted on an engine housing within an engine compartment of an automobile without occupying a large space. The automobile heating system may be manufactured at low cost, and satisfactorily heats the passenger cabin of the automobile and enables the engine to quickly warm up after the start of the engine. The automobile heating system is provided with an auxiliary heat source integrally combined with one of the auxiliary machines including an idler, a power steering hydraulic pump or an alternator.
摘要:
A viscous fluid type heat generator is provided with a case unit having a front case and a rear case and has an inner surface defining a heat generating chamber, a heat receiving chamber formed in at least one of the front case and the rear case so as to extend contiguously with the heat generating chamber to form a heat exchanging fluid passage through which a heat exchanging fluid is circulated, a drive shaft supported for rotation in a bearing on the front case, a rotor element mounted on the drive shaft for rotation together with the drive shaft in the heat generating chamber, a viscous fluid filling up a space between the inner surface of the case defining the heating chamber and the outer surface of the rotor for heat generation by the rotation of the rotor element, and a connecting unit for connecting the rotor element to the drive shaft so that the rotor element is unable to turn relative to the drive shaft but is able to incline to the axis of the drive shaft and to move axially on the drive shaft. The connecting unit may be a spline fitting, a one-flat fitting or a two-flat fitting.
摘要:
Provided herein is a resin composite material containing graphite fiber which has good electrical conductivity and changes only a little in electrical resistance after processing. These desired properties are achieved by incorporating a synthetic resin matrix with a specific type of graphite fiber. The graphite fiber has a structure characterized by that the hexagonal network planes of carbon atoms are oriented substantially parallel to the fiber axis and like the annual ring. It is produced by bringing a hydrocarbon compound into contact, at a high temperature, with a metallic catalyst in the form of ultrafine particles to yield carbon fiber grown in the gas phase, and subsequently graphitizing thus obtained carbon fiber.
摘要:
A gas-filled discharge tube for voltage control particularly for the series gap of the ignition system of an automotive spark-ignition engine. The gas-filled discharge tube is capable of operating stably at a sufficiently high discharge inception voltage, requires a sufficiently low discharge sustaining voltage and is capable of accurately controlling the ignition timing of the automotive spark-ignition engine regardless of the variation of the output voltage of the ignition coil of the ignition system. The gas-filled discharge tube is provided with discharge electrodes meeting requirements that the opposite surfaces of the discharge electrodes are substantially flat, the discharge electrodes have no sharp edge, and the product of the diameter of the discharge electrodes and the distance between the discharge electrode is 20 mm.sup.2 or below. The gas-filled discharge tube is filled with a mixed gas having a composition of 50% by volume or below in nitrogen content and 50% or above in argon content.
摘要:
A lean burn internal combustion engine wherein a basic fuel amount is calculated from a map based on the intake pressure and the engine speed, and a lean correction factor, which is multiplied by the basic fuel amount, is calculated from a lean map based on the intake pressure and engine speed. A second lean map based on the throttle opening and engine speed is provided for obtaining a lean correction factor when the degree of opening of the throttle valve is larger than a predetermined value. A lean sensor is provided for obtaining a signal indicating the air fuel ratio for carrying out a feedback control. The lean sensor is provided with a heater for controlling the temperature of the sensing element of the heater. A basic map for the heater power, which is based on the intake pressure and engine speed, is provided, and a correction map for the heater power is provided for reducing the heater power from the value obtained from the basic map when the lean map based on the intake pressure and engine speed is employed for obtaining the lean air-fuel mixture, to prevent thermal damage to the sensor element.
摘要:
An automatic speed control apparatus for controlling the running speed of a vehicle at a constant set speed includes an auxiliary intake passage providing direct communication between portions of a main intake passage upstream and downstream from a throttle valve so as to bypass the throttle valve, an auxiliary intake air valve adapted for controlling the flow rate of air in the auxiliary intake passage, and a fuel supply cut-off means for suspending the supply of fuel to the engine from a moment at which a fuel supply cut-off condition is met, which requires the throttle valve to be set at the minimum opening position and the engine speed to be higher than a predetermined fuel supply cut-off engine speed, until the moment at which a predetermined fuel supply recovery condition is met. An actuator for actuating the throttle valve is controlled so as to vary the degree of opening degree of the throttle valve and enable the vehicle to run at the constant set speed. The auxiliary intake air valve is controlled in such a manner that the flow rate of air in the auxiliary intake passage is reduced before the fuel supply cut-off condition is met during motion of the vehicle under the control of the automatic driving apparatus. The rate of fuel supply to the engine has therefore been reduced before the fuel supply is actually cut-off so that the amount of change in the engine output torque and, hence, the level of shock produced by the change in the engine output torque are reduced when cut-off of the fuel supply is executed.