Abstract:
A viscous fluid type heater is disclosed. A heat chamber and a heat exchange chamber are disposed closed to each other. The heat chamber accommodates viscous fluid and a rotor that rotates and shears the viscous fluid to generate the heat. The heat is transmitted to the heat exchange chamber thereby circulating fluid passing through the heat exchange chamber is heated. The rotor is made of a first material having a heat conductivity of 100 W/mK.
Abstract:
An improved viscous heater is disclosed. The viscous heater has a heating chamber accommodating viscous fluid and a rotor. The rotor rotates to shear and heat the viscous fluid. The heating chamber has a pair of inner flat surfaces and an inner peripheral surface. The rotor has a pair of outer flat surfaces that respectively opposes the inner flat surfaces by predetermined gaps and an outer peripheral surface that opposes the inner peripheral surface. The outer peripheral surface has peripheral edge portions each angularly and continuously extending from the outer flat surface. The peripheral edge is chamfered so that the rotor is prevented from interfering with the inner flat surfaces.
Abstract:
A variable capacity type viscous heater is provided in which the capacity reduction is carried out securely, and which can inhibit a viscous fluid from deteriorating the endurable heat generation even after a long period of service. For instance, it includes a heat-generating chamber, a collector passage, a supply passage, and a control chamber, which are formed therein. The collector passage is communicated with a central region of the heat-generating chamber, and is capable of opening and closing. The supply passage is communicated with a lower region of the heat-generating chamber. The control chamber is communicated with the collector passage and the supply passage. A silicone oil, held in the heat-generating chamber, is collected into the control chamber by the Weissenberg effect by way of the opened collector passage, thereby carrying out the capacity reduction. Whilst, the silicone oil, held in the control chamber, is supplied into the heat-generating chamber by way of the supply passage, thereby carrying out the capacity enlargement.
Abstract:
A variable capacity type viscous heater is provided which can carry out the capacity control reliably, and which can inhibit the endurable heat-generating efficiency of a viscous fluid from deteriorating even after a long period of service. For instance, its rear housing 6 is provided with a control chamber 9 which is communicated with a central region of a heat-generating chamber 7, and which has an internal volume capable of expanding and contracting. When a rotor 14 is kept rotated, a silicone oil held, in the heat-generating chamber 7, expands the internal volume of the control chamber 9 by the Weissenberg effect in the capacity reduction. As a result, the heating is relieved, because the silicone oil, held in the heat-generating chamber 7, is collected into the control chamber 9.
Abstract:
A viscous fluid type heat generator adapted for being incorporated in a heating system has front and rear housings in which a heat generating chamber containing therein a viscous fluid and a heat receiving chamber permitting a heat exchanging liquid to flow therethrough. The heat generator also has a drive shaft rotatably supported by an anti-friction bearing unit and having mounted thereon a rotor element rotating in the heat generating chamber to apply a shearing action by which the viscous fluid generates heat absorbed by the heat exchanging liquid flowing in the heat receiving chamber. The heat generator has an intermediate substance unit arranged between the heat generating chamber and the anti-friction bearing unit so as to provide a thermal isolation therebetween. The intermediate substance unit may be a shaft sealing unit, a closed vacant chamber or a combination of the shaft sealing unit and the closed vacant chamber.
Abstract:
A viscous heater is provided which can be manufactured readily and less expensively. For instance, it includes a rear housing 6 which is constituted by a rear plate 2 and a rear housing body 3. The rear plate 2, the rear housing body 3 and a front housing 1 are overlapped and fastened by a through bolt 5, and thereby a rear water jacket RW is formed by the rear plate 2 and the rear housing body 3.
Abstract:
The present invention provides a marking ink for a covered electrical conductor utilized for a wire harness of a motor vehicle. The marking ink is printed on the covered conductor formed with polyolefin such as polyethylene and provides a high adherence (coloring), high wear resistance, high productivity, fast drying, and moderate spreading. The marking ink for the covered electrical conductor contains an acrylate resin with molecular weight of 10,500-93,000.
Abstract:
A coloring apparatus for coloring an electric wire colors the wire spouts a liquid coloring agent, including a coloring material and a solvent, toward an outer surface of the wire with a specific amount thereof at a time. The coloring apparatus includes a coloring agent supply source for receiving the coloring agent, a coloring nozzle and a heater. The coloring nozzle spouts the coloring agent of the coloring agent supply source. The heater includes a heating bath and a hot air inlet. The heating bath receives the coloring nozzle. The heating bath allows the coloring nozzle to spout the coloring agent. The hot air inlet supplies hot air into the heating bath to heat the coloring agent supply source. The heater heats the coloring agent to a range lower than a boiling point of the solvent by the hot air inlet supplying the hot air into the heating bath.
Abstract:
An object of the present invention is to provide an apparatus and a method for injecting assuredly a given amount of a coloring agent to an outer surface of an electric wire and coloring it. An apparatus for coloring an electric wire 1 includes coloring nozzles 31. The coloring nozzles 31 each has a solenoid valve 51 to inject or stop injection of a coloring agent to an outer surface 3a of an electric wire by opening or closing the solenoid valve. A spike voltage is applied to a coil 40 of the solenoid valve 51 when the coloring agent is injected. The spike voltage is a voltage applied to the coil 40 which is necessary to open the solenoid valve 51. The spike voltage is applied to the coil 40 to open the solenoid valve 51 and stopped after a given period of time.
Abstract:
An object of the present invention is to provide a method and an apparatus for marking an electric wire at a low cost. An apparatus 1 for marking an electric wire forms a band mark 21 on a part of an outer face 5a of the electric wire 3. The band mark 21 is formed along the entire circumference of the part of the outer face 5a of the electric wire 3. The marking apparatus 1 tightens the electric wire 3 in a state where a tensile force is applied in a longitudinal direction. The marking apparatus 1 includes a nozzle 35 for injecting coloring agent toward an uppermost position 10 of the outer face 5a of the electric wire 3. The nozzle 35 has an open end 42 which is opposed to the electric wire 3 and capable of passing the coloring agent. A straight line L extending between a center C1 of the open end 42 and a center C2 of the electric wire 3 lies along a vertical direction.