摘要:
An evaporator may include an outer enclosure and a wick within the outer enclosure. The wick may have an outer lateral side surface positioned adjacent to the outer enclosure and may comprise a plurality of circumferential grooves formed in the outer lateral side surface of the wick and a plurality of channels fluidly connected to the plurality of circumferential grooves. The evaporator may include an outer enclosure and an end cap bonded directly to the outer enclosure, contacting the wick, and having a thermal conductivity that is less than the thermal conductivity of the outer enclosure.
摘要:
A heat transfer system includes a first loop and a second loop. The first loop includes a condenser having a vapor inlet and a liquid outlet, a vapor line in fluid communication with the vapor inlet of the condenser, a liquid line in fluid communication with the liquid outlet of the condenser, and primary evaporators fluidly coupled in series with the liquid line and in parallel with the vapor line. The second loop includes a reservoir, a secondary evaporator having a vapor outlet coupled to the vapor line and a fluid inlet coupled to the reservoir, and a sweepage line in fluid communication with the reservoir and the primary evaporators.
摘要:
A heat transfer system includes a first loop and a second loop. The first loop includes a condenser having a vapor inlet and a liquid outlet, a vapor line in fluid communication with the vapor inlet of the condenser, a liquid line in fluid communication with the liquid outlet of the condenser, and primary evaporators fluidly coupled in series with the liquid line and in parallel with the vapor line. The second loop includes a reservoir, a secondary evaporator having a vapor outlet coupled to the vapor line and a fluid inlet coupled to the reservoir, and a sweepage line in fluid communication with the reservoir and the primary evaporators.
摘要:
An evaporator includes an outer fluid enclosure, a liquid inlet port extending through the outer fluid enclosure, a liquid-distribution structure, a wick, and a vapor removal channel. The liquid-distribution structure is joined to the outer fluid enclosure to form a fluidly sealed hermetic chamber. The liquid-distribution structure includes a vapor barrier wall having an outer heat-receiving surface and the liquid-distribution structure is configured to distribute liquid over an inner surface of the vapor barrier wall. The wick is positioned inside the fluidly sealed hermetic chamber and is coupled to a liquid inlet port. The vapor removal channel is defined by and is in fluid communication with the wick and the liquid-distribution structure, and is near the outer heat-receiving surface of the vapor barrier wall. A thermal conductance of the liquid-distribution structure is higher than a thermal conductance of the wick.
摘要:
This invention relates to a process for coating a substrate which comprises contacting the substrate with a low volatility organic (so-called "low VOC") coating composition having a viscosity as measured by ZAHN cup 2 of less than about 200 seconds and consisting essentially of at least one polyisocyanate prepolymer which is the reaction product of a polyisocyanate with an active hydrogen-containing compound selected from the group consisting of monoahls, polyols, imines, oxazolidines, and combinations thereof, a solvent in an amount of between 0% and 45% by weight based upon the amount of said polyisocyanate in said composition, and a tertiary amine catalyst, said composition being essentially free of any volatile mono- and di-isocyanates, and said composition being moisture curable upon exposure to atmospheric moisture. Also claimed is the coating composition itself.
摘要:
A packet switch arrangement in which a first plurality of user devices is connected to a packet network by a first interface unit and a second plurality of user devices is connected to the packet network by a second interface unit. A virtual circuit is established between the interface units and control information is exchanged over the virtual circuit. The control information defines virtual channels on the virtual circuit and ones of the first and second pluralities of user devices which are to be sources and destinations for data in the defined virtual channels. Data from user devices is packetized and transmitted in the virtual channels by the interface units in accordance with the exchanged control information. Further, packets received in virtual channels on the virtual circuit are distributed to user devices by the interface units in accordance with exchanged control information.
摘要:
A noise-producing accessory for a bicycle includes a body member having a flexible flap section at one end thereof. The body member is mounted to the bicycle frame such that the flexible flap section can be positioned into frictional contact with the external diameter of a bicycle tire to produce a realistic moto-cross type sound as the tire rotates. Preferably, at least a portion of a facing surface of the accessory is reflective such that the accessory can be used both as the standard rear reflector of a bicycle and a motocross sound generator. Preferably, the accessory can assume a variety of different shapes.
摘要:
A leak standard generator which utilizes the diffusion properties of a gas or vapor to deliver a uniform rate of flow of a leak sample into a diluent gas stream. The generator includes a reservoir containing the leak sample, a discharge head through which is passed a metered flow of diluent gas and a diffusion tube of prescribed dimensions for carrying a gas or vapor of the sample from the reservoir into the diluent gas stream moving through the discharge head. Heating means are provided to maintain the reservoir and the diffusion tube at different temperature levels to promote uniform movement of the sample gas or vapor into the diluent stream.
摘要:
A method for steam backwashing a filter assembly. The filter assembly has a housing for receiving contaminated liquid and discharging filtered liquid, a filter positioned within the housing for filtering the contaminated liquid, and a drain coupled with the housing. Steam is sent through the housing to remove contaminants from the filter without draining the contaminated liquid or the filtered liquid from the housing. The steam forces the contaminated liquid, the filtered liquid and the contaminants through the drain.
摘要:
Two-component polyurethane coating formulations comprising an aqueous dispersion of a polyisocyanate and a neutralized, water-dispersible resin are disclosed. The neutralized, water-dispersible resin incorporates recurring units of an allylic alcohol or an alkoxylated allylic alcohol. These low-VOC formulations use commercial polyisocyanates and ordinary mixing techniques. The uniquely uniform distribution of hydroxyl groups in the resin contributes to an excellent overall balance of coating properties from the 2K system, including high gloss, hardness, impact resistance, flexibility, weatherability, and chemical resistance.