摘要:
In accordance with the present invention, there is provided a tubular heat exchanger wherein a central tube is employed to enclose an internal heated fluid which ascends inside the central tube. The heated fluid is then radially disbursed as it converges toward the internal surface of a top cover of the heat exchanger assembly, being forced outwardly under the top flange by the updraft force of the heated fluid, which forces the heated fluid downwardly apportioning the heated fluid around equally spaced axially arranged heat transfer tubes surrounded by an outer tube which are in sealed engagement with the top flange and attach at the bottom in sealing engagement with the exhaust collection manifold. The heated fluid descends around the tubes and enters an exhaust manifold exiting through an exhaust pipe. The heat transfer fluid enters a lower plenum and flows around the heat exchanger core into an upper plenum.
摘要:
A tubular heat exchanger employing radially arranged heat exchange tubes surrounding and attached to a center tube enclosing a heat source by an annular top flange attached to a removable top cover above the tube arrangement. The heat exchange tubes are connected at the bottom to an exhaust collection manifold which is in turn connected to an exhaust outlet pipe vented to the atmosphere. As heated fluid ascends inside the center tube, it is forced outwardly inside the top cover, apportioning the heated fluid into equally spaced radially arranged heat exchange tubes. The heated fluid descends inside the heat exchange tubes, disbursing heat outwardly through the walls of the heat exchange tubes into the ascending heat transfer fluid. The mostly cooled heated fluid is collected and recombined in the exhaust collection manifold and into the exhaust outlet pipe. The heat transfer fluid ascends above the top cover for final utilization.
摘要:
The present invention relates to a replaceable fluid container for an engine comprising: a first reservoir for holding a fluid; a second reservoir for holding a composition to be added to the fluid; a fluid coupling adapted to provide fluidic communication between the first reservoir and a fluid circulation system of the engine; and a dose controller to provide a dose of the composition into the fluid for circulation in a fluid circulation system of the engine.
摘要:
A system receives data describing a light state of a traffic light and timing status of the traffic light. The light states include a first state indicating the traffic light is displaying a stop signal, and a second state indicating the traffic light is not displaying a stop signal. The timing status describes the time remaining of current state to transition to another state. The system determines, based on the state of the traffic light and the timing status, one of a plurality of messages on the display device. The messages include a first message to shut off an engine.
摘要:
An optical sensor comprising a waveguide having a sensing layer which is molecularly imprinted such that it will receive and retain target entities to be sensed, the optical sensor further comprising a detection apparatus arranged to detect a change of an optical property of the waveguide which occurs when the target entities are received and retained in the sensing layer.
摘要:
The food product machine with a food supply, a rotary food pump connected to the food supply, a molding mechanism having a mold plate and a knockout drive, and a mold plate reciprocating between a fill and a discharge position. The knockout drive reciprocates a knockout plunger to discharge molded food products from the mold plate the mold plate being reciprocated between a cavity fill position and a cavity discharge position. The machine includes a manifold connected an outlet of the food pump and having an outlet passageway connected to an inlet of the molding mechanism for filling the cavity of the mold plate. The machine can further include a fill plunger system for increasing the till pressure of the food mass prior to filling the mold cavities. Plungers extend into the manifold to displace food mass volume and increase the pressure in the manifold.
摘要:
The invention provides biosynthetic routes to xylitol production that do not require pure D-xylose for synthesis and that can utilize inexpensive substrates such as hemicellulose hydrolysates.
摘要:
Recombinant microorganisms are useful for producing xylitol by fermentation of arabinose. The recombinant microorganisms are produced by transformation of host microorganisms with heterologous polynucleotide sequences coding for each of L-xylulose reductase, D-tagatose 3-epimerase, and L-arabinose isomerase, which transformants express the heterologous polynucleotides at a sufficient functional level to be effective to produce xylitol from arabinose. Production of xylitol is effected by contacting these recombinant microorganisms with a substrate comprising arabinose under conditions effective to produce xylitol from arabinose.
摘要:
A device and method provide an aerosol germicide to a device having a lumen within a container. The container is divided into at least two compartments by an interface across which extends the lumen device, with one end of the lumen in one compartment and another end of the lumen in another compartment. A pressure differential can be used to flow the germicide through the lumen.