40results about How to "Lower fluid temperature" patented technology

A fastener shield for use in a fluid flow path within a gas turbine engine for reducing fluid drag and heating generated by fluid flow over a plurality of circumferentially spaced bolts. The fastener shield has a radially-extending, downstream-facing mounting flange with a plurality of circumferentially spaced bolt holes positioned to receive respective engine mounting bolts therethrough and to attach the mounting flange to elements of the turbine engine. A curved, upstream-facing fastener shield cover is positioned in spaced-apart relation to the mounting flange for at least partially covering and separating an exposed, upstream-facing portion of the bolts from the fluid flow to thereby reduce drag and consequent heating of the bolts. A plurality of closely spaced-apart, spirally-oriented channels are formed in the fastener shield cover for deflecting the fluid flow impinging on the fastener shield cover, thereby increasing the tangential velocity and lowering the relative temperature of the fluid flow.

An active thermal management system and method for selectively warming and cooling transmission fluid in a transmission usable with a vehicular engine is provided. The active thermal management system includes a thermal sensor which measures transmission fluid temperature and signals a valve to selectively communicate transmission fluid flow into one or more discrete fluid circuits.

A fluid ejection device for ejecting fluid includes an ejection tube including an opening to eject the fluid, a pulsation applying part which communicates with the ejection tube and applies pulsation to the fluid, a supply flow path to supply the fluid to the pulsation applying part, and a cooling part to cool the fluid in the supply flow path.

A water-cooling heat-dissipating module of an electronic apparatus includes a heat-conducting unit, a driving unit and a dissipating unit. The heat-conducting unit has a function of conducting a heat source. The dissipating unit has a function of dissipating the heat of a fluid. The driving unit has a function of driving the fluid. Via the driving unit, the fluid can be rapidly introduced into or drained out of each unit for circulation, thereby achieving the heat-dissipating effect.

A double acting dual stroke fluid pump with pressure assists is disclosed. First and second pistons are mounted to a common shaft which reciprocates within first and second cavities during compression and suction strokes. The second piston may have a one way valve which opens and closes during the compression and suction strokes to enable the fluid pump to force fluid out of the outlet during both the compression and suction strokes.

A shaft-seal device for high-temperature fluid including a seal case (2) formed as a metallic cylindrical structure of a single unit and comprised of a main body portion (2a, 2b, 2c), first and second holding portions (2d, 2e), first and second partition portions (2f, 2h), a channel formation portion (2g) forming a minute annular channel (27) with the outer circumference surface of a rotary shaft (1), and an o-ring holding portion (2i). The seal case is installed in an apparatus housing (8) with first and second o-rings (2m, 2n) in between. The intra-seal case region (A1), in which sealing rings (31, 32, 41, 42, 51, 52) of mechanical seals (3, 4, 5) are provided, and the high-temperature fluid region, which is an intra-apparatus housing region (A), are partitioned by a cooling chamber (28) into and from which coolant (82) is supplied and discharged via feed / discharge coolant paths (80, 81).

An oil pump driving control device of a vehicle having a main oil pump (14) that is driven by a motor / generator (4) and produces a pump discharge oil to a first clutch (3), a second clutch (5) and a belt-type continuously variable transmission (6) provided on a driving force transmission line. A hybrid control module (81) is provided in this FF hybrid vehicle. The hybrid control module (81) is configured to perform a control so that during vehicle stop, the lower an ATF oil temperature is, the more the pump driving energy to drive the main oil pump (14) is decreased. With this control, consumption energy during the vehicle stop can be reduced.

The invention discloses backward flow type air separation system and method based on the cold energy utilization of an LNG (Liquefied Natural Gas) satellite station. The invention adapts to the fluctuation of LNG dosage by adjusting the amount of cycled nitrogen, and complements the refrigerating output requirements required by the system simultaneously during the deficiency of the refrigerating output of the LNG by utilizing the method of flowing liquid nitrogen backwards. A nitrogen external circulation system is eliminated after the LNG cold energy is introduced in the air separation process, and the equipment of a nitrogen turbo-expander and a Freon refrigeration unit is omitted so that the process is simplified. The temperature of the circulation nitrogen at the outlet of a main heatexchanger is increased to 253 to 263 K from traditional 100 k around, and the problem of low temperature compression of the circulation nitrogen in the traditional system is avoided. The temperature of other flows of fluid of the main heat exchanger for cooling feeding air is reduced due to the increased temperature of the outlet of the circulation nitrogen, and the rest cold energy exchanges heat with the feeding air in front of a compressor and is exhausted after the temperature recovers to the room temperature, therefore, the temperature of the feeding air is further reduced to 273 to 280 K, and the energy consumption of the air compressor is saved.

A method and system of controlling the temperature of fluids produced from a reservoir to prevent overheating of an adjacent geological formation. A cooling fluid is supplied through an annulus formed between a production tubing and a production casing, which are in fluid communication with the reservoir. The cooling fluid is mixed with the reservoir fluid, and the fluids are produced through the production tubing. The temperature of the produced fluids is controlled or reduced by heat exchange with the cooling fluid supplied through the annulus to prevent excessive heat dissipation to the geological formation.

The present invention is a heavy oil recovery method integrating heat injection recovery and mechanical oil recovery. The specific steps are: S1, preparatory work; S2, running a combined heat injection string in the wellbore; S3, after running the heat injection string, Install the christmas tree, and after the christmas tree is installed, implement the heat injection process; S4, self-spray production, measure the temperature of the output fluid, and provide a basis for the subsequent selection of the temperature resistance level of the mechanical mining tool; S5, lower the mechanical mining tool; S6, Machine mining. In the present invention, the large-diameter wellbore and the heat injection string are lowered first, and then heat injection is performed; after the heat injection and self-spraying production are completed, no dynamic heat injection string is required, and the oil tree is not required to be dismantled, only the coiled tubing is needed to connect The mechanical mining tools are sent to the predetermined position in the heat injection pipe string for sealing, and then the mechanical mining can be realized, which solves the contradiction between the resistance of the mechanical mining tools and the high temperature of the thermal injection oil production under the existing technical conditions. Oil development provides an important technical means.

A method of controlling the gear shifting of an automatic range-change transmission, which is arranged between a drive engine and a final drive in a drive train of a motor vehicle and includes at least one multi-stage main transmission, a two-stage front-mounted group upstream of the main transmission, and a transmission brake. The main transmission can be shifted, via unsynchronized clutches, and the front-mounted group can be shifted, via synchronized clutches. Upon upshifting in the range-change transmission including at least one change of a transmission ratio stage of the front-mounted group, synchronization of the front-mounted group is effected via actuation of the synchronized clutch of the front-mounted group and supportingly via at least intermittently parallel actuation of the transmission brake. Actuation of the transmission brake, for supporting the synchronization of the front-mounted group, is effected on the basis of a prevailing driving or operating situation.

The invention discloses a condensation ejector which comprises an accepting chamber, a throat chamber, a mixing chamber, a dispersion chamber, a condensing chamber and an atomizing mechanism, wherein the accepting chamber is provided with a first inlet and a second inlet; one end of the throat chamber is communicated with the accepting chamber, and the throat chamber is located on the down stream of the second inlet; one end of the mixing chamber is communicated with the other end of the throat chamber, one end of the dispersion chamber is communicated with the other end of the mixing chamber, and a first outlet is formed in the other end of the dispersion chamber; the condensing chamber is arranged close to the outer side of the down stream of the mixing chamber in a surrounding mode and comprises a third inlet formed in the down stream end of the condensing chamber, a second outlet formed in the upstream of the condensing chamber, a plurality of main condensing pipes and a plurality of branch condensing pipes, one end of each of the condensing pipes extends into the mixing chamber, the extending directions of the branch condensing pipes are different, the other end of each of the branch condensing pipes is communicated with a main condensing pipe, one end of the main condensing pipe is sealed, and the other end of the main condensing pipe is communicated with the dispersion chamber through a fourth inlet in the dispersion chamber; the atomizing mechanism is provided with a plurality of nozzles formed in the position of the fourth inlet, and the atomizing mechanism is used for atomizing fluid in the main condensing pipe and spraying the fluid in the dispersion chamber.