液冷發動機 的英文怎麼說
中文拼音 [yèlěngfādòngjī]
液冷發動機
英文
liquid-cooled engine-
Standard specification for engine coolant grade ethylene glycol
發動機冷卻液級乙烯甘醇標準規范Based on the analysis of the advantage and disadvantage of both overseas and domestic closed cold forging equipment, closed cold forging equipment consisting of a nc precise forging hydropress and a set of hydraulic drive female die has been developed, hence realization of the precision die forging of key parts for car, such as bevel gears
摘要在分析了國內外現有閉式冷精鍛裝備的優缺點的基礎上,開發研製了數控精鍛液壓機和液壓傳動凹模模具裝置,構成閉式冷精鍛設備,實現了圓錐齒輪等轎車關鍵零件的精密模鍛生產。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義Study on boiling heat transfer enhancement of forced liquid nitrogen flow in lunate narrow channel
低溫液體火箭發動機循環預冷模擬試驗Standard specification for ethylene glycol base engine coolant for automobile and light duty service
汽車及輕負荷發動機用乙二醇型發動機冷卻液In the future this may be represented by illumination of the coolant fluid level warning light and incorrect operation of the engine even so far as the engine failing to start
此後,這將導致發動機冷卻液液位報警燈點亮及發動機工作不正常,甚至導致發動機無法啟動。The cooling system for engine adopted hydraulic drive and control technology to control the speed of the fan : the chip adjust the control - current of the proportional value, which used in the engine cooling system, to control the speed of the fan. and the size of the control - current is according to the coolant temperature, coolant temperature change rate and target temperature. as for as the hydraulic cooling system we used a motor to drive and control the fan ’ s work or stop according to the temperature of the hydraulic oil
該系統的特點及其實現的功能為:電液混合驅動方式改變了工程機械冷卻裝置驅動方式單一的缺點,發動機冷卻系統採用了電液比例技術控制風扇轉速;單片機可以根據冷卻液溫度、冷卻液溫度變化率和目標冷卻液溫度調節液壓驅動系統中電液比例閥的控制電流,進而控制液壓油的流量,即可以實現冷卻風扇轉速的連續調節;液壓油冷卻系統採用了電動機驅動,然後由單片機根據液壓油的溫度控制電動機的起動和停止。Test method for density or relative density of engine coolant concentrates and engine coolants by the hydrometer
用液體比重計測量發動機冷卻劑及其濃縮物比重的方法Standard test method for density or relative density of engine coolant concentrates and engine coolants by the hydrometer
用液體比重計測量發動機冷卻劑及其濃縮物的濃度或相對濃度的標準試驗方法Comparing to the direct drain cool - down process used in china, the natural precooling cycle, which may save the propellant of the precooling, simplify the prestart program, delay the ignition of the rocket and be more safe in the process of precooling as well is employed in this paper
國外在該項領域的技術已經在實際火箭發射場得以應用,相比之下,我國仍採用排放式的預冷方法。因此,需要研究低溫液體火箭發動機循環預冷的方法,盡快實現趕超發達國家的目標。Automotive air conditioner accessories : automotive air conditioner cooler, evaporator, heat sink, air conditioner, temperature adjuster, heater, central cooler, air desiccators, cooling fan controller, internal heat exchanger, compressor, motor, air warmer, warm air device, electronic fan for cooling condenser, liquid can, thermal expansion valve, air condition pipeline, switch, clutch, connector, height valve, shunt valve and all kinds of automotive air conditioner production materials ( body aluminum, copper materials, etc ), production equipment, measurement equipment, etc
車用空調配件:各種車用空調冷凝器、蒸發器、散熱器、空調器、調溫器、加熱器、中冷器、空氣乾燥器、冷卻風扇控制器、內部熱交換器、壓縮機、電動機、暖風機、暖風裝置、各種冷凝器電子扇、貯液灌、熱力膨脹閥;各種車用空調管路、開關、離合器、接頭、高低閥、換向閥及各種車用空調生產材料(車用鋁材、銅材等) 、生產設備、檢測設備等。Test method for sampling and preparing aqueous solutions of engine coolants or antirusts for testing purposes
測試用發動機冷卻劑和除銹劑取樣和制備水溶液的方法This dissertation describes in detail about the operation principle of cooling system, the hardware circuit design and software design of the single chip control system. being different to the structure collation method of traditional cooling system, this system divided the whole system into two parts : cooling system for engine and cooling system for hydraulic oil system, and both of them are controlled by one singlechip
這種電液混合驅動冷卻方式可以使風扇離開發動機而靈活布置,克服了傳統驅動方式的各種弊端,減小了風扇的徑向間隙,提高了容積效率,降低了能耗,並有效解決了發動機和液壓傳動系統的過熱問題。論文對該系統的工作原理、硬體組成、軟體設計作了詳細論述。It can also be used as rust preventing additive for improving the corrosion prevention of soluble metal working fluids or cooling agent of engines
也可作為水溶性防銹添加劑添加到水溶性加工液或發動機冷卻液中以改善其防銹性能。The channel scale on transpiration cooling for the platelet thrust chamber of liquid propellant rocket engine is approaching micron dimension. it is very possible that micro - scale effects will occur in the flow and heat transfer of the channel. in the past, researchs on flow and heat transfer in the platelet micro - channel are mostly based on macro - scale theory
液體火箭發動機推力室壁面發汗冷卻通道的尺度已達微米量級,通道內的流動與換熱很可能存在微尺度效應,以前的相關研究都以宏觀尺度的理論為依據,其研究結果的合理性需要進行微尺度效應的分析。Note : henceforth, the gauge level of liquid of cooling is not assembled any more on vehicles 407 in series production
注意:今後,發動機冷卻液液位裝置在407車型中不再安裝。The pulse - tube refrigeration driven by the thermoacoustic prime has good application in natural gas liquefaction field
由熱聲發動機驅動的熱聲(包括脈管)製冷機,在天然氣液化方面有著巨大的商業應用前景。It can settle the over heat problem of engine and too much power consumption and hydraulic oil system which often happens in the construction machinery engineering construct process. the control system is composed by egine cooling system and hydraulic cooling system, which can control the two part at the same time. the cooling fan can be disposed at anywhere which conquer the abuse of tradional drive style and use low power. the electric and hydraulic mix - drive cooling system settle the over heat problem of engine and hydraulic oil system effectively
針對工程機械在施工過程中經常出現發動機過熱、液壓傳動系統液壓油冷卻不足和耗能大等問題,本文設計了一種新型的電液混合驅動冷卻裝置控制系統。本系統將原冷卻系統分成發動機冷卻系統和液壓傳動冷卻系統兩個相對獨立的部分,發動機冷卻系統利用液力驅動,液壓油冷卻系統利用電動機驅動,控制系統由一片單片機同時對兩個冷卻系統進行控制。The gas - phase inlet, the outlet of the reflux pipe is at above the liquid surface in the cryogenic tank, is presented
得出了循環預冷技術在低溫液體火箭發動機預冷程序中可以採用的結論。Standard practice for sampling and preparing aqueous solutions of engine coolants or antirusts for testing purposes
試驗用發動機冷卻劑或防銹劑水溶液的取樣和制備的標準方法分享友人