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101 уплотняемость
compactibility, compression rate, compression ratioРусско-английский исловарь по машиностроению и автоматизации производства > уплотняемость
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102 степень сжатия
intensity of compression, compression ratioРусско-английский словарь по строительству и новым строительным технологиям > степень сжатия
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103 Kompressionsfaktor
Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Kompressionsfaktor
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104 tiedontiivistysaste
automatic data processing• compression ratioautomatic data processing• data-compression rate -
105 Priestman, William Dent
SUBJECT AREA: Steam and internal combustion engines[br]b. 23 August 1847 Sutton, Hull, Englandd. 7 September 1936 Hull, England[br]English oil engine pioneer.[br]William was the second son and one of eleven children of Samuel Priestman, who had moved to Hull after retiring as a corn miller in Kirkstall, Leeds, and who in retirement had become a director of the North Eastern Railway Company. The family were strict Quakers, so William was sent to the Quaker School in Bootham, York. He left school at the age of 17 to start an engineering apprenticeship at the Humber Iron Works, but this company failed so the apprenticeship was continued with the North Eastern Railway, Gateshead. In 1869 he joined the hydraulics department of Sir William Armstrong \& Company, Newcastle upon Tyne, but after a year there his father financed him in business at a small, run down works, the Holderness Foundry, Hull. He was soon joined by his brother, Samuel, their main business being the manufacture of dredging equipment (grabs), cranes and winches. In the late 1870s William became interested in internal combustion engines. He took a sublicence to manufacture petrol engines to the patents of Eugène Etève of Paris from the British licensees, Moll and Dando. These engines operated in a similar manner to the non-compression gas engines of Lenoir. Failure to make the two-stroke version of this engine work satisfactorily forced him to pay royalties to Crossley Bros, the British licensees of the Otto four-stroke patents.Fear of the dangers of petrol as a fuel, reflected by the associated very high insurance premiums, led William to experiment with the use of lamp oil as an engine fuel. His first of many patents was for a vaporizer. This was in 1885, well before Ackroyd Stuart. What distinguished the Priestman engine was the provision of an air pump which pressurized the fuel tank, outlets at the top and bottom of which led to a fuel atomizer injecting continuously into a vaporizing chamber heated by the exhaust gases. A spring-loaded inlet valve connected the chamber to the atmosphere, with the inlet valve proper between the chamber and the working cylinder being camoperated. A plug valve in the fuel line and a butterfly valve at the inlet to the chamber were operated, via a linkage, by the speed governor; this is believed to be the first use of this method of control. It was found that vaporization was only partly achieved, the higher fractions of the fuel condensing on the cylinder walls. A virtue was made of this as it provided vital lubrication. A starting system had to be provided, this comprising a lamp for preheating the vaporizing chamber and a hand pump for pressurizing the fuel tank.Engines of 2–10 hp (1.5–7.5 kW) were exhibited to the press in 1886; of these, a vertical engine was installed in a tram car and one of the horizontals in a motor dray. In 1888, engines were shown publicly at the Royal Agricultural Show, while in 1890 two-cylinder vertical marine engines were introduced in sizes from 2 to 10 hp (1.5–7.5 kW), and later double-acting ones up to some 60 hp (45 kW). First, clutch and gearbox reversing was used, but reversing propellers were fitted later (Priestman patent of 1892). In the same year a factory was established in Philadelphia, USA, where engines in the range 5–20 hp (3.7–15 kW) were made. Construction was radically different from that of the previous ones, the bosses of the twin flywheels acting as crank discs with the main bearings on the outside.On independent test in 1892, a Priestman engine achieved a full-load brake thermal efficiency of some 14 per cent, a very creditable figure for a compression ratio limited to under 3:1 by detonation problems. However, efficiency at low loads fell off seriously owing to the throttle governing, and the engines were heavy, complex and expensive compared with the competition.Decline in sales of dredging equipment and bad debts forced the firm into insolvency in 1895 and receivers took over. A new company was formed, the brothers being excluded. However, they were able to attend board meetings, but to exert no influence. Engine activities ceased in about 1904 after over 1,000 engines had been made. It is probable that the Quaker ethics of the brothers were out of place in a business that was becoming increasingly cut-throat. William spent the rest of his long life serving others.[br]Further ReadingC.Lyle Cummins, 1976, Internal Fire, Carnot Press.C.Lyle Cummins and J.D.Priestman, 1985, "William Dent Priestman, oil engine pioneer and inventor: his engine patents 1885–1901", Proceedings of the Institution ofMechanical Engineers 199:133.Anthony Harcombe, 1977, "Priestman's oil engine", Stationary Engine Magazine 42 (August).JBBiographical history of technology > Priestman, William Dent
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106 перепад давлений
1) Engineering: change of pressure, drop of pressure, pressure differential, pressure drop, pressure fall2) Construction: delta-p3) Automobile industry: pressure difference4) Astronautics: compression ratio, differential pressure, pressure ratio5) Metrology: head, head difference6) Sakhalin energy glossary: (отрицательный) an underbalance of, an underbalanced condition, the amount of underbalance, underbalance -
107 степень повышения давления
1) Oil: pressure ratio2) Combustion gas turbines: compression ratioУниверсальный русско-английский словарь > степень повышения давления
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108 Vorverdichtungsverhältnis
n <kfz.mot> ■ primary compression ratio; crankcase precompression ratioGerman-english technical dictionary > Vorverdichtungsverhältnis
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109 Verdichtungsverhältnis
Deutsch-Englisch Wörterbuch Engineering > Verdichtungsverhältnis
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110 степен
1. прил. steppe (attr.)2. същ. (стадий) stage (и тех.)3. (служебна) rank(на орден) class(на съд) instance(на роднинство) degree(научна) degreeприсъждам научна степен на confer a degree on4. грам. degreeстепени на сравнение degrees of comparisonположителна/сравнителна/превъзходна степен a positive/comparative/superlative degree5. мат. power(степенен показател) exponentповдигам на втора/трета степен raise to the second/third powerдо известна степен to a certain extent/degree; to some extent, in a/some measurewithin limitsдо последна степен to the last degree/extentв най-висша степен in the utmost degree; in the extremeв не малка степен to a not inconsiderable degree, to no inconsiderable degree* * *стѐпен,прил., -на, -но, -ни steppe (attr.).——————ж., -и 1. ( стадий) stage (и техн.), техн. ratio; \степен на платежоспособност margin of solvency; \степен на свиването compression ratio; \степен на секретност security grading;2. ( служебна) rank; (на орден) class; (на съд) instance; (на роднинство) degree; ( научна) degree; присъждам научна \степен на confer a degree on;3. език. degree; положителна/сравнителна/превъзходна \степен positive/comparative/superlative degree; \степени на сравнение degrees of comparison;4. мат. power; ( степенен показател) exponent; на \степен n to the n-th degree; повдигам на втора/трета \степен raise to the second/third power; • в по-малка \степен to a lesser extent; до голяма \степен to a great extent, in a large/great measure; largely; до известна \степен to a certain extent/degree; to some extent, in a/some measure; within limits; до такава \степен, че to the extent of (с ger.); to the extent that, to such an extent that.* * *degree (и грам., и научна): степен of comparison - сравнителна степен, superlative степен - превъзходна степен, Bachelor's степен - бакалавърска степен, Master's степен - магистърска степен; stage (стадий); exponent (мат. степенен показател); extent: to some степен - до известна степен, to a great степен - до голяма степен; grade ; magnitude (магнитуд); rank (служебна); notch ; order (порядък); peg ; power (мат.): rise to third степен - повдигам на трета степен* * *1. (на орден) class 2. (на роднинство) degree 3. (на съд) instance 4. (научна) degree 5. (служебна) rank 6. (степенен показател) exponent 7. 1 прил. steppe (attr.) 8. 2 същ.(стадий) stage (и тех.) 9. within limits: до голяма СТЕПЕН to a great extent, in a large/great measure;largely 10. СТЕПЕНи на сравнение degrees of comparison 11. в най-висша СТЕПЕН in the utmost degree;in the extreme 12. в не малка СТЕПЕН to a not inconsiderable degree, to no inconsiderable degree 13. грам. degree 14. до СТЕПЕН на to the point of 15. до известна СТЕПЕН to a certain extent/degree;to some extent, in a/some measure 16. до последна СТЕПЕН to the last degree/extent 17. до такава СТЕПЕН to such a degree 18. мат. power 19. на n-та СТЕПЕН to the n-th degree 20. повдигам на втора/трета СТЕПЕН raise to the second/ third power 21. положителна/сравнителна/превъзходна СТЕПЕН a positive/comparative/superlative degree 22. присъждам научна СТЕПЕН на confer a degree on -
111 коэффициент сжатия
Русско-английский индекс к Англо-русскому толковому словарю терминов и сокращений по ВТ, Интернету и программированию > коэффициент сжатия
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112 высокий
аэропорт высокой плотности воздушного движенияhigh-density airportвспышка высокой интенсивностиhigh-intensity flashвысокая частота радиосвязиhigh frequencyвысокие широтыhigh latitudeдвигатель с высокой степенью двухконтурностиhigh bypass ratio engineдвигатель с высокой степенью сжатияhigh compression ratio engineзона высокой интенсивностиhard-core areaкомпрессор высокого давленияhigh-pressure compressorконфигурация при высокой подъемной силеhigh lift configurationконфигурация при высокой степени двухконтурностиhight-bypass configurationконфигурация при высоком сопротивленииhigh drag configurationкрайне высокая частота радиосвязиextremely high frequencyмаршрут высокой интенсивностиhigh-density routeнасос высокого давленияhigh pressure pumpогни ВПП высокой интенсивностиhigh intensity runway lightsполеты на высоких эшелонахhigh-level operationsротор высокого давленияhigh pressure rotorсеть с высокой пропускной способностьюhigh level networkсистема огней высокой интенсивностиhigh-intensity lighting system(на аэродроме) ступень высокого давленияhigh-pressure stageтопливная система высокого давленияhigh-pressure fuel systemтурбина высокого давленияhigh-pressure turbineтурбовентиляторный двигатель с высокой степенью двухконтурностиhigh-bypass fanjetусловия при высокой плотности воздушного движенияhigh density traffic environmentфильтр высокого давленияhigh pressure filterэлектропроводка высокого напряжения на воздушном суднеaircraft high tension wiring -
113 высоко
аэропорт высокой плотности воздушного движенияhigh-density airportвспышка высокой интенсивностиhigh-intensity flashвысокая частота радиосвязиhigh frequencyвысокие широтыhigh latitudeдвигатель с высокой степенью двухконтурностиhigh bypass ratio engineдвигатель с высокой степенью сжатияhigh compression ratio engineзона высокой интенсивностиhard-core areaкомпрессор высокого давленияhigh-pressure compressorконфигурация при высокой подъемной силеhigh lift configurationконфигурация при высокой степени двухконтурностиhight-bypass configurationконфигурация при высоком сопротивленииhigh drag configurationкрайне высокая частота радиосвязиextremely high frequencyмаршрут высокой интенсивностиhigh-density routeнасос высокого давленияhigh pressure pumpогни ВПП высокой интенсивностиhigh intensity runway lightsполеты на высоких эшелонахhigh-level operationsположение с высоко поднятой носовой частью фюзеляжаhigh nose-up attitudeротор высокого давленияhigh pressure rotorсеть с высокой пропускной способностьюhigh level networkсистема огней высокой интенсивностиhigh-intensity lighting system(на аэродроме) ступень высокого давленияhigh-pressure stageтопливная система высокого давленияhigh-pressure fuel systemтурбина высокого давленияhigh-pressure turbineтурбовентиляторный двигатель с высокой степенью двухконтурностиhigh-bypass fanjetусловия при высокой плотности воздушного движенияhigh density traffic environmentфильтр высокого давленияhigh pressure filterэлектропроводка высокого напряжения на воздушном суднеaircraft high tension wiring -
114 выше
аэропорт высокой плотности воздушного движенияhigh-density airportвспышка высокой интенсивностиhigh-intensity flashвысокая частота радиосвязиhigh frequencyвысокие широтыhigh latitudeвыше глиссадыabove the glide slopeдвигатель с высокой степенью двухконтурностиhigh bypass ratio engineдвигатель с высокой степенью сжатияhigh compression ratio engineзона высокой интенсивностиhard-core areaкомпрессор высокого давленияhigh-pressure compressorконфигурация при высокой подъемной силеhigh lift configurationконфигурация при высокой степени двухконтурностиhight-bypass configurationконфигурация при высоком сопротивленииhigh drag configurationкрайне высокая частота радиосвязиextremely high frequencyмаршрут высокой интенсивностиhigh-density routeнасос высокого давленияhigh pressure pumpогни ВПП высокой интенсивностиhigh intensity runway lightsполеты на высоких эшелонахhigh-level operationsротор высокого давленияhigh pressure rotorсветовой сигнал лети вышеfly-up lightсеть с высокой пропускной способностьюhigh level networkсистема огней высокой интенсивностиhigh-intensity lighting system(на аэродроме) ступень высокого давленияhigh-pressure stageтопливная система высокого давленияhigh-pressure fuel systemтурбина высокого давленияhigh-pressure turbineтурбовентиляторный двигатель с высокой степенью двухконтурностиhigh-bypass fanjetусловия при высокой плотности воздушного движенияhigh density traffic environmentфильтр высокого давленияhigh pressure filterэлектропроводка высокого напряжения на воздушном суднеaircraft high tension wiring -
115 денитрификация газовых отходов
денитрификация газовых отходов
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
denitrification of waste gas
Current methods for controlling NOx emissions in motor vehicles include retardation of spark timing, increasing the air/fuel ratio, injecting water into the cylinders, decreasing the compression ratio, and recirculating exhaust gas. For stationary sources, one abatement method is to use a lower NOx producing fuel or to modify the combustion process by injecting steam into the combustion chamber. (Source: PZ)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-английский словарь нормативно-технической терминологии > денитрификация газовых отходов
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116 компрессионная машина с низкой степенью сжатия
Coolers: low-compression ratio machineУниверсальный русско-английский словарь > компрессионная машина с низкой степенью сжатия
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117 коэффициент морфирования
Cinema: compression ratioУниверсальный русско-английский словарь > коэффициент морфирования
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118 коэффициент сжатия данных
Electronics: data-compression ratioУниверсальный русско-английский словарь > коэффициент сжатия данных
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119 коэффициент сжатия по числу бит
Electronics: bit compression ratioУниверсальный русско-английский словарь > коэффициент сжатия по числу бит
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120 коэффициент уменьшения проходной полной проводимости электронной лампы
Electronics: transadmittance compression ratioУниверсальный русско-английский словарь > коэффициент уменьшения проходной полной проводимости электронной лампы
См. также в других словарях:
compression ratio — n. in an internal combustion engine, the ratio of the largest volume to the smallest volume of a cylinder, measured before and after the compressing action of the piston … English World dictionary
Compression ratio — Compression ratio. См. Степень сжатия (в порошковой металлургии). (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) … Словарь металлургических терминов
Compression ratio — For compression ratio in data compression, see data compression ratio. The compression ratio of an internal combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its… … Wikipedia
compression ratio — Auto. the ratio of the cylinder volume enclosed by the piston at its outermost position to the volume enclosed by it at its innermost position. [1905 10] * * * Degree to which the fuel mixture in an internal combustion engine is compressed before … Universalium
compression ratio — [1] When the piston is at the bottom of its travel (BDC), the volume of cylinder is measured (suppose the volume is X). Then the piston is placed at the top of its travel (TDC) and the volume of the cylinder is measured (suppose this volume is Y) … Dictionary of automotive terms
compression ratio — suspaudimo laipsnis statusas T sritis Energetika apibrėžtis Cilindro didžiausio (stūmokliui esant apatiniame rimties taške) ir mažiausio (stūmokliui esant viršutiniame rimties taške) tūrių santykis. atitikmenys: angl. compression rate;… … Aiškinamasis šiluminės ir branduolinės technikos terminų žodynas
compression ratio — spūdos laipsnis statusas T sritis fizika atitikmenys: angl. compression ratio vok. Kompressionsgrad, m; Verdichtungsgrad, m; Verdichtungsverhältnis, n rus. степень сжатия, f pranc. degré de compression, m; rapport de compression, m; taux de… … Fizikos terminų žodynas
compression ratio — suslėgimo laipsnis statusas T sritis Standartizacija ir metrologija apibrėžtis Suslėgtųjų dujų ir aplinkos, iš kurios jos siurbiamos, slėgių dalmuo. atitikmenys: angl. compression ratio vok. Kompressionsgrad, m; Verdichtungsverhältnis, n rus.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
compression ratio — spūdos santykis statusas T sritis fizika atitikmenys: angl. compression ratio vok. Verdichtungsgrad, m; Verdichtungsverhältnis, n rus. степень сжатия, f; степень уплотнения, f pranc. taux de compression, m … Fizikos terminų žodynas
compression ratio — The ratio of the original size of data that is sent to the compressed size. For example, a 3:1 compression ratio means that the original data takes up 3 times the amount of space as the compressed data, and a modem would transfer the data 3 times … Dictionary of telecommunications
compression ratio — suslėgimo laipsnis statusas T sritis chemija apibrėžtis Suslėgtų dujų ir aplinkos, iš kurios jos siurbiamos, slėgių santykis. atitikmenys: angl. compression ratio rus. степень сжатия … Chemijos terminų aiškinamasis žodynas