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Compression Ratio - Dictionary

Compression Ratio

Part of Speech

Noun

Pronunciation

UK: /kəmˈprɛʃ(ə)n ˈreɪ.ʃi.əʊ/

US: /kəmˈprɛʃ(ə)n ˈreɪ.ʃi.oʊ/

Definitions

  • The ratio of the total volume of a combustion chamber in an internal combustion engine to the volume of the chamber when the piston is at its highest point.
  • In thermodynamics, a measure of the reduction in volume of a gas or fluid due to compression.

Usage Examples

  • The higher the compression ratio, the more efficiently the engine can convert fuel into power.
  • Modern sports cars use a high compression ratio to improve performance.

Etymology

Derived from "compression," meaning the act of pressing together, and "ratio," from Latin ratiō, meaning calculation or proportion.

Synonyms

  • Pressure ratio
  • Volume ratio
  • Engine efficiency ratio

Antonyms

  • Expansion ratio
  • Decompression ratio

Translations

Language Translation Pronunciation
SpanishRelación de compresión/re.laˈθjon de kom.pɾeˈsjon/
FrenchRapport de compression/ʁa.pɔʁ də kɔ̃.pʁɛ.sjɔ̃/
GermanVerdichtungsverhältnis/fɛɐ̯ˈdɪçtʊŋs.fɛɐ̯ˈhɛltnɪs/
Chinese (Mandarin)压缩比/yā suō bǐ/
Hindiसंपीड़न अनुपात/sampīḍan anupāt/
Arabicنسبة الضغط/nisbat aḍ-ḍagṭ/
RussianСтепень сжатия/ˈstʲepʲɪnʲ ʐˈatʲɪjə/
Japanese圧縮比/asshuku hi/
Korean압축비/apchukbi/
PortugueseTaxa de compressão/ˈtaʃɐ dʒi kõ.pʁɛˈsɐ̃w̃/
Bengaliসংকোচন অনুপাত/sankochon anupāt/
Teluguకుదింపు నిష్పత్తి/kudimpu niṣpatti/
Marathiसंपीडन प्रमाण/sampīḍan pramāṇ/
Tamilசுருக்கல் விகிதம்/surukkal vigitam/
Gujaratiસંકોચન ગુણોત્તર/sankochan guṇottar/
Malayalamചുരുങ്ങൽ അനുപാതം/churungaḷ anupātam/
Punjabiਸੰਕੋਚਨ ਅਨੁਪਾਤ/sankochan anupāt/
Kannadaಕುಗ್ಗಿಸುವ ಅನುಪಾತ/kuggisuva anupāta/
Odiaସଂକୋଚନ ଅନୁପାତ/saṅkōcana anupāta/
Urduکمپریشن تناسب/compression tanāsib/

Regional Pronunciation Variations

  • British English: /kəmˈprɛʃ(ə)n ˈreɪ.ʃi.əʊ/
  • American English: /kəmˈprɛʃ(ə)n ˈreɪ.ʃi.oʊ/
  • Australian English: /kəmˈprɛʃ(ə)n ˈreɪ.ʃi.əʊ/
  • Indian English: /kəmˈprɛʃ(ə)n ˈreɪ.ʃi.oʊ/

Historical Usage

The concept of compression ratio dates back to the early 20th century when engineers began refining internal combustion engines to improve efficiency.

Cultural Nuances

While a higher compression ratio can lead to better fuel efficiency, it also requires high-octane fuel to prevent engine knocking.

More Information

Compression ratio is a critical factor in engine design, influencing power output, fuel efficiency, and overall performance.

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