Liefergrad

de

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Liefergrad

Quality:

Volumetric efficiency - ratio of the mass density of a mixture drawn into a cylinder at atmospheric pressure to the mass density of the same volume of air in the intake manifold. Article “Liefergrad” in German Wikipedia has 20 points for quality (as of July 1, 2025). The article contains 1 references and 11 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (German) language version.

Since the creation of article “Liefergrad”, its content was written by 39 registered users of German Wikipedia and edited by 146 registered Wikipedia users in all languages.

The article is cited 33 times in German Wikipedia and cited 264 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (German): #4581 in March 2019
  • Global: #63294 in July 2004

The highest popularity rank from 2008:

  • Local (German): #97836 in May 2008
  • Global: #169581 in April 2015

There are 9 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Volumetric efficiency
23.6476
2German (de)
Liefergrad
19.9764
3Italian (it)
Coefficiente di riempimento
14.8315
4Arabic (ar)
كفاءة حجمية
12.4906
5Chinese (zh)
容積效率
9.0314
6Japanese (ja)
体積効率
7.574
7Russian (ru)
Объёмный КПД двигателя внутреннего сгорания
3.9594
8Persian (fa)
بازده حجمی
2.9182
9Slovak (sk)
Objemová účinnosť
2.158
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Liefergrad" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Volumetric efficiency
953 576
2German (de)
Liefergrad
178 385
3Japanese (ja)
体積効率
120 861
4Russian (ru)
Объёмный КПД двигателя внутреннего сгорания
92 677
5Italian (it)
Coefficiente di riempimento
61 643
6Chinese (zh)
容積效率
38 310
7Arabic (ar)
كفاءة حجمية
10 671
8Persian (fa)
بازده حجمی
6 952
9Slovak (sk)
Objemová účinnosť
6 112
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Liefergrad" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Volumetric efficiency
1 687
2German (de)
Liefergrad
192
3Russian (ru)
Объёмный КПД двигателя внутреннего сгорания
190
4Japanese (ja)
体積効率
175
5Italian (it)
Coefficiente di riempimento
143
6Chinese (zh)
容積效率
73
7Slovak (sk)
Objemová účinnosť
23
8Arabic (ar)
كفاءة حجمية
12
9Persian (fa)
بازده حجمی
10
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Liefergrad" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Volumetric efficiency
51
2German (de)
Liefergrad
39
3Italian (it)
Coefficiente di riempimento
17
4Japanese (ja)
体積効率
9
5Russian (ru)
Объёмный КПД двигателя внутреннего сгорания
9
6Arabic (ar)
كفاءة حجمية
8
7Chinese (zh)
容積效率
7
8Persian (fa)
بازده حجمی
5
9Slovak (sk)
Objemová účinnosť
1
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Liefergrad" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
كفاءة حجمية
0
2German (de)
Liefergrad
0
3English (en)
Volumetric efficiency
0
4Persian (fa)
بازده حجمی
0
5Italian (it)
Coefficiente di riempimento
0
6Japanese (ja)
体積効率
0
7Russian (ru)
Объёмный КПД двигателя внутреннего сгорания
0
8Slovak (sk)
Objemová účinnosť
0
9Chinese (zh)
容積效率
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Liefergrad" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Volumetric efficiency
114
2Persian (fa)
بازده حجمی
40
3German (de)
Liefergrad
33
4Chinese (zh)
容積效率
21
5Japanese (ja)
体積効率
16
6Italian (it)
Coefficiente di riempimento
11
7Arabic (ar)
كفاءة حجمية
10
8Slovak (sk)
Objemová účinnosť
10
9Russian (ru)
Объёмный КПД двигателя внутреннего сгорания
9
More...

Scores

Estimated value for Wikipedia:
German:
Global:
Popularity in June 2025:
German:
Global:
Popularity in all years:
German:
Global:
Authors in June 2025:
German:
Global:
Registered authors in all years:
German:
Global:
Citations:
German:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
كفاءة حجمية
deGerman
Liefergrad
enEnglish
Volumetric efficiency
faPersian
بازده حجمی
itItalian
Coefficiente di riempimento
jaJapanese
体積効率
ruRussian
Объёмный КПД двигателя внутреннего сгорания
skSlovak
Objemová účinnosť
zhChinese
容積效率

Popularity rank trends

Best Rank German:
#97836
05.2008
Global:
#169581
04.2015

AI rank trends

Best Rank German:
#4581
03.2019
Global:
#63294
07.2004

Local AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Volumetric efficiency from Wikipedia articles about Throttle, Atkinson cycle, Naturally aspirated engine, Expansion chamber and Ceramic capacitor. Whereas reading the article about Volumetric efficiency people most often go to Wikipedia articles on Boyles law, Inertial supercharging effect, Resonance, Sleeve valve and Naturally aspirated engine.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 28 January 2026

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In German Wikipedia the most popular articles on that day were: Whitney Houston, Fall Gil Ofarim, Gil Ofarim, Handball-Europameisterschaft der Männer 2026, Der neue Freund, Tova Friedman, Sven Schulze (Politiker, 1979), Liste der größten Auslegerbrücken, Bobbi Kristina Brown, Patricia Aulitzky.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information