Variable valve timing

en

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Variable valve timing

Quality:

Variable valve timing - process of altering the timing of a valve lift event. Article “Variable valve timing” in English Wikipedia has 51.9 points for quality (as of July 1, 2026). The article contains 39 references and 29 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 5.77 points.

This article has the best quality in Estonian Wikipedia. However, this article is the most popular in English version.

Since the creation of article “Variable valve timing”, its content was written by 236 registered users of English Wikipedia and edited by 602 registered Wikipedia users in all languages.

The article is cited 433 times in English Wikipedia and cited 2139 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #11955 in June 2018
  • Global: #21513 in November 2004

The highest popularity rank from 2008:

  • Local (English): #36488 in March 2008
  • Global: #37764 in April 2013

There are 20 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, 2026 (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
1Estonian (et)
Muutuv gaasijaotusfaas
66.2976
2English (en)
Variable valve timing
51.9286
3German (de)
Nockenwellenverstellung
42.2505
4Dutch (nl)
Variabele kleptiming
28.5239
5Japanese (ja)
可変バルブ機構
23.13
6French (fr)
Distribution variable
19.375
7Italian (it)
Fasatura di distribuzione
18.1981
8Ukrainian (uk)
Зміна фаз газорозподілу
15.8133
9Spanish (es)
Distribución de válvulas variable
13.9667
10Chinese (zh)
可变气门正时
12.6624
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 "Variable valve timing" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Variable valve timing
3 769 007
2German (de)
Nockenwellenverstellung
1 127 340
3Japanese (ja)
可変バルブ機構
1 103 416
4Spanish (es)
Distribución de válvulas variable
472 476
5Italian (it)
Fasatura di distribuzione
291 085
6Chinese (zh)
可变气门正时
177 892
7French (fr)
Distribution variable
170 706
8Polish (pl)
Variable Valve Timing
88 037
9Korean (ko)
가변 밸브 타이밍
62 527
10Czech (cs)
Proměnné časování ventilů
53 291
More...

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

Most popular in June 2026

The most popular language versions of the article "Variable valve timing" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Variable valve timing
5 919
2Japanese (ja)
可変バルブ機構
2 170
3German (de)
Nockenwellenverstellung
1 376
4French (fr)
Distribution variable
458
5Chinese (zh)
可变气门正时
375
6Italian (it)
Fasatura di distribuzione
245
7Polish (pl)
Variable Valve Timing
210
8Persian (fa)
زمان‌بندی متغیر سوپاپ‌ها
176
9Spanish (es)
Distribución de válvulas variable
173
10Czech (cs)
Proměnné časování ventilů
96
More...

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

The highest AI

Language versions of the article "Variable valve timing" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Variable valve timing
236
2German (de)
Nockenwellenverstellung
134
3Japanese (ja)
可変バルブ機構
46
4French (fr)
Distribution variable
45
5Italian (it)
Fasatura di distribuzione
22
6Spanish (es)
Distribución de válvulas variable
20
7Chinese (zh)
可变气门正时
18
8Polish (pl)
Variable Valve Timing
14
9Czech (cs)
Proměnné časování ventilů
12
10Estonian (et)
Muutuv gaasijaotusfaas
9
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 2026

Language versions of the article "Variable valve timing" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Polish (pl)
Variable Valve Timing
1
2Catalan (ca)
Distribució de vàlvules variable
0
3Czech (cs)
Proměnné časování ventilů
0
4German (de)
Nockenwellenverstellung
0
5English (en)
Variable valve timing
0
6Spanish (es)
Distribución de válvulas variable
0
7Estonian (et)
Muutuv gaasijaotusfaas
0
8Persian (fa)
زمان‌بندی متغیر سوپاپ‌ها
0
9French (fr)
Distribution variable
0
10Indonesian (id)
Waktu katup variabel
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 "Variable valve timing" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Variable valve timing
433
2Japanese (ja)
可変バルブ機構
427
3French (fr)
Distribution variable
283
4German (de)
Nockenwellenverstellung
202
5Spanish (es)
Distribución de válvulas variable
151
6Korean (ko)
가변 밸브 타이밍
147
7Catalan (ca)
Distribució de vàlvules variable
112
8Chinese (zh)
可变气门正时
112
9Persian (fa)
زمان‌بندی متغیر سوپاپ‌ها
61
10Italian (it)
Fasatura di distribuzione
56
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
caCatalan
Distribució de vàlvules variable
csCzech
Proměnné časování ventilů
deGerman
Nockenwellenverstellung
enEnglish
Variable valve timing
esSpanish
Distribución de válvulas variable
etEstonian
Muutuv gaasijaotusfaas
faPersian
زمان‌بندی متغیر سوپاپ‌ها
frFrench
Distribution variable
idIndonesian
Waktu katup variabel
itItalian
Fasatura di distribuzione
jaJapanese
可変バルブ機構
koKorean
가변 밸브 타이밍
msMalay
Pemasaan injap boleh laras
nlDutch
Variabele kleptiming
noNorwegian
Variable ventiltider
plPolish
Variable Valve Timing
ptPortuguese
VVT
skSlovak
Variabilné časovanie ventilov
ukUkrainian
Зміна фаз газорозподілу
zhChinese
可变气门正时

Popularity rank trends

Best Rank English:
#36488
03.2008
Global:
#37764
04.2013

AI rank trends

Best Rank English:
#11955
06.2018
Global:
#21513
11.2004

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Variable valve timing from Wikipedia articles about VTEC, VVT-i, Overhead-camshaft valvetrain, Atkinson cycle and MIVEC. Whereas reading the article about Variable valve timing people most often go to Wikipedia articles on VTEC, VVT-i, Variable valve lift, Camless and Valvetronic.

Cumulative results of quality and popularity of the Wikipedia article

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

pt: VVT

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information