| 词条 | Toyota NZ engine |
| 释义 |
|name=NZ engine |manufacturer=Toyota |designer=Yasushi Nouno, Hiroshi Tada, Toshifumi Takaoka[1] |production=1NZ-FXE: from December 1997[2] 1NZ-FE: from July 1999[3] 2NZ-FE: from October 1999[4] |image=1NZ-FXP Engine TOYOTA JPN TAXI NTP10 01.jpg |configuration=Naturally aspirated Straight-4 |block=Aluminum |head=Aluminum |fueltype=Petrol |coolingsystem=Water-cooled |power={{convert|74-109|hp|kW PS|0|abbr=on}} |torque={{convert|111-141|Nm|lbft|0|abbr=on}} }} The Toyota NZ engine family is a straight-4 piston engine series. The 1NZ series uses aluminum engine blocks and DOHC cylinder heads. It also uses sequential fuel injection, and has 4 valves per cylinder with VVT-i. The engines are produced by Toyota's Kamigo Plant in Toyota, Aichi, Japan (1NZ for Prius, NZ for Vitz and ist, and R1NZ for Sienta);[3] by Siam Toyota Manufacturing in Chonburi, Thailand (NZ for NBC cars such as the 1NZ-FE for the Yaris and Vios);[5][6] and by Indus Motor Company in Karachi, Pakistan (2NZ for Corolla).[5] 1NZ-FXE{{see also|brake specific fuel consumption}}The 1NZ-FXE is a hybrid {{convert|1497|cc|L|1|abbr=on|disp=flip}} version. Bore and stroke is {{convert|75x84.7|mm|in|2|abbr=on}}. It features forged steel connecting rods and an aluminum intake manifold. The engine has a high physical compression ratio of 13.0:1, but the closing of the inlet valve is delayed, for an effective compression ratio of 9.5:1[7]. The net result is that the engine has a greater effective expansion than compression—making it a simulated Atkinson cycle, rather than a conventional Otto cycle. The reduction in cylinder charge means reduced torque and power output, but efficiency is increased. This combination makes the 1NZ-FXE suitable for use with the Hybrid Synergy Drive, where peak torque and power demands can be met by the electric motor and battery. Output is {{convert|76|hp|kW PS|0|abbr=on}} at 5000 rpm with {{convert|115|Nm|lbft|0|abbr=on}} of torque at 4000 rpm. Thermal efficiency is about 37%.[8] Production was discontinued in 2009, with the arrival of the Prius Gen 3, which replaced the 1NZ-FXE with the 2ZR-FXE. In 2012, upon the arrival of the Prius c (North America), the Prius Aqua (Japan), and the Yaris Hybrid (Europe), an improved version was introduced. Without any belt-driven accessories, and a physical compression ratio of 13.4:1, the new version delivers an output of {{convert|74|hp|kW PS|0|abbr=on}} at 4800 rpm with {{convert|111|Nm|lbft|0|abbr=on}} of torque at 3600–4400 rpm. The 1NZ-FXE Hybrid Synergy Drive in the Toyota Prius has won several International Engine of the Year awards:
Applications:
1NZ-FEThe 1NZ-FE is a {{convert|1497|cc|L|1|abbr=on|disp=flip}} conventional Otto-cycle variant of the 1NZ-FXE with VVT-i. The engine block is found in many Toyota models assembled in Japan and Asian countries. It retains the same bore and stroke, but the compression ratio is lowered to 10.5:1. Output is {{convert|109|hp|kW PS|0|abbr=on}} at 6000 rpm with {{convert|141|Nm|lbft|0|abbr=on}} of torque at 4200 rpm. The redline is 6400 rpm. Applications:
{{anchor|2NZ|2NZ-FE}} 2NZ-FEThe 2NZ-FE is a {{convert|1298|cc|L|1|abbr=on|disp=flip}} version. Bore and stroke is {{convert|75x73.5|mm|2|abbr=on}}, with a compression ratio of 10.5:1. Output is {{cvt|63|kW|hp PS|0}} at 6000 rpm with {{cvt|121|Nm|lbft|0}} of torque at 4400 rpm. In 2000, it won the International Engine of the Year award in the 1-litre to 1.4-litre category.[10] Applications:
See also
References1. ^{{cite book |last=Itazaki |first=Hideshi |date=1999 |title=The Prius That Shook The World |location=Tokyo |publisher=Nikkan Kogyo Shimbun |page=147, 150, 160 |isbn=4-526-04376-1}} 2. ^{{cite web |url=https://www.toyota-global.com/company/history_of_toyota/75years/data/automotive_business/products_technology/technology_development/engines/index.html |title=Technical Development: Engines |archiveurl=https://web.archive.org/web/20130101113658/https://www.toyota-global.com/company/history_of_toyota/75years/data/automotive_business/products_technology/technology_development/engines/index.html |archivedate=January 1, 2001 |publisher=Toyota Motor Corporation}} 3. ^1 {{cite web |url=https://www.toyota-global.com/company/history_of_toyota/75years/data/automotive_business/production/production/japan/general_status/kamigo.html |title=General Status of Plants in Japan: Kamigo Plant |archiveurl=https://web.archive.org/web/20130802095944/https://www.toyota-global.com/company/history_of_toyota/75years/data/automotive_business/production/production/japan/general_status/kamigo.html |archivedate=August 2, 2013 |publisher=Toyota Motor Corporation |deadurl=no}} 4. ^{{cite web |url=https://media.toyota.co.uk/1999/08/toyota-yaris-family-grows-with-new-1-3-litre-versions/ |title=Toyota Yaris Family Grows With New 1.3-Litre Versions |date=August 2, 1999 |archiveurl=https://web.archive.org/web/20151022024618/https://media.toyota.co.uk/1999/08/toyota-yaris-family-grows-with-new-1-3-litre-versions/ |archivedate=October 22, 2015 |publisher=Toyota (GB)}} 5. ^1 {{cite web |url=https://www.toyota-global.com/company/history_of_toyota/75years/data/automotive_business/production/production/overseas/overview/asia.html |title=Overview of Overseas Production Affiliates: Asia |archiveurl=https://web.archive.org/web/20121206012223/https://www.toyota-global.com/company/history_of_toyota/75years/data/automotive_business/production/production/overseas/overview/asia.html |archivedate=December 6, 2012 |publisher=Toyota Motor Corporation |deadurl=no}} 6. ^{{cite web |url=http://www.siamtoyota.co.th/about.aspx#product |title=About STM |archiveurl=https://web.archive.org/web/20140219213006/http://www.siamtoyota.co.th/about.aspx#product |archivedate=February 19, 2014 |deadurl=no |publisher=Siam Toyota Manufacturing}} 7. ^{{Cite web|url=http://media.caranddriver.com/files/toyota-prius2004-toyota-prius-specs.pdf|title=Car and Driver 2004 Toyota Prius Specs|last=|first=|date=|website=|archive-url=|archive-date=|dead-url=|access-date=}} 8. ^{{cite web |url=http://www.greencarcongress.com/2011/04/nakata-20110411.html |title=Toyota targeting thermal efficiency of more than 45% for next-generation gasoline engines for hybrids |work=Green Car Congress |accessdate=3 May 2015}} 9. ^1 {{cite web |url=http://www.ukipme.com/engineoftheyear/archive.php |title=Archive {{!}} International Engine of the Year |work=Engine Technology International magazine |accessdate=10 February 2015}} 10. ^{{cite web |url=http://www.testing-expo.com:80/engineoftheyear/2000/cat5.html |title=1-litre to 1.4-litre: Toyota 1.3-litre VVTi |archiveurl=https://web.archive.org/web/20010719224315/http://www.testing-expo.com:80/engineoftheyear/2000/cat5.html |archivedate=July 19, 2001 |work=Engine Technology International |publisher=UK & International Press |deadurl=yes}} External links{{commons category|Toyota NZ engines}}
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