| 词条 | Toyota KR engine |
| 释义 |
|name=KR engine |manufacturer=Daihatsu subsidiary of Toyota |image=The engine room of Toyota ROOMY CUSTOM G-T 2WD (DBA-M900A-AGBVJ).jpg |configuration=Straight-3 |block=Aluminium |head=Aluminium |valvetrain=DOHC 4 valves x cyl. with VVT-i |fueltype=Gasoline |fuelsystem=Multi-point fuel injection |coolingsystem=Water-cooled |weight={{convert|69|kg|abbr=on|0}} |displacement={{convert|998|cc|L|1|abbr=on|disp=flip}} |bore={{convert|71|mm|abbr=on}} |stroke={{convert|84|mm|2|abbr=on}} |turbocharger=On 1KR-VET only |power={{convert|67-98|PS|kW bhp PS|abbr=on|0|order=out}} |torque={{convert|85-140|Nm|lbft|abbr=on|0}} }} The Toyota KR engine family is a straight-3 piston engine series, designed by Daihatsu, which is a subsidiary of Toyota. The 1KR series uses aluminium engine blocks and chain driven DOHC cylinder heads. It uses multi-point fuel injection, and has 4 valves per cylinder with VVT-i whilst some of the series do not have it. The engine is also exceptionally light with a {{convert|69|kg|abbr=on|0}} weight with all ancillaries. This is due to the nature of the applications and weight of city cars. 1KR-FEThe 1KR-FE is a {{convert|998|cc|L|1|abbr=on|disp=flip}} version built in Japan and Poland. Bore and stroke is {{convert|71x84|mm|2|abbr=on}}, with a compression ratio of 10.5:1. Output is {{convert|67|PS|kW+bhp|abbr=on|0}} at 6000 rpm with {{convert|91|Nm|lbft|abbr=on|0}} of torque at 4800 rpm - and a rev-limit of 6500 rpm - or {{convert|71|PS|kW+bhp|abbr=on|0}} at 6000 rpm with {{convert|94|Nm|lbft|0|abbr=on}} of torque at 3600 rpm. When originally on sale it met European emission standard EU4 requirements and had {{CO2}} levels of 109 g/km, but current applications meet European emission standard EU5 and can have {{CO2}} levels as low as 99 g/km.[1] This engine has been given the 2007, 2008, 2009 and 2010[2] International Engine of the Year awards in the sub-1.0 liter category. The engine was also adapted to meet European emission standard EU6 and can have {{CO2}} levels as low as 88/89 g/km in Toyota Aygo or Citroen C1/Peugeot 108 since 2014 in NEDC. Applications:
1KR-DEThe 1KR-DE is the non-VVT-i variant of the 1KR engine. It produces less power and torque than 1KR-FE. Output is {{convert|65|PS|kW+bhp|abbr=on|0}} at 6000 rpm and {{convert|85|Nm|lbft|0|abbr=on}} of torque at 3600 rpm. Bore and stroke is {{convert|71x84|mm|2|abbr=on}}, while the engine displacement is {{convert|998|cc|L|1|order=flip|abbr=on}}.[3][4] The 1KR-DE was specially designed for the Indonesian LCGC (Low Cost Green Car) market to reduce cost. The engine cylinder head cover is made from plastic-resin instead of aluminium to save {{convert|10|kg|lb||abbr=on}} of weight. The exhaust manifold is integrated to the cylinder head together with the catalytic converter and oxygen sensor to save even more weight.[5] Applications:
1KR-DE2The 1KR-DE2 is the more powerful variant of the 1KR-DE engine which is redesigned by Perodua. It produces {{convert|66|PS|kW+bhp|abbr=on|0}} at 6000 rpm and {{convert|90|Nm|lbft|0|abbr=on}} of torque at 3600 rpm. Like the 1KR-DE, bore and stroke are at {{convert|71x84|mm|2|abbr=on}}, respectively and engine displacement remains at {{convert|998|cc|L|1|order=flip|abbr=on}}[7][8] The 1KR-DE2 achieves Euro IV emission standard and it is very fuel efficient due to the ECO Mode, where the engine will exchange drop one cylinder for every two cycles, effectively achieving the economy of a {{convert|600|cc|L|1|order=flip|abbr=on}} engine, surpasses the 1KR-DE. The compression ratio for this engine is 11:1.[9] Application:
1KR-VEThe 1KR-VE is a more powerful variant made by Perodua specifically improved version from the 1KR-DE2 which is made for the newest edition in the Perodua family. New 1.0l VVT-i engine is lighter & compact for better fuel consumption, better performance, reduced vibration & noise level. It was specifically made for the 1.0L variant for Perodua's first solely in-house manufactured car which is the Perodua Bezza. It is a modified and refined version of the 1KR-DE2 engine from the Perodua Axia. The new 1KR-VE engine produces {{convert|67|hp|kW+PS|abbr=on|0}} at 6,000 rpm and {{convert|91|Nm|lbft|abbr=on|0}} at 4,400 rpm, offering a mild {{convert|1|hp||abbr=on}} and {{convert|1|Nm|lbft||abbr=on}} increase over the Axia's 1KR-DE2 plant. Perodua claims ECE fuel consumption figures of {{convert|22.8|km/L||abbr=on}} for the manual variant and {{convert|21.3|km/L||abbr=on}} with the automatic, both exhibiting a {{convert|1.2|km/L||abbr=on}} improvement over the old 1KR-DE2. The new 1KR-VE engine now features variable-valve timing with intelligence (VVT-i) on the intake valves. Several minor changes and refinements were also introduced for increased fuel efficiency and more linear power delivery. Notable changes include a higher 11.5:1 compression ratio, a high-tumble intake port, a longer intake manifold, micro fuel spray injection and low-friction valve lifters. Applications:
1KR-VETThe 1KR-VET is a turbocharged version of the 1KR-FE that is produced by Daihatsu for use in the top-of-the-range version of the Daihatsu Thor. It delivers {{convert|72|kW|PS hp|abbr=on}} and {{convert|140|Nm|lbft|0|abbr=on}}. Application:
See also{{commons category|Toyota KR engines}}
References1. ^{{cite web |url=https://leasing.com/green-cars/peugeot/108/ |title=PEUGEOT 108: green cars with CO2 emissions under 120g/km |work=TheGreenCarWebsite |accessdate=2014-02-12}} {{DEFAULTSORT:Toyota Kr Engine}}2. ^{{cite news |url=http://www.autoblog.com/photos/mercedes-benz-amg-v8#3112998 |title=International Engine of the Year Photo Gallery |first=Sam |last=Abuelsamid |work=Autoblog |date=2010-06-24 |accessdate=2014-02-12}} 3. ^{{cite web |url=http://www.toyota.astra.co.id/product/agya/ |title=Toyota Agya - Specifications |work=www.toyota.co.id |accessdate=2014-09-17}} 4. ^{{cite web |url=http://daihatsu.co.id/products/specification/ayla |title=Daihatsu Ayla - Specifications |work=www.daihatsu.co.id |accessdate=2014-09-17}} 5. ^{{cite web |url=http://www.otosia.com/berita/7-keunggulan-mesin-agya-ayla.html |title=7 Agya Engineering Excellence - Ayla |trans-title=7 Keunggulan Mesin Agya - Ayla |language=Indonesian |work=Otosia.com |date=2012-09-24 |accessdate=2014-03-04}} 6. ^{{cite web |url=http://daihatsu.co.id/product/hi-max |title=Astra Daihatsu Indonesia - Daihatsu Hi-Max specification |work=Astra Daihatsu Motor |accessdate=2016-11-11}} 7. ^{{cite web |url=http://paultan.org/2014/09/15/perodua-axia-launched/ |title=Perodua Axia Launched |last=Tan |first=Paul |work=paultan.org |date=2014-09-15 |accessdate=2014-09-17}} 8. ^{{cite web |url=http://www.perodua.com.my/ourcars/axia-advance/specifications |title=Perodua Axia Specifications |work=perodua.com.my |date=2014-09-15 |accessdate=2014-09-17}} 9. ^{{cite web |url=http://paultan.org/2014/09/15/perodua-axia-launched/perodua_axia_specs_-008/ |title=Perodua Axia Launched |last=Tan |first=Paul |work=paultan.org |date=2014-09-15 |accessdate=2014-09-17}} 2 : Toyota engines|Inline-three engines |
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