| 词条 | Nissan VQ engine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
|image=Nissan VQ35DE engine 001.jpg |name=Nissan VQ engine |manufacturer=Nissan (Nissan Machinery) |production=1994–present |configuration=60° V6 |displacement=2.0L 2.3L 2.5L 3.0L 3.5L 3.7L 4.0L |predecessor=Nissan VE engine Nissan VG engine V6 ESL engine |successor=Nissan VR engine |block=Aluminum |head=Aluminum |valvetrain=DOHC |similar=Chrysler SOHC V6 Ford Cyclone GM HFV6 Honda J-series Mazda K series Suzuki H series Toyota GR |caption=VQ35DE engine in a Nissan 350Z}} The VQ is a V6 piston engine produced by Nissan with displacements varying from 2.0 L to 4.0 L. It is an aluminum block DOHC 4-valve (per cylinder) design with aluminum heads. It is fitted with Nissan's EGI/ECCS sequential multi-point fuel injection (MPFI) system. Later versions feature various implementations of variable valve timing and replace MPFI with direct fuel injection (marketed as NEO-Di). The VQ series engine was honored by Ward's 10 Best Engines list almost every year from the list's inception. The VQ series replaced the VG series of engines. DE series{{Unreferenced section|date=November 2018}}VQ20DEThis DOHC 24-valve {{convert|1995|cc|L|1|abbr=on|order=flip}} V6 has bore and stroke dimensions of {{convert|76x73.3|mm|2|abbr=on}} respectively, along with a compression ratio ranging from 9.5 to 10.0:1. It produces {{convert|150|PS|kW hp|0|abbr=on}} to {{convert|160|PS|kW hp|0|abbr=on}} at 6400 rpm and {{convert|137|to|145|lbft|0|abbr=on}} at 4400 rpm (lean burn). It is fitted to the following vehicles:
VQ23DEThe VQ23DE is a {{convert|2349|cc|L|1|abbr=on|order=flip}} engine equipped with CVTC (Continuously Variable-valve Timing Control). Bore and stroke are {{convert|85x69|mm|2|abbr=on}}, with a compression ratio of 9.8:1. It produces {{convert|173|PS|kW hp|0|abbr=on}} at 6000 rpm and {{convert|166|lbft|0|abbr=on}} at 4400 rpm. It is fitted to the following vehicles:
VQ25DEThis engine is similar to the VQ20DE, but has a {{convert|2495|cc|L|1|abbr=on|order=flip}} displacement. Bore and stroke are {{convert|85x73.3|mm|2|abbr=on}}, with a compression ratio of 9.8 to 10.3:1. It produces {{convert|190|to|210|PS|kW hp|0|abbr=on}} at 6400 rpm and {{convert|174|to|195|lbft|0|abbr=on}} of torque. Later versions produce {{convert|186|PS|kW hp|0|abbr=on}} at 6000 rpm and {{convert|171|lbft|0|abbr=on}} at 3200 rpm. In some Nissan car, this engine replaced by QR25DE instead. {{hidden begin|title = It is fitted to the following vehicles: |titlestyle = background:#88FF88; text-align:left; |bodystyle = text-align:left; }}
VQ25DETThe VQ25DET is a turbocharged {{convert|2495|cc|L|1|abbr=on|order=flip}} engine with CVTC. Bore and stroke are {{convert|85x73.3|mm|2|abbr=on}}, with a compression ratio of 8.5:1. It produces {{convert|280|PS|kW hp|0|abbr=on}} at 6400 rpm and {{convert|300|lbft|Nm|0|abbr=on}} at 3200 rpm. It is fitted to the following vehicles:
VQ30DE{{Unreferenced section|date=November 2018}}The {{convert|2987|cc|L|1|abbr=on|order=flip}} VQ30DE has a bore and stroke of {{convert|93x73.3|mm|2|abbr=on}} respectively with a compression ratio of 10.0:1. It produces {{convert|193|PS|kW hp|0|abbr=on}} to {{convert|227|PS|kW hp|0|abbr=on}} at 6400 rpm and {{convert|205|to|217|lbft|0|abbr=on}} at 4400 rpm. The VQ30DE was on the Ward's 10 Best Engines list from 1995 through 2001. It is an aluminum open deck block design with microfinished internals and a relatively light weight. An improved version of the VQ30DE is known by the designation VQ30DE-K. The K designation stands for the Japanese word kaizen which translates to "improvement". The engine was used in the 2000–2001 Nissan Maxima and adds a true dual-runner intake manifold for better high-end performance compared to some earlier Japanese and Middle-East market versions of this engine (2000-2001 Infiniti I30 models added an additional fenderwell intake, boosting power to {{Convert|227|PS|hp kW|0|abbr=on}}). The VQ30DEK produces {{convert|227|PS|kW hp|0|abbr=on}}. The 1995–1999 US spec VQ30DE was equipped with only a single runner intake manifold. {{hidden begin|title = It is fitted to the following vehicles: |titlestyle = background:#88FF88; text-align:left; |bodystyle = text-align:left; }}
VQ30DETThe {{convert|2987|cc|L|1|abbr=on|order=flip}} VQ30DET is a turbocharged version of the VQ30DE. Bore and stroke remain the same at {{convert|93x73.3|mm|2|abbr=on}} respectively, and it has a compression ratio of 9.0:1. It produces {{convert|270|PS|kW hp|0|abbr=on}} and {{convert|271|lbft|0|abbr=on}}. From 1998 onwards, it produces {{convert|280|PS|kW hp|0|abbr=on}} at 6000 rpm and {{convert|285|lbft|0|abbr=on}} at 3600 rpm. It is fitted to the following vehicles:
VQ30DETTThe twin-turbo VQ30DETT is an engine used only in Nissan's race cars, primarily in the Super GT (formerly the JGTC). First used on the Skyline GT-R race cars during the 2002 season, this engine subsequently powered the Fairlady Z race cars. Homologation rules allow them to use the VQ30DETT in lieu of the stock VQ35DE. Race output of this engine is estimated at around {{convert|480|PS|kW hp|0|abbr=on}}. The VQ30DETT was replaced in 2007 by the VK45DE for use in the Super GT Fairlady Z's and later in the GT-R. It was utilized in the following vehicles:
VQ35DEThe {{convert|3498|cc|L|1|abbr=on|order=flip}} VQ35DE is used in many modern Nissan vehicles. Bore and stroke are {{convert|95.5x81.4|mm|2|abbr=on}}. It uses a similar block design as the VQ30DE, but adds variable valve timing (CVTCS). It produces from {{convert|231|to|304|PS|kW hp|0|abbr=on}} of power and {{convert|246|to|274|lbft|0|abbr=on}} of torque depending on the application. The VQ35DE is built in Iwaki and Decherd, TN. It was on the Ward's 10 Best Engines list from 2002 through to 2007 and again in 2016. It features forged steel connecting rods, a microfinished one-piece forged crankshaft, and Nissan's nylon intake manifold technology. It has low-friction molybdenum-coated pistons and the intake is a high-flow tuned induction system. Since its inception Nissan has improved upon the VQ35DE with changes keeping it an efficient class leading V6 engine. A modified version of the VQ35DE, called the S1, is produced by Nismo (Nissan's motorsports and performance division) for the Fairlady Z S-Tune GT. It produces {{convert|300|PS|kW hp|0|abbr=on}} at 7,200 rpm, a higher rev-limit than that of the original VQ35DE. Independent tuners offer various packages utilizing forced induction and all motor tuning. {{Citation needed span|Power levels up to {{convert|420|hp|kW PS|0|abbr=on}} NA and 1,000+ hp via turbocharging have been proven possible.|date=November 2018}} {{hidden begin|title = The VQ35DE is fitted to the following vehicles: |titlestyle = background:#88FF88; text-align:left; |bodystyle = text-align:left; }}North American
VQ40DE{{Unreferenced section|date=November 2018}}The VQ40DE is a {{convert|3954|cc|L|1|abbr=on|order=flip}} longer stroke variant of the VQ35DE. Bore and stroke are {{convert|95.5|×|92|mm|2|abbr=on}}. Compression ratio is 9.5:1 Improvements include continuously variable valve timing, variable intake system, silent timing chain, hollow and lighter camshafts and friction reduction (microfinished surfaces, moly coated pistons). It is port fuel injected with platinum-tipped spark plugs. It produces {{Convert|261|to|275|hp|kW PS|0|abbr=on}} at 5600 rpm and {{convert|281|to|288|lbft|Nm|0|abbr=on}} at 4000 rpm. {{hidden begin|title = It is fitted to the following vehicles: |titlestyle = background:#88FF88; text-align:left; |bodystyle = text-align:left; }}
DD series{{Unreferenced section|date=November 2018}}The DD series is a variant of the DE series engines with direct fuel injection (NEO-Di) and eVTC (electronically controlled continuously variable valve timing). VQ25DDThe {{convert|2495|cc|L|1|abbr=on|order=flip}} engine has Bore and stroke of 85 mm and 73.3 mm respectively, with a compression ratio of 11 to 11.3:1. It produces {{convert|209.9|PS|kW hp||abbr=on}} to {{convert|215|PS|kW hp||abbr=on}} at 6400 rpm and {{convert|195|to|199|lb·ft|N.m|abbr=on}} at 4400 rpm. It is fitted to the following vehicles:
VQ30DDThe {{convert|2987|cc|L|1|abbr=on|order=flip}} engine has Bore and stroke of 93 mm and 73.3 mm, with a compression ratio of 11.0:1. It produces {{convert|231.54|PS|kW hp||abbr=on}} to {{convert|258.78|PS|kW hp||abbr=on}} at 6400 rpm and {{convert|217|to|239|lb·ft|N.m|abbr=on}} at 3600 rpm. It is fitted to the following vehicles:
VQ35DDA larger 3.5L with direct-injection is released for 2017 model year. It is fitted to the following vehicles:
HR seriesVQ25HRThe 2.5 L VQ25HR (for "High Revolution" or "High Response") is only offered on longitudinally-mounted engine vehicles which tend to be rear wheel drive or all-wheel drive. Bore and stroke are {{convert|85x73.3|mm|2|abbr=on}}, with a compression ratio of 10.3:1. It produces {{convert|221-228|PS|kW hp|0|abbr=on}} at 6,800 rpm and {{convert|194|lbft|0|abbr=on}} at 4,800 rpm. It has dual CVTC for both intake and exhaust, microfinished camshafts and a redline of 7,500 rpm. It is fitted to the following vehicles:
VQ35HRThe VQ35HR engine was first seen in the US with the introduction of the updated 2007 G35 Sedan model, which debuted in August 2006. Nissan updated the VQ line with the addition of the 3.5 L VQ35HR (for "High Revolution"). It produces {{convert|315|PS|kW hp|0|abbr=on}} (US market: {{convert|306|hp|kW PS|0|abbr=on}} using the revised SAE certified power benchmark) at 6,800 rpm and {{Convert|37|kgm|Nm lbft|0|abbr=on}} at 4,800 rpm, using a compression ratio of 10.6:1. As of 2009, the Infiniti EX35 produces {{Convert|297|hp|kW PS|0|abbr=on}} and the same torque presumably due to tighter regulations. It has NDIS (Nissan Direct Ignition System) and CVTC with hydraulic actuation on the intake cam and electromagnetic on the exhaust cam. Redline is 7,600 rpm. Reportedly over 80% of the internal components were redesigned or strengthened to handle an increased RPM range sporting a lofty 7,600 rpm redline. A new dual-path intake (two air cleaners, throttle bodies, etc.) lowers intake tract restriction by 18 percent and new equal-length exhaust manifolds lead into mufflers that are 25 percent more free-flowing for all around better airflow. The electrically actuated variable valve timing on the exhaust cams to broaden the torque curve is new over the "DE" engine. The new engine block retained the same bore and stroke, but the connecting rods were lengthened and the block deck was raised by 8.4 mm to reduce piston side-loads. This modification, along with the use of larger crank bearings with main bearing caps reinforced by a rigid ladder-type main cap girdle to allow the engine reliably rev to 7600 rpm. With an increase in compression ratio from 10.3:1 to 10.6:1 these changes add 6 more horsepower ({{convert|306|hp|0|abbr=on}} total + 3 hp ram air effect not measured by SAE testing = {{convert|309|hp|0|abbr=on}}). Peak torque is up 8 pound-feet from the older "DE" engine, {{convert|260|lbft|0|abbr=on}} vs {{convert|268|lbft|0|abbr=on}} and the torque curve is higher and flatter across most of the rpm range, and especially in the lower rpm range. The VQ35HR was utilized in rear-wheel-drive platforms while the VQ35DE continued to power Nissan's front-wheel-drive vehicles. In 2010, Nissan introduced a hybrid version of the VQ35HR, pairing the engine to a lithium-ion battery pack. {{hidden begin|title = The VQ35HR fitted to the following vehicles: |titlestyle = background:#88FF88; text-align:left; |bodystyle = text-align:left; }}
VQ38HRBy 2007, Nissan's ambition to increase the competitiveness of the Z33 chassis in Super Taikyu racing resulted in the development of a larger displacement engine based on the original VQ35HR Block. The end result was the VQ38HR powered Nismo Type 380RS-C which went on to dominate ST class 1 racing. The 3.8-liter racing engine in the 380RS-C develops maximum power of more than {{Convert|294|kW|hp PS|0|abbr=on}}, and maximum torque of {{Convert|421|Nm|lbft|0|abbr=on}}.[1] In order to use this new engine in Super GT GT500, limited numbers of the engine were reproduced in the street-legal Fairlady Z Nismo Type 380RS. The VQ38HR engine mounted in the 380RS is a detuned, street version of the racing engine used in the 380RS-C. The engine displacement remains the same, while the intake manifold and exhaust, air-fuel ratio, ignition timing, VTC and other specs have been optimized for street use. The engine produces maximum power of {{Convert|257|kW|hp PS|0|abbr=on}} at 7200 rpm, and maximum torque of {{Convert|397|Nm|lbft|0|abbr=on}} at 4800 rpm.[2] The VQ38HR fitted to the following vehicles:
ProductionThe VQ35HR and VQ25HR engines were built at Nissan's Iwaki Plant in Fukushima Prefecture.[3][4] VHR series{{Unreferenced section|date=November 2018}}The VHR series is a variation of the VQ-HR engine series with Nissan's VVEL (Variable Valve Event and Lift). VQ37VHRIt was the first production engine from Nissan using VVEL. It has a compression ratio of 11.0:1, with a displacement of {{Convert|3696|cc|L CID|1|abbr=on|order=flip}}, thanks to a bore X stroke of {{convert|95.5x86|mm|2|abbr=on}} and a redline of 7,500 rpm. It is rated at {{convert|332|bhp|PS kW|0|abbr=on}} at 7,000 rpm and {{cvt|270|lbft|0|abbr=on}} of torque at 5,200 rpm, and up to {{convert|350|bhp|PS kW|0|abbr=on}} at 7,400 rpm and {{cvt|276|lbft|0|abbr=on}} of torque at 5,200 rpm. Although the engine VQ37VHR gains only {{cvt|2|lbft|0|abbr=on}} and {{cvt|8|lbft|0|abbr=on}} in the Nissan 370Z Nismo, torque over the VQ35HR and this higher torque arrives at 5,200 rpm vs 4,800 rpm in the VQ35HR, the torque curve itself is improved and flattened via VVEL variable valve timing for better throttle response and low rpm torque. {{hidden begin|title = It is fitted into the following vehicles: |titlestyle = background:#88FF88; text-align:left; |bodystyle = text-align:left; }}
See also
References1. ^http://www.nismo.co.jp/en/products/complete/380RS/2007/380rsc_spec.html 2. ^http://www.nismo.co.jp/en/products/complete/380RS/engine.html 3. ^NISSAN DEVELOPS NEW-GENERATION V6 ENGINES --Engines to power all-new Skyline to be released this autumn-- {{webarchive|url=https://web.archive.org/web/20100118092734/http://www.nissan-global.com/EN/NEWS/2006/_STORY/060822-01-e.html |date=2010-01-18 }} 4. ^日産自動車、新世代V型6気筒エンジンを新開発、今秋発売の新型スカイラインに搭載 {{webarchive|url=https://web.archive.org/web/20110322042439/http://www.nissan-global.com/JP/NEWS/2006/_STORY/060822-01-j.html |date=2011-03-22 }}
2 : Nissan engines|V6 engines |
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