fbpx
Wikipedia

Circle L engine

January 06, 2023

The Circle L is an automobile engine produced by GM Powertrain Poland in Poland. It is a 1.7 L; 102.9 cu in (1,686 cc) inline-four 16-valve turbocharged diesel engine originally designed by Isuzu but now owned by General Motors. The engine is produced in Europe by General Motors for use in the Opel, Vauxhall and Chevrolet vehicles and by Honda for use in the Civic compact car.

Circle L engine
Overview
ManufacturerGM Powertrain Poland
Layout
ConfigurationInline-4
Displacement1.7 L; 102.9 cu in (1,686 cc)
Cylinder bore79 mm (3.11 in)
Piston stroke86 mm (3.39 in)
Head materialAluminium alloy
ValvetrainDOHC
Compression ratio16.5:1, 18.2:1, 18.4:1
Combustion
TurbochargerMitsubishi TD025 variable-geometry
Fuel systemCommon rail direct injection
ManagementDenso or Bosch
Fuel typeDiesel
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output65–130 PS (48–96 kW)
Torque output130–300 N⋅m (96–221 lb⋅ft)
Emissions
Emissions target standardEuro 3, 4 & 5
Emissions control technologyEGR
Chronology
SuccessorMDE engine

History

In the late nineties the Japanese company Isuzu, which was known for the efficiency of its diesel engines, collaborated with General Motors on a new diesel engine for the European market for Opel and Vauxhall. For this purpose it opened a new plant in the city of Tychy, in Poland, called Isuzu Motor Polska.

Characteristics

For reasons of economy, GM and Isuzu chose not to make an engine from scratch, but rather evolved the new engine from an existing base. Thus, the Isuzu 4EE1 1.7-liter was chosen and developed into the "Circle L" family of engines, also known as the 4EE2.

The engine kept the same dimensions of 1.7 4EE1. The main differences are in the DOHC camshafts and direct injection. The first engines mounted a simple direct injection and met the Euro 3 standard, while the later engines met Euro 4 and used common rail injection technology. The 1.7 Circle L common rail engines were the first common rail engines used in Opels.

60 percent of the components for the production of the engines at Isuzu Motor Polska come from Germany, as well as the aluminium alloy for the manufacture of the cylinder head. The Polish plant was responsible for the construction and the development of the valvetrain. The block, however, comes to Tychy already built by the Isuzu factory in Hokkaido, Japan.

These engines are particularly important for Opel since they are fitted to their best-selling models in a period in which diesel engines became extremely popular. Moreover, thanks to their great fuel economy and reduced emissions, Circle L engines were integrated into the family of Ecotec engines. Later Circle L engines became part of the Ecoflex family.

The 1.7-liter 4EE2 was offered in six variants, whose characteristics and applications are described below.

Y17DT

The abbreviation Y17DT identifies the very first Circle L engine: As already mentioned it is a Euro 3 engine with a compression ratio of 18.4:1. The unit has Denso engine management, as in most Circle L engines. A Mitsubishi TD025 turbocharger is fitted, as is an exhaust gas recirculation system. The Y17DT reaches 75 PS (55 kW; 74 hp) at 4400 rpm, with a torque of 165 N⋅m (122 lb⋅ft) between 1800 and 3000 rpm. This engine was fitted in:

  • Opel Corsa C 1.7 DTI 16V 75 HP (2000-03);
  • Opel Combo C 1.7 DTI 16V (2002-04);
  • Opel Astra G 1.7 DTI 16V (1999-2003);
  • Opel Meriva 1.7 16V DTI (2003-05);

Y17DTL

The engine Y17DTL is a reduced power variant of the Y17DT, to which it differs in the absence of an intercooler. Maximum power is reduced to 65 PS (48 kW; 64 hp) at 4400 rpm, and maximum torque to 130 N⋅m (96 lb⋅ft) between 2000 and 3000 rpm. This engine, also Euro 3, was fitted in:

  • Opel Corsa C 1.7 16V 65 HP (2000-03);
  • Opel Combo C 1.7 DI 16V (2002-04);

Z17DTL

The engine Z17DTL was one of the first common rail turbo-diesel engines used by Opel. With a turbocharger and a compression ratio of 18.4:1, it can reach the maximum power of 80 PS (59 kW; 79 hp) at 4400 rpm, with a maximum torque of 170 N⋅m (125 lb⋅ft) at 1800 rpm. It was fitted in:

  • Opel Astra G 1.7 16V CDTI (2003-04)
  • Opel Astra H 1.7 CDTI (2004- 05)

Z17DT

The engine Z17DT was one of the first common rail turbo diesel engines used by Opel. With a variable-geometry turbocharger and a compression ratio of 18.4:1, can reach the maximum power of 101 PS (74 kW; 100 hp) at 4400 rpm, with a maximum torque of 240 N⋅m (177 lb⋅ft) at 2300 rpm. It was fitted in:

  • Opel Corsa C 1.7 16V CDTI 101CV (2003-06);
  • Opel Meriva A 1.7 CDTi 16v 101CV (2003-05);

This engine meets the Euro 4 directive.

Z17DTH and A17DT

This motor is similar to the one signed Z17DT it replaces, and features a number of minor improvements. The power is unchanged at 101 PS (74 kW; 100 hp) at 4400 rpm, but the torque increases to 260 N⋅m (192 lb⋅ft) at 2300 rpm. It was fitted in

  • Opel Meriva A 1.7 CDTI A (2005-10),
  • Opel Astra H 1.7 CDTI (2004-08),
  • Opel Combo C 1.7 CDTI (2004-2010).
  • Opel Corsa C 1.7 CDTI (2003-06)

With the exception of the Opel Astra 1.7 CDTI 16V, this car had a Bosch engine management system, and the other four models are equipped with a Denso control unit. In more modern versions, introduced in 2010, this engine delivers 100 PS (74 kW; 99 hp) of maximum power at 4000 rpm, while maximum torque is always 260 N⋅m (192 lb⋅ft), but delivered between 1,700 and 2,550 rpm. In this configuration, this engine has been fitted to:

  • Opel Meriva B 1.7 CDTI (2010-13)

Z17DTR and A17DTR

These are more powerful variants (but not the most powerful) of the Circle L engines. They also meet the Euro 4 standard, but feature a slightly lower compression ratio of 18.2:1. As in all Euro 4 engine an exhaust gas recirculation system is present. The maximum power reaches 125 PS (92 kW; 123 hp) at 4000 rpm, with a peak torque of 280 N⋅m (207 lb⋅ft) between 2000 and 2700 rpm.

This engine was fitted in:

  • Opel Corsa D 1.7 CDTI 16V 125hp (2006-11);
  • Opel Corsa D GSi 1.7 CDTI ( 2007 -11);
  • Opel Meriva 1.7 CDTI 16V 125hp (2006-10);
  • Opel Astra 1.7 16V 5p CDTI 125hp (2007-09);
  • Opel Astra H SW 1.7 CDTI 16V 125hp (2007-10);
  • Opel Astra GTC 1.7 CDTI 16V 125hp (2007- 11 ).

The abbreviation A17DTR identifies the Euro 5 variant, which has otherwise identical features and is fitted in:

  • Opel Zafira B 1.7 CDTI 16V 125hp ( 2009 -14);
  • Opel Astra J 1.7 CDTI 125hp (2010-11).


A17DTS

In 2010 the engine A17DTR was developed into the A17DTS: here the engine power has been increased to 130 PS (96 kW; 128 hp) at 4000 rpm, while the maximum torque is increased to 300 N⋅m (221 lb⋅ft) between 2000 and 2500 rpm. This variant has been fitted in:

  • Opel Corsa D 1.7 CDTI (2011-13);
  • Opel Astra J 1.7 CDTI 130cv (2011-14);
  • Opel Meriva B 1.7 CDTI 130cv (2010-13);
  • Opel Mokka 1.7 CDTI ( 2012 -15);
  • Chevrolet Cruze 1.7 VCDi (2012-14);
  • Chevrolet Trax 1.7 D ( 2013 - 15 ).

Z17DTJ and A17DTJ

This engine was the basis for the 1.7 Ecoflex: Maximum power reaches 110 PS (81 kW; 108 hp) at 3800 rpm, with a maximum torque of 260 N⋅m (192 lb⋅ft) at 2000 rpm.

It is fitted in:

  • Opel Astra H 1.7 CDTI 16v 110 bhp (2007-09);
  • Opel Astra J 1.7 CDTI 16v 110 bhp (2010-15);
  • Opel Astra GTC H / SW 1.7 CDTI 16v 110 bhp (2007-10 );
  • Opel Zafira B 1.7 CDTi 16v 110HP (2007-08).

A17DTC and A17DTE

This is the second diesel engine in the Opel engine range to be included in the EcoFlex range (the first was a 1.3 Multijet engine from Fiat). Introduced in 2008, is based on the Z17DTJ engine developed simultaneously, and is characterized by a reduction of friction of the moving parts in order to optimize the thermal efficiency and meet the stricter Euro 5 standard. Outputs are identical to those of the Z17DTJ. It is fitted in:

  • Opel Meriva B 1.7 CDTi 16v 110HP (from 2010);
  • Opel Zafira B 1.7 CDTi 16v 110HP (2008-14);
  • Opel Astra J 1.7 CDTI 16v 110HP (2010-14).

Honda

The Honda version features common rail direct injection technology, while the Opel 4EE2 unit uses low-pressure DI. Honda's purchase of the Circle-L engines was reciprocated by GM's purchase of the J35A3 V6.

Applications:

4EE2

The 4EE2 produces 74 hp (55.2 kW) at 4400 rpm and 165 N⋅m (122 lb⋅ft) at 1800 rpm.

Applications:

See also

External links

  • Isuzu Builds 1,000,000th Circle-L
  • Mercruiser Brochure
  • Mercruiser Brochure
  • Mercruiser Brochure
  • Mercruiser/Isuzu Venture Article

January 06, 2023
circle, engine, this, article, includes, list, references, related, reading, external, links, sources, remain, unclear, because, lacks, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, april, 2019, learn, when, re. This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help to improve this article by introducing more precise citations April 2019 Learn how and when to remove this template message The Circle L is an automobile engine produced by GM Powertrain Poland in Poland It is a 1 7 L 102 9 cu in 1 686 cc inline four 16 valve turbocharged diesel engine originally designed by Isuzu but now owned by General Motors The engine is produced in Europe by General Motors for use in the Opel Vauxhall and Chevrolet vehicles and by Honda for use in the Civic compact car Circle L engineOverviewManufacturerGM Powertrain PolandLayoutConfigurationInline 4Displacement1 7 L 102 9 cu in 1 686 cc Cylinder bore79 mm 3 11 in Piston stroke86 mm 3 39 in Head materialAluminium alloyValvetrainDOHCCompression ratio16 5 1 18 2 1 18 4 1CombustionTurbochargerMitsubishi TD025 variable geometryFuel systemCommon rail direct injectionManagementDenso or BoschFuel typeDieselOil systemWet sumpCooling systemWater cooledOutputPower output65 130 PS 48 96 kW Torque output130 300 N m 96 221 lb ft EmissionsEmissions target standardEuro 3 4 amp 5Emissions control technologyEGRChronologySuccessorMDE engine Contents 1 History 2 Characteristics 2 1 Y17DT 2 2 Y17DTL 2 3 Z17DTL 2 4 Z17DT 2 5 Z17DTH and A17DT 2 6 Z17DTR and A17DTR 2 7 A17DTS 2 8 Z17DTJ and A17DTJ 2 9 A17DTC and A17DTE 3 Honda 4 4EE2 5 See also 6 External linksHistory EditIn the late nineties the Japanese company Isuzu which was known for the efficiency of its diesel engines collaborated with General Motors on a new diesel engine for the European market for Opel and Vauxhall For this purpose it opened a new plant in the city of Tychy in Poland called Isuzu Motor Polska Characteristics EditFor reasons of economy GM and Isuzu chose not to make an engine from scratch but rather evolved the new engine from an existing base Thus the Isuzu 4EE1 1 7 liter was chosen and developed into the Circle L family of engines also known as the 4EE2 The engine kept the same dimensions of 1 7 4EE1 The main differences are in the DOHC camshafts and direct injection The first engines mounted a simple direct injection and met the Euro 3 standard while the later engines met Euro 4 and used common rail injection technology The 1 7 Circle L common rail engines were the first common rail engines used in Opels 60 percent of the components for the production of the engines at Isuzu Motor Polska come from Germany as well as the aluminium alloy for the manufacture of the cylinder head The Polish plant was responsible for the construction and the development of the valvetrain The block however comes to Tychy already built by the Isuzu factory in Hokkaido Japan These engines are particularly important for Opel since they are fitted to their best selling models in a period in which diesel engines became extremely popular Moreover thanks to their great fuel economy and reduced emissions Circle L engines were integrated into the family of Ecotec engines Later Circle L engines became part of the Ecoflex family The 1 7 liter 4EE2 was offered in six variants whose characteristics and applications are described below Y17DT Edit The abbreviation Y17DT identifies the very first Circle L engine As already mentioned it is a Euro 3 engine with a compression ratio of 18 4 1 The unit has Denso engine management as in most Circle L engines A Mitsubishi TD025 turbocharger is fitted as is an exhaust gas recirculation system The Y17DT reaches 75 PS 55 kW 74 hp at 4400 rpm with a torque of 165 N m 122 lb ft between 1800 and 3000 rpm This engine was fitted in Opel Corsa C 1 7 DTI 16V 75 HP 2000 03 Opel Combo C 1 7 DTI 16V 2002 04 Opel Astra G 1 7 DTI 16V 1999 2003 Opel Meriva 1 7 16V DTI 2003 05 Y17DTL Edit The engine Y17DTL is a reduced power variant of the Y17DT to which it differs in the absence of an intercooler Maximum power is reduced to 65 PS 48 kW 64 hp at 4400 rpm and maximum torque to 130 N m 96 lb ft between 2000 and 3000 rpm This engine also Euro 3 was fitted in Opel Corsa C 1 7 16V 65 HP 2000 03 Opel Combo C 1 7 DI 16V 2002 04 Z17DTL Edit The engine Z17DTL was one of the first common rail turbo diesel engines used by Opel With a turbocharger and a compression ratio of 18 4 1 it can reach the maximum power of 80 PS 59 kW 79 hp at 4400 rpm with a maximum torque of 170 N m 125 lb ft at 1800 rpm It was fitted in Opel Astra G 1 7 16V CDTI 2003 04 Opel Astra H 1 7 CDTI 2004 05 Z17DT Edit The engine Z17DT was one of the first common rail turbo diesel engines used by Opel With a variable geometry turbocharger and a compression ratio of 18 4 1 can reach the maximum power of 101 PS 74 kW 100 hp at 4400 rpm with a maximum torque of 240 N m 177 lb ft at 2300 rpm It was fitted in Opel Corsa C 1 7 16V CDTI 101CV 2003 06 Opel Meriva A 1 7 CDTi 16v 101CV 2003 05 This engine meets the Euro 4 directive Z17DTH and A17DT Edit This motor is similar to the one signed Z17DT it replaces and features a number of minor improvements The power is unchanged at 101 PS 74 kW 100 hp at 4400 rpm but the torque increases to 260 N m 192 lb ft at 2300 rpm It was fitted in Opel Meriva A 1 7 CDTI A 2005 10 Opel Astra H 1 7 CDTI 2004 08 Opel Combo C 1 7 CDTI 2004 2010 Opel Corsa C 1 7 CDTI 2003 06 With the exception of the Opel Astra 1 7 CDTI 16V this car had a Bosch engine management system and the other four models are equipped with a Denso control unit In more modern versions introduced in 2010 this engine delivers 100 PS 74 kW 99 hp of maximum power at 4000 rpm while maximum torque is always 260 N m 192 lb ft but delivered between 1 700 and 2 550 rpm In this configuration this engine has been fitted to Opel Meriva B 1 7 CDTI 2010 13 Z17DTR and A17DTR Edit These are more powerful variants but not the most powerful of the Circle L engines They also meet the Euro 4 standard but feature a slightly lower compression ratio of 18 2 1 As in all Euro 4 engine an exhaust gas recirculation system is present The maximum power reaches 125 PS 92 kW 123 hp at 4000 rpm with a peak torque of 280 N m 207 lb ft between 2000 and 2700 rpm This engine was fitted in Opel Corsa D 1 7 CDTI 16V 125hp 2006 11 Opel Corsa D GSi 1 7 CDTI 2007 11 Opel Meriva 1 7 CDTI 16V 125hp 2006 10 Opel Astra 1 7 16V 5p CDTI 125hp 2007 09 Opel Astra H SW 1 7 CDTI 16V 125hp 2007 10 Opel Astra GTC 1 7 CDTI 16V 125hp 2007 11 The abbreviation A17DTR identifies the Euro 5 variant which has otherwise identical features and is fitted in Opel Zafira B 1 7 CDTI 16V 125hp 2009 14 Opel Astra J 1 7 CDTI 125hp 2010 11 A17DTS Edit In 2010 the engine A17DTR was developed into the A17DTS here the engine power has been increased to 130 PS 96 kW 128 hp at 4000 rpm while the maximum torque is increased to 300 N m 221 lb ft between 2000 and 2500 rpm This variant has been fitted in Opel Corsa D 1 7 CDTI 2011 13 Opel Astra J 1 7 CDTI 130cv 2011 14 Opel Meriva B 1 7 CDTI 130cv 2010 13 Opel Mokka 1 7 CDTI 2012 15 Chevrolet Cruze 1 7 VCDi 2012 14 Chevrolet Trax 1 7 D 2013 15 Z17DTJ and A17DTJ Edit This engine was the basis for the 1 7 Ecoflex Maximum power reaches 110 PS 81 kW 108 hp at 3800 rpm with a maximum torque of 260 N m 192 lb ft at 2000 rpm It is fitted in Opel Astra H 1 7 CDTI 16v 110 bhp 2007 09 Opel Astra J 1 7 CDTI 16v 110 bhp 2010 15 Opel Astra GTC H SW 1 7 CDTI 16v 110 bhp 2007 10 Opel Zafira B 1 7 CDTi 16v 110HP 2007 08 A17DTC and A17DTE Edit This is the second diesel engine in the Opel engine range to be included in the EcoFlex range the first was a 1 3 Multijet engine from Fiat Introduced in 2008 is based on the Z17DTJ engine developed simultaneously and is characterized by a reduction of friction of the moving parts in order to optimize the thermal efficiency and meet the stricter Euro 5 standard Outputs are identical to those of the Z17DTJ It is fitted in Opel Meriva B 1 7 CDTi 16v 110HP from 2010 Opel Zafira B 1 7 CDTi 16v 110HP 2008 14 Opel Astra J 1 7 CDTI 16v 110HP 2010 14 Honda EditThe Honda version features common rail direct injection technology while the Opel 4EE2 unit uses low pressure DI Honda s purchase of the Circle L engines was reciprocated by GM s purchase of the J35A3 V6 Applications Honda Civic Europe 4EE2 EditThe 4EE2 produces 74 hp 55 2 kW at 4400 rpm and 165 N m 122 lb ft at 1800 rpm Applications Opel Corsa Opel Meriva Opel Astra Opel Zafira Opel Vectra Cummins MerCruiser Recreational Sterndrive Inboard or Jet Boat Engine See also EditList of GM engines DMAX Honda N series diesel engineExternal links EditIsuzu Builds 1 000 000th Circle L Mercruiser Brochure Mercruiser Brochure Mercruiser Brochure Mercruiser Isuzu Venture Article Retrieved from https en wikipedia org w index php title Circle L engine amp oldid 1129634196, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.