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Douvrin engine

From Alfawiki
Compagnie Française de Mécanique
Company typeJoint venture
IndustryAutomotive engineering, Engine manufacturing
Founded1970s in Douvrin, France
FounderPSA, Renault
Headquarters
Douvrin
,
France
Area served
Worldwide (automotive industry)
Key people
Jean-Jacques His (engine designer)
ProductsDouvrin series inline-four engines
OwnerPSA, Renault

The Douvrin series represents a family of all-aluminum inline-four automobile engines, initially designed in the early 1970s and produced between 1977 and 1996 by Compagnie Française de Mécanique. This company was a collaborative effort between PSA and Renault, headquartered in Douvrin, located in northern France. The engine's design was led by engineer Jean-Jacques His, renowned for his contributions to Formula 1 power units for Renault and Ferrari. Production took place alongside the PRV V6, which is also referred to as the "Douvrin" V6 outside of France. PSA designates this engine under the ZDJ/ZEJ codes, whereas Renault identifies it as the J-type engine.

Construction

This powerplant features an aluminium alloy block equipped with cast iron cylinder liners and an aluminium cylinder head. It utilizes a single overhead camshaft actuated by a timing belt, with displacement sizes ranging from 1995 to 2165 cc. Unlike the smaller PSA-Renault X-Type engine—which spans from 954 to 1360 cc and integrates the gearbox—the Douvrin engine uses a traditional external transmission. Its installation orientation varies, being either longitudinal or transverse depending on the vehicle model it powers.

2.0

This variant is characterized by an oversquare configuration with a single overhead camshaft driven by a timing belt, featuring specific bore and stroke measurements.

PSA

Code Models Power Torque Compression ratio Valves Fuel supply
829 A5 Citroën CX 108 PS (79 kW; 107 hp) at 5500 rpm 16.9 kg⋅m (166 N⋅m; 122 lbf⋅ft) at 3250 rpm 9.2:1 8 Carburettor
ZEJK 829B Peugeot 505 110 PS (81 kW; 108 hp) at 5250 rpm 17.4 kg⋅m (171 N⋅m; 126 lbf⋅ft) at 4000 rpm Bosch K-Jetronic mechanical multi-point fuel injection

Renault

Renault offered this engine in several configurations:

  • Naturally aspirated with 8 valves and a single-barrel carburetor, , produced from 1978 to 1993
  • Naturally aspirated with 8 valves and a double-barrel carburetor, , manufactured between 1977 and 1992
  • Naturally aspirated 8-valve version equipped with multipoint Bosch L(U/E) Jetronic fuel injection, (with catalytic converter), available from 1984 to 1989 in the North American market
  • Naturally aspirated 8-valve variant featuring multipoint BENDIX ECU-controlled fuel injection, (with catalytic converter), produced from 1989 to 1996
  • Naturally aspirated 12-valve model with multipoint fuel injection, (with catalytic converter), manufactured between 1989 and 1996
  • Turbocharged 8-valve version using multipoint fuel injection, (with catalytic converter), produced from 1987 to 1993 and compliant with EURO III standards starting model year '89

These engines powered various Renault vehicles including:

Others

Additional applications include:

2.2

The development of the 2.2-liter engine involved increasing the stroke dimension from that of the previous version to , resulting in an undersquare layout. Most parts, such as the cylinder head, remained identical to those used in the 2.0-liter model.

This engine preserved reliability on par with its 2.0-liter counterpart and should not be confused with the Chrysler Type 180's similar displacement 2.2L engine ().

PSA

Code Models Power Torque Compression ratio Valves Fuel supply
J6T A500 Citroën CX 117 hp (86 kW) at 5600 rpm 18.1 kg⋅m (178 N⋅m; 131 lbf⋅ft) at 3250 rpm 9.8:1 8 Carburettor
ZDJK Peugeot 505 117[convert: needs unit name] at 5250 rpm 19.0[convert: needs unit name] at 3500 rpm 9.2:1 Bosch K-Jetronic mechanical multipoint fuel injection
ZDJL 851B rowspan=2>130[convert: needs unit name] at 5750 rpm rowspan=3>19.2[convert: needs unit name] at 4250 rpm rowspan=2>9.8:1 rowspan=2>Bosch LE2-Jetronic electronic multipoint fuel injection

|- |ZDJL 851Y |- |ZDJL 851X|| at 5750 rpm||8.8:1||Bosch LU2-Jetronic electronic multipoint injection with catalytic converter |}

Renault

Renault’s 2.2-liter engine was available in fewer variants compared to the smaller displacement version:

  • naturally aspirated, 8-valve with a double-barrel carburetor, , produced from 1977 until 1992
  • naturally aspirated, 8-valve equipped with multipoint fuel injection, (including versions with catalytic converters), offered from 1983 to 1996
  • naturally aspirated, 12-valve featuring multipoint fuel injection, , manufactured between 1989 and 1996

This engine was installed in the following Renault models:

Other Applications

2.1 Diesel

The diesel variant was developed from the petrol engine by decreasing the bore to and increasing the stroke to . It incorporated cast-iron cylinder liners to accommodate higher compression ratios and utilized a Ricardo-style pre-chamber cylinder head paired with a mechanically governed fuel pump. Renault produced this diesel in three main configurations:

  • naturally aspirated, 8-valve, , available from 1979 to 1992
  • turbocharged, 8-valve, , produced between 1982 and 1992
  • turbocharged, 8-valve with a variable-nozzle turbocharger, , offered from 1990 through 1996

The Garrett T2 turbocharged version was used in AMC-Renault Jeep Wagoneer, Cherokee, and Comanche models during the years 1984 to 1987. Meanwhile, the Garrett T3 turbocharger powered AMC-Renault Winnebago LeSharo and Itasca Phasar vehicles (1983–1986), which were based on the front-wheel-drive long-wheelbase Renault Trafic I platform.

This engine powered various models including:

See also

References

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