View source for Douvrin engine

{{More citations needed|date=April 2022}}
{{Infobox automobile engine
|name=ZDJ/ZEJ engine (Peugeot)<br>J-Type engine (Renault)
|aka=Douvrin, "J engine"
|configuration    =[[Inline-four engine|Inline-four]]
|manufacturer=Française de Mécanique
|production=1977&ndash;1996
|image=Renault 25 TI engine.jpg
|successor=[[PSA XU engine|XU engine (PSA)]]<br>[[Renault F-Type engine|F-Type engine (Renault)(petrol)]]<br>[[Renault G-Type engine|G-Type engine (Renault)(diesel)]]
|redline=6,000
|block=[[Aluminium alloy]]
|head=Aluminium alloy
|valvetrain=[[SOHC]] 2 or [[Multi-valve#Three valves|3 valves x cyl.]]
|displacement={{cvt|1995-2165|cc|L|1|order=flip}}
|bore={{cvt|86|mm|in|2}}<br/>{{cvt|88|mm|in|2}}
|stroke={{cvt|82|mm|in|2}}<br/>{{cvt|89|mm|in}}
|fueltype=[[Petrol engine|Gasoline]], [[Diesel engine|Diesel]]
|fuelsystem=[[Carburetor]]<br/>[[Multi-point fuel injection]]
|coolingsystem=[[Radiator (engine cooling)|Water-cooled]]
|management=[[Robert Bosch GmbH|Bosch]] [[Jetronic#K-Jetronic .281973.E2.80.931994.29|K-Jetronic]], [[Jetronic#LE1-Jetronic.2C LE2-Jetronic.2C LE3-Jetronic .281981.E2.80.931991.29|LE2-Jetronic]], [[Jetronic#LU2-Jetronic .281983.E2.80.931991.29|LU2-Jetronic]],
[[Renix]]
|power={{cvt|64-175|PS|kW hp|0}}
|torque={{cvt|16.9-19.2|kgm|0}}
|compression=8.8:1-9.8:1
||turbocharger=[[Variable-geometry turbocharger|Variable-nozzle]] (on some versions)
}}
The '''Douvrin''' family is an all-aluminum [[Inline-four engine|inline-four]] [[automobile]] [[piston engine|engine]] designed in the early 1970s and produced from 1977 to 1996 by ''Compagnie Française de Mécanique'', a [[joint-venture]] between [[PSA Peugeot Citroën|PSA]] and [[Renault]] located in the town of [[Douvrin]] in northern [[France]]. This engine is designed by the engineer '''Jean-Jacques His''' (father of [[Formula 1]] engines from Renault and [[Ferrari]]). It was produced in the same factory as the [[PRV engine|''PRV'' V6]], which also is sometimes known outside France as the "Douvrin" V6. The Douvrin engine is also referred to as the '''ZDJ/ZEJ''' engine by [[Peugeot]], and as the '''J-type''' engine by Renault.<ref name=":0">{{Cite web |title=Douvrin engine (1977-1997) |url=https://motor-car.net/renault-engines/item/20005-douvrin-engine |access-date=2022-03-31 |website=Motor Car History |language=en-gb}}</ref>

==Construction==
This engine had an aluminium alloy block with cast iron liners, and an aluminium alloy head with one overhead camshaft driven by belt.
Its displacement varied from 1995 to 2165 cc.
This engine should not be confused with the [[PSA-Renault X-Type engine]] whose displacement varied from 954 to 1360 cc and had a gearbox integrated to the block.
The Douvrin engine on the contrary, had a conventional (external) gearbox setup, and was longitudinally or transversely mounted depending on car model.<ref name=":0" />

=={{anchor|1995|2.0|J7R}}2.0==
The {{cvt|1995|cc|L|1|order=flip}} was an [[oversquare]] design with a single [[belt drive]]n [[overhead camshaft]], an {{cvt|88x82|mm|in|2}} [[bore (engine)|bore]] and [[stroke (engine)|stroke]].

===Applications===

====PSA====
{| class="wikitable"
|-
!Code
!Models
!Power
!Torque
!Compression ratio
!Valves
!Fuel supply
|-
|829 A5||[[Citroën CX]]||{{cvt|108|PS|kW hp|0}} at 5500&nbsp;rpm||{{cvt|16.9|kgm|0}} at 3250&nbsp;rpm||rowspan=2|9.2:1||rowspan=2|8||Carburettor
|-
|ZEJK 829B||[[Peugeot 505]]||{{cvt|110|PS|kW hp|0}} at 5250&nbsp;rpm||{{cvt|17.4|kgm|0}} at 4000&nbsp;rpm||[[Robert Bosch GmbH|Bosch]] [[Jetronic#K-Jetronic .281973.E2.80.931994.29|K-Jetronic]] mechanical [[multi-point fuel injection]]
|}

====Renault====
It was produced in a variety of configurations for Renault:
* naturally aspirated 8-valve, single-barrel [[carburetor]], {{cvt|90|PS|kW hp|0}}, from 1978 to 1993
* naturally aspirated 8-valve, double-barrel carburetor, {{cvt|110|PS|kW hp|0}}, from 1977 to 1992
* naturally aspirated 8-valve, multipoint, Bosch L(U/E) Jetronic fuel injection, {{cvt|120|PS|kW hp|0}} ({{cvt|107|PS|kW hp|0}} with [[catalytic converter]]), from 1984 to 1989 (Catalytic converters required in North American market only.)
* naturally aspirated 8-valve, multipoint, BENDIX ECU-driven, fuel injection, {{cvt|120|PS|kW hp|0}} ({{cvt|107|PS|kW hp|0}} with [[catalytic converter]]), from 1989 to 1996 
* naturally aspirated [[Multi-valve#Three valves|12-valve]], multipoint fuel injection, {{cvt|140|PS|kW hp|0}}, ({{cvt|136|PS|kW hp|0}} with catalytic converter), from 1989 to 1996
* [[turbocharger|turbocharged]] 8-valve, multipoint fuel injection, {{cvt|175|PS|kW hp|0}} ({{cvt|162|PS|kW hp|0}} with catalytic converter), from 1987 to 1993 (Catalytic converters fitted IAW EC directive in MY '89; now referred to as EURO III). 
{{hidden begin
|title      = In the following models:
|titlestyle = background:#88FF88; text-align:left;
|bodystyle  = text-align:left;
}}
* [[Renault 18]][1]
* [[Renault 20]]
* [[Renault 21]]
* [[Renault 25]]
* [[Renault Espace]]
* [[Renault Fuego]]
* [[Renault Safrane]]
* [[Renault Trafic]]
{{hidden end}}

====Others====
* [[Cournil|SIMI Cournil SCE15/25]]
* [[Auverland|Auverland SC 11/200/250]]

==2.2==
The {{cvt|2165|cc|L|1|disp=flip}} version was derived from the {{cvt|1995|cc|L|1|disp=flip}} by a [[stroke (engine)|stroke]] extension from {{cvt|82|to|89|mm|in|2}}, making it an [[undersquare]] design. Most parts, including the [[cylinder head]], were identical to those of the 2-liter unit.

This engine proved as reliable as its 2.0-liter counterpart. It is often confused with the somewhat similar 2.2 litre [[Simca Type 180|Chrysler Type 180]] engine, which displaced {{cvt|2155|cc|L|1|disp=flip}}

===Applications===

====PSA====
{| class="wikitable"
|-
!Code
!Models
!Power
!Torque
!Compression ratio
!Valves
!Fuel supply
|-
|J6T A500||Citroën CX||{{cvt|117|hp-metric|kW|0}} at 5600&nbsp;rpm||{{cvt|18.1|kgm|0}} at 3250&nbsp;rpm||9.8:1||rowspan=5|8||Carburettor
|-
|ZDJK||rowspan=4|Peugeot 505||{{cvt|117|hp-metric|kW|0}} at 5250&nbsp;rpm||{{cvt|19.0|kgm|0}} at 3500&nbsp;rpm||9.2:1||Bosch K-Jetronic multipoint [[mechanical fuel injection]]
|-
|ZDJL 851B||rowspan=2|{{cvt|130|hp-metric|kW|0}} at 5750&nbsp;rpm||rowspan=3|{{cvt|19.2|kgm|0}} at 4250&nbsp;rpm||rowspan=2|9.8:1||rowspan=2|Bosch [[Jetronic#LE1-Jetronic.2C LE2-Jetronic.2C LE3-Jetronic .281981.E2.80.931991.29|LE2-Jetronic]] multipoint [[electronic fuel injection]]
|-
|ZDJL 851Y
|-
|ZDJL 851X||{{cvt|117|hp-metric|kW|0}} at 5750&nbsp;rpm||8.8:1||Bosch [[Jetronic#LU2-Jetronic .281983.E2.80.931991.29|LU2-Jetronic]] multipoint electronic fuel injection with catalytic converter
|}

====Renault====
Renault offered the 2.2 in fewer configurations than the smaller version:
* normally aspirated 8-valve, double-barrel carburetor, {{cvt|110|PS|kW hp|0}}, from 1977 to 1992
* normally aspirated 8-valve, multipoint fuel injection, {{cvt|121|PS|kW hp|0}} ({{cvt|107|PS|kW hp|0}} with catalytic converter), from 1983 to 1996
* normally aspirated 12-valve, multipoint fuel injection, {{cvt|137|PS|kW hp|0}}, from 1989 to 1996
{{hidden begin
|title      = In the following models:
|titlestyle = background:#88FF88; text-align:left;
|bodystyle  = text-align:left;
}}
* [[Renault Espace]]
* [[Renault Fuego]]
* [[Renault 18]]
* [[Renault 20]]
* [[Renault 21]]
* [[Renault 25]]
* [[Renault Master]]
* [[Renault Medallion]]
* [[Renault Safrane]]
{{hidden end}}

====Others====

* 1987–1989 [[Eagle Medallion]]
* 1983–1992 [[Winnebago LeSharo]] (built on Trafic chassis and cab)
* 1983–1992 [[Winnebago LeSharo|Itasca Phasar]] (built on Trafic chassis and cab)

=={{anchor|2.1D|diesel|J8R|J8S}} 2.1 Diesel==
The {{cvt|2068|cc|L|1|disp=flip}} Diesel version was derived from the {{cvt|1995|cc|L|1|disp=flip}} petrol version by a bore reduction from {{cvt|88|to|86|mm|in|2}} and a stroke extension from {{cvt|82|to|89|mm|in|2}}. Cast-iron [[cylinder liner]]s were used to withstand the higher compression ratio of Diesel combustion. The cylinder head was a Ricardo-type pre-chamber design fed by a mechanically controlled fuel pump. This engine was only used by [[Renault]] in three versions:
* normally aspirated 8-valve, {{cvt|64|PS|kW hp|0}}, from 1979 to 1992
* turbocharged 8-valve, {{cvt|88|PS|kW hp|0}}, from 1982 to 1992 - 1),2)
* turbocharged 8-valve with [[Variable-geometry turbocharger|variable-nozzle]], {{cvt|92|PS|kW hp|0}}, from 1990 to 1996
:- Garrett T2 turbocharged 8-valve version was fitted by AMC-Renault in the 1984-1987 Jeep Wagoneer, Cherokee and Comanche models
:- Garrett T3 turbocharged 8-valve version was fitted by AMC-Renault in the 1983-1986 Winnebago Lesharo/Itasca Phasar, based on the [[Renault Trafic]] I 'P'latform chassis, albeit only in FWD, LWB designs.

{{hidden begin
|title      = Applications:
|titlestyle = background:#88FF88; text-align:left;
|bodystyle  = text-align:left;
}}
* [[Renault 18]]
* [[Renault 20]]
* [[Renault 21]]
* [[Renault 25]]
* [[Renault 30]]
* [[Renault Fuego]]
* 1992&ndash;1996 [[Renault Safrane]]
* [[Renault Espace]]
* [[Renault Trafic]]
* [[Renault Master]]
* 1983&ndash;1986 [[Winnebago LeSharo]] (built on Trafic chassis and cab)
* 1983&ndash;1986 [[Winnebago LeSharo|Itasca Phasar]] (built on Trafic chassis and cab)
* [[Jeep Cherokee (XJ)]]
* [[Jeep Comanche]]
{{hidden end}}

== See also ==
* [[List of PSA engines]]
* [[List of Renault engines]]
* [[List of Chrysler engines|List of engines used in Chrysler products]]

== References ==
<references />

{{DEFAULTSORT:J engine}}
[[Category:Française de Mécanique engines]]
[[Category:PSA engines]]
[[Category:Chrysler engines]]
[[Category:Jeep engines]]
[[Category:Renault engines]]
[[Category:Peugeot engines]]
[[Category:Straight-four engines]]