“Mercedes-Benz OM602 engine”的意思、由来-开放百科全书

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Mercedes-Benz OM602 engine

释义

The engine
Versions of OM602 Mercedes 5-cylinder diesel engine

{{Unreferenced|date=August 2012}}{{Infobox automobile engine
|image=Motor Om 602 982.jpg
|name=Mercedes-Benz OM602 Diesel Engine
|manufacturer=Daimler-Benz
|production=1985 to 2002
|successor = OM605
|configuration=Straight-5
|valvetrain=SOHC 2 valves x cyl.
|fueltype=Diesel
|fuelsystem=Indirect injection
Direct injection
|coolingsystem=Water-cooled
|management=Bosch PES in-line or VE-style rotary distributor injection pumps
|turbocharger=On some versions
|displacement={{convert|2497|cc|L|1|order=flip|abbr=on}}
{{convert|2874|cc|L|1|order=flip|abbr=on}}
|power={{convert|66-95|kW|PS hp|0|abbr=on}}
}}

The successor of the OM617 engine family was the newly developed straight-5 diesel automobile engine OM602 from Mercedes-Benz used from 1980s up to 2002. With some Mercedes-Benz 250D/E250D diesels exceeding {{convert|500000|or|1000000|mi|km}}, it is considered to be one of the most reliable engines ever produced, a success which is only comparable with the famous OM617 engine.

The 5-cylinder OM602 was succeeded by the four-valve engine OM605 (E250D 20V) and later the OM612 and OM647 with turbocharger and common rail direct injection (C/E/ML 270CDI).

The engine

The Mercedes OM602 engine is a 5-cylinder diesel engine of {{convert|2497|or|2874|cc|L|1|order=flip|abbr=on}}. The {{convert|2874|cc|L|1|order=flip|abbr=on}} was used in the 310D and 410D Mercedes-Benz T1 and the Phase 1 Mercedes-Benz Sprinter vans (where it was modified for direct injection), the Ssangyong Musso and Korando range and even in the 1996–1999 models of the E-class.

It was available in either naturally aspirated or turbocharged variants with two valves per cylinder.

The camshafts and injection pump are driven by duplex chain from the crankshaft. A separate single-row chain drives the oil pump. The camshaft operated the valves via hydraulic bucket tappets; valve clearance adjustment is automatic.

On many OM602 engines fuel injection is indirect. A Bosch PES in-line injection pump is used, with a mechanical governor and vacuum-operated stop control. The pump is lubricated by a connection to the engine oil circulation and the fuel lift pump is mounted on the side of the injection pump.

Some later versions of the {{convert|2874|cc|L|1|order=flip|abbr=on}} capacity unit use a Bosch VE-style rotary distributor injection pump with electronic control and have a significantly different combustion chamber as they use direct injection.

Preheating is by glow plugs with automatic control of preheating time.

Versions of OM602 Mercedes 5-cylinder diesel engine

Model indication	Year	Engine no OM602...	Power
OM 602.xxx (5-cylinder diesel)
W201 190 2.5 D & W124 250 D	04/1985 - 06/1993	.911 & .912 & .930 & .931	{{convert\|66\|kW\|PS hp\|0\|abbr=on}} (<'89) or {{convert\|69\|kW\|PS hp\|0\|abbr=on}} (>'89)
G-Class 250 GD 4x4	04/1985 - 06/1993	.938 & .939
T1 210 & 310 & 410 2.9 D.	10/1988 -> 1995	.940 & .942	{{convert\|72\|kW\|PS hp\|0\|abbr=on}} or {{convert\|75\|kW\|PS hp\|0\|abbr=on}}
G-Class 290 GD 4x4	10/1988 -> 1995	.946 & .947
W201 190D 2.5 Turbo & W124 250D Turbo / 300D 2.5 Turbo	01/1987 -> 1996	A.961 & A.962	{{convert\|90\|kW\|PS hp\|0\|abbr=on}} (<'88) or {{convert\|92\|kW\|PS hp\|0\|abbr=on}} (>'88)
Sprinter 2,5 Turbo-D.	01/1987 -> 1996	A.963
212D & 312D & 412D & Sprinter 2.9 TD	02/1995 -> 04/2000	A.980 & A.986	{{convert>90\|kW\|PS hp\|0\|abbr=on}}
G-Class 290 GD turbodiesel 4x4	07/1997 -> 09/2000	A.983	{{convert>88\|kW\|PS hp\|0\|abbr=on}}
W210 E290 turbodiesel	03/1996 -> 07/1999	A.982	{{convert>95\|kW\|PS hp\|0\|abbr=on}}

2 : Mercedes-Benz engines|Diesel engines by model

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