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Mercedes-Benz OM621 Engine
The OM621 is an inline-four diesel engine produced by Mercedes-Benz, from 1956 to 1968. It was succeeded by the OM615 engine. Design The OM621 is based on the petrol M121 engine, but features revised camshafts, cylinder head, pistons, and fuel injection system. In 1961, the engine capacity was increased to and power was uprated to for use in the newly introduced W110 models. After being replaced by the OM615, a updated version of the OM621 engine was used solely in Unimog The Unimog (, ) is a range of multi-purpose tractors, trucks and lorries that has been produced by Boehringer from 1948 until 1951, and by Daimler Truck (formerly Daimler-Benz, DaimlerChrysler and Daimler AG) since 1951. In the United States and ... vehicles until 1988. Models OM621 (37 kW version) * 1958–1959 W121 190D, 190Db OM621 (35 kW version) * 1961–1962 W120 180Dc OM621 (40 kW version) * 1961–1965 W110 190Dc * 1965–1968 W110 200D * 1966–1988 Unimog 421 References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz
Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartered in Stuttgart, Baden-Württemberg, Germany. Mercedes-Benz AG produces consumer luxury vehicles and commercial vehicles badged as Mercedes-Benz. From November 2019 onwards, Mercedes-Benz-badged heavy commercial vehicles (trucks and buses) are managed by Daimler Truck, a former part of the Mercedes-Benz Group turned into an independent company in late 2021. In 2018, Mercedes-Benz was the largest brand of premium vehicles in the world, having sold 2.31 million passenger cars. The brand's origins lie in Daimler-Motoren-Gesellschaft's 1901 Mercedes (marque), Mercedes and Carl Benz's 1886 Benz Patent-Motorwagen, which is widely regarded as the first internal combustion engine in a self-propelled automobile. The slogan for the brand is "the bes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz M121 Engine
The Mercedes-Benz M121 engine was a 1.9 liter single overhead camshaft inline four-cylinder engine introduced by Mercedes in 1955 and used in various model lines during the 1950s and 1960s. Originally rated at at 5500 rpm, it replaced the 1.8 liter M136 introduced in 1935, offering improved performance over the M136's side camshaft design. Applications included mid-size sedans, such as the 190, the 190SL roadster, and trucks such as the Unimog and L319 models. History The M121 engine was developed just after the end of World War II. It was built in the Sindelfingen Works factory, which assembled the Mercedes Ponton Model series to which the engine belonged to. The M121 engine made its debut in 1955. It was the first generation of 4-cylinder engines from Mercedes Benz. The M121 replaced the less efficient M136 1.8-litre engine, a pre World War II engine that was introduced 2 years before in 1953. The M121 benefited from innovations and technology from Mercedes' larger e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz Engines
Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartered in Stuttgart, Baden-Württemberg, Germany. Mercedes-Benz AG produces consumer luxury vehicles and commercial vehicles badged as Mercedes-Benz. From November 2019 onwards, Mercedes-Benz-badged heavy commercial vehicles (trucks and buses) are managed by Daimler Truck, a former part of the Mercedes-Benz Group turned into an independent company in late 2021. In 2018, Mercedes-Benz was the largest brand of premium vehicles in the world, having sold 2.31 million passenger cars. The brand's origins lie in Daimler-Motoren-Gesellschaft's 1901 Mercedes and Carl Benz's 1886 Benz Patent-Motorwagen, which is widely regarded as the first internal combustion engine in a self-propelled automobile. The slogan for the brand is "the best or nothing" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz W120
The Mercedes-Benz W 120 and Mercedes-Benz W 121 are technically similar inline-four cylinder sedans made by Daimler-Benz. The W 120 was first introduced by Mercedes-Benz in 1953. Powered initially by the company's existing 1.8 liter M 136 engine, it was sold as the ''Mercedes-Benz 180'' through 1962. From 1954, Mercedes-Benz also offered the W 120 with a diesel engine as the ''Mercedes-Benz 180 D''. The Mercedes-Benz W 121 was introduced as the ''Mercedes-Benz 190'' in 1956, powered by a 1.9 liter M 121 engine. From 1958, the W 121 was also offered with an OM 621 engine, sold as the ''Mercedes-Benz 190 D'' through 1961. The W 120 was nicknamed the ''Ponton'' (along with other Mercedes models) after its introduction, because it employed ''Ponton'', or pontoon styling, a prominent styling trend that unified a car's previously articulated hood, body, fenders and running boards into a singular envelope. Together with the more luxurious and somewhat larger 2.2 lite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz W121
The Mercedes-Benz W 120 and Mercedes-Benz W 121 are technically similar inline-four cylinder sedans made by Daimler-Benz. The W 120 was first introduced by Mercedes-Benz in 1953. Powered initially by the company's existing 1.8 liter M 136 engine, it was sold as the ''Mercedes-Benz 180'' through 1962. From 1954, Mercedes-Benz also offered the W 120 with a diesel engine as the ''Mercedes-Benz 180 D''. The Mercedes-Benz W 121 was introduced as the ''Mercedes-Benz 190'' in 1956, powered by a 1.9 liter M 121 engine. From 1958, the W 121 was also offered with an OM 621 engine, sold as the ''Mercedes-Benz 190 D'' through 1961. The W 120 was nicknamed the ''Ponton'' (along with other Mercedes models) after its introduction, because it employed ''Ponton'', or pontoon styling, a prominent styling trend that unified a car's previously articulated hood, body, fenders and running boards into a singular envelope. Together with the more luxurious and somewhat larger 2.2 lite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unimog
The Unimog (, ) is a range of multi-purpose tractors, trucks and lorries that has been produced by Boehringer from 1948 until 1951, and by Daimler Truck (formerly Daimler-Benz, DaimlerChrysler and Daimler AG) since 1951. In the United States and Canada, the Unimog was sold as the Freightliner Unimog. Unimog production started in 1948 at in Göppingen. Daimler-Benz took over manufacture of the Unimog in 1951, and first produced it in their Gaggenau plant. From 1951, the Unimog was sold under the Mercedes-Benz brand. However, the first Unimog to feature the three-pointed Mercedes-Benz star was only introduced in 1953. Since 2002, the Unimog has been built in the Mercedes-Benz truck plant in Wörth am Rhein in Germany. The Mercedes-Benz Türk A.Ş. plant assembles Unimogs in Aksaray, Turkey. Unimogs were also built in Argentina (first ever country to do so outside Germany) by Mercedes-Benz Argentina S.A. under licence from 1968 until 1983 (with some extra units built until 1991 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz W110
The W110 was Mercedes-Benz's entry level line of midsize automobiles in the mid-1960s. One of Mercedes' range of " Fintail" (german: Heckflosse) models, the W110 initially was available with either a 1.9 L M121 gasoline or 2.0 L OM621 diesel inline-four. It was introduced with the 190c and 190Dc sedans in April 1961, replacing the W120 180c/180Dc and W121 190b/190Db. The W110 line was refreshed in July 1965 to become the 200 and Diesel 200D (model year 1966 for North America); at the same time, a six-cylinder 230 (successor to the Mercedes 220) became part of the W110 line. Production lasted just three more years, with the W115 220 and 220D introduced in 1968. The W110 and the 6-cylinder W111 were the first series of Mercedes cars to be extensively crash tested for occupant safety. First series (1961–1965) The 190c and 190Dc replaced the W120 180c/180Dc and W121 190b/190Db as Mercedes-Benz's line of less-expensive four-cylinder sedans. The "D" denoted a Diesel en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston
A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder. __TOC__ Piston engines Internal combustion engines An internal combustion engine is acted upon by the pressure of the expanding combustion gases in the combustion chamber space at the top of the cylinder. This force then acts downwards through the connecting rod and onto the crankshaft. The connecting rod is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder Head
In an internal combustion engine, the cylinder head (often abbreviated to simply "head") sits above the cylinders and forms the roof of the combustion chamber. In sidevalve engines, the head is a simple sheet of metal; whereas in more modern overhead valve and overhead camshaft engines, the cylinder head is a more complicated block often containing inlet and exhaust passages, coolant passages, valves, camshafts, spark plugs and fuel injectors. Most straight engines have a single cylinder head shared by all of the cylinders and most V engines have two cylinder heads (one per bank of cylinders). Design A summary of engine designs is shown below, in chronological order for automobile usage. Sidevalve engines In a flathead (''sidevalve'') engine, all of the valvetrain components are contained within the block, therefore the head is usually a simple sheet of metal bolted to the top of the engine block. Sidevalve engines were once universal in automobiles but are no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camshaft
A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems and early electric motor speed controllers. Camshafts in piston engines are usually made from steel or cast iron, and the shape of the cams greatly affects the engine's characteristics. History Trip hammers are one of the early uses of a form of cam to convert rotating motion, e.g. from a waterwheel, into the reciprocating motion of a hammer used in forging or to pound grain. Evidence for these exists back to the Han Dynasty in China, and they were widespread by the medieval period. The camshaft was described in 1206 by engineer Al-Jazari. He employed it as part of his automata, water-raising machines, and water clocks such as the castle clock. Once the rotative version of the steam engine was developed in the late 18th century, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine ( gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz OM636 Engine
The Mercedes-Benz OM 636 is a diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-cal ... that was produced by Daimler-Benz from 1948 until 1990. Being the successor to the OM–138, the OM–636 has been used both as a passenger car engine and as an industrial engine. It saw its first use in the Boehringer Unimog in 1948, prior to its official introduction in the 1949 Mercedes-Benz W–136. Throughout the 1950s, the OM–636 was widely used in the Mercedes-Benz W 120. In 1958, it was succeeded by the OM 621 passenger car engine. However, after the introduction of the OM 621, the OM 636 was kept in production for industrial vehicles such as small lorries, boats, and combine harvesters, until 1990. The abbreviation ''OM'' means ''Oelmotor'' (oil engine), and stands for a Da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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