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Volvo Roundnose
The Volvo LV120/130/140/150-series, or the Roundnose was a medium-size truck produced by Swedish automaker Volvo between 1939 and 1954. History The "Roundnose" was introduced in the autumn of 1939, in conjunction with the outbreak of the Second World War. The truck was originally built in three versions. The smallest LV120-series had the same side-valve engine as the Sharpnose. The larger LV125-series and the sturdier LV130-series had the same overhead valve engine as its predecessor LV90. During the war, many of these trucks were equipped with wood gas generators. 1944 saw the introduction of the LV140-series with the big FE engine which replaced the LV180/190-series. In 1946 the Roundnose became the first Volvo truck offered with 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volvo
The Volvo Group ( sv, Volvokoncernen; legally Aktiebolaget Volvo, shortened to AB Volvo, stylized as VOLVO) is a Swedish multinational manufacturing corporation headquartered in Gothenburg. While its core activity is the production, distribution and sale of trucks, buses and construction equipment, Volvo also supplies marine and industrial drive systems and financial services. In 2016, it was the world's second-largest manufacturer of heavy-duty trucks. Automobile manufacturer Volvo Cars, also based in Gothenburg, was part of AB Volvo until 1999, when it was sold to the Ford Motor Company. Since 2010 Volvo Cars has been owned by the automotive company Geely Holding Group. Both AB Volvo and Volvo Cars share the Volvo logo and cooperate in running the Volvo Museum in Sweden. The corporation was first listed on the Stockholm Stock Exchange in 1935, and was on the NASDAQ indices from 1985 to 2007. Volvo was established in 1915 as a subsidiary of SKF, a ball bearing manufactu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volvo Longnose
The Volvo LV180/190 and 290-series, or the Longnose was a truck produced by Swedish automaker Volvo between 1937 and 1951. Volvo LV180/190 The LV180/190-series was presented in the beginning of 1937. The truck shared both front end and engine with the smaller LV90-series while other components were sturdier to cope with heavier loads. Production ceased in 1943 and the LV180/190-series was replaced by larger versions of the Roundnose. Volvo LV290 The "Longnose" LV290 was Volvo's largest truck so far. With trailing axle the gross weight could reach 13 tonnes. It had a new overhead valve engine, designed by Gotthard Österberg who had come to Volvo when Tidaholm ceased production in 1933. To cover the engine the LV290 had an even longer bonnet than the LV180/190 trucks. During the Second World War many of these trucks had their engines converted to run on wood gas. From 1947 onwards the LV290 series could be delivered with Volvo's pre-chamber diesel engine VDB. On these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Gas
Wood gas is a fuel gas that can be used for furnaces, stoves, and vehicles. During the production process, biomass or related carbon-containing materials are gasified within the oxygen-limited environment of a wood gas generator to produce a combustible mixture. In some gasifiers this process is preceded by pyrolysis, where the biomass or coal is first converted to char, releasing methane and tar rich in polycyclic aromatic hydrocarbons. In stark contrast with synthesis gas, which is almost pure H2/CO mixture, wood gas ''also'' contains a variety of organic compound ("distillates") that require scrubbing for use in other applications. Depending on the kind of biomass, a variety of contaminants are produced that will condense out as the gas cools. When producer gas is used to power cars and boats or distributed to remote locations it is necessary to scrub the gas to remove the materials that can condense and clog carburetors and gas lines. Anthracite and coke are preferred for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesselman Engine
The Hesselman engine is a hybrid between a petrol engine and a Diesel engine. It was designed and introduced in 1925 by Swedish engineer Jonas Hesselman (1877-1957). It represented the first use of direct gasoline injection on a spark-ignition engine used to power a road going vehicle. Hesselman engines saw use in heavy trucks and buses in models produced in the 1920s and 1930s. Operation The Hesselman engine incorporates a combustion process with regular intake air compression. The fuel is direct-injected into the combustion chamber at the very end of the compression stroke, near top dead centre (TDC). Due to low compression, the inhomogeneous air-fuel mixture must be ignited by a spark plug. Under full load, Hesselman engine uses quality torque controlling without throttling, whilst under medium load and when idling, a throttle valve ensures a stable engine speed. Injection duration can be manipulated to adapt to the engine load, with the injection end point remaining al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Valve
An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located below the combustion chamber in the engine block. Although an overhead camshaft (OHC) engine also has overhead valves, the common usage of the term "overhead valve engine" is limited to engines where the camshaft is located in the engine block. In these traditional OHV engines, the motion of the camshaft is transferred using pushrods (hence the term "pushrod engine") and rocker arms to operate the valves at the top of the engine. Some early intake-over-exhaust engines used a hybrid design combining elements of both side-valves and overhead valves. History Predecessors The first internal combustion engines were based on steam engines and therefore used slide valves. This was the case for the first Otto engine, which was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrol Engine
A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E10'' and ''E85''). Most petrol engines use spark ignition, unlike diesel engines which typically use compression ignition. Another key difference to diesel engines is that petrol engines typically have a lower compression ratio. Design Thermodynamic cycle Most petrol engines use either the four-stroke Otto cycle or the two-stroke cycle. Petrol engines have also been produced using the Miller cycle and Atkinson cycle. Layout Most petrol-powered piston engines are straight engines or V engines. However, flat engines, W engines and other layouts are sometimes used. Wankel engines are classified by the number of rotors used. Compression ratio Cooling Petrol engines are either air-cooled or water-cooled. Ignitio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Side Valve
A flathead engine, also known as a sidevalve engine''American Rodder'', 6/94, pp.45 & 93. or valve-in-block engine is an internal combustion engine with its poppet valves contained within the engine block, instead of in the cylinder head, as in an overhead valve engine. Flatheads were widely used internationally by automobile manufacturers from the late 1890s until the mid-1950s but were replaced by more efficient overhead valve and overhead camshaft engines. They are currently experiencing a revival in low-revving aero-engines such as the D-Motor. The side-valve design The valve gear comprises a camshaft sited low in the cylinder block which operates the poppet valves via tappets and short pushrods (or sometimes with no pushrods at all). The flathead system obviates the need for further valvetrain components such as lengthy pushrods, rocker arms, overhead valves or overhead camshafts. The sidevalves are typically adjacent, sited on one side of the cylinder(s), though some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volvo Sidevalve Straight-6 Engine ...
Penta DB was an engine model produced by AB Pentaverken. The 1929 introduced engine was a side-valve engine with a cast-iron block and seven main bearings, and the first straight-6 engine used in Volvos. Four other variants followed after. These engines powered all six-cylinder Volvo passenger cars and taxi cabs, as well as the company's small trucks between 1929 and 1958. Versions: See also * List of Volvo engines References * Volvo Personvagnar-från 20-tal till 80-tal av Björn-Eric Lindh, 1984. {{ISBN, 91-86442-06-6 Pentadb Volvo The Volvo Group ( sv, Volvokoncernen; legally Aktiebolaget Volvo, shortened to AB Volvo, stylized as VOLVO) is a Swedish multinational manufacturing corporation headquartered in Gothenburg. While its core activity is the production, distributio ... [...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 is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Gas Generator
A wood gas generator is a gasification unit which converts timber or charcoal into wood gas, a producer gas consisting of atmospheric nitrogen, carbon monoxide, hydrogen, traces of methane, and other gases, which – after cooling and filtering – can then be used to power an internal combustion engine or for other purposes. Historically wood gas generators were often mounted on vehicles, but present studies and developments concentrate mostly on stationary plants. History Origins Gasification was an important and common technology during the 19th and early 20th century. Town gas produced from coal was widely used, mainly for lighting purposes. When stationary internal combustion engines based on the Otto cycle became available in the 1870s, they began displacing steam engines as prime movers in many works requiring stationary motive power. Adoption accelerated after the Otto engine's patent expired in 1886. The potential and practical applicability of gasification ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volvo LV81-series
The Volvo LV80/90-series was a medium size truck produced by Swedish automaker Volvo between 1935 and 1940. History Volvo presented a new medium-sized truck in 1935. The truck was available in two versions: the smaller LV80-series, with a side-valve engine and the larger LV90-series, with an overhead valve engine. On this generation of trucks the engine and cab was moved forward so that the engine was mounted above the front axle, not behind as before. This gives a better load distribution between the front and rear axle, resulting in reduced rear axle load. After a year the older DC engine of the LV90-series was replaced by the bigger FC engine. Both engines were offered in Hesselman version. Engines Gallery File:Volvo LV 84D Fire Engine 1936.jpg, 1936 Volvo LV84 fire engine. File:Volvo LV 84 Bus 1938.jpg, 1938 Volvo LV84 bus A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a road vehicle that carries significantly more passenger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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