Summary of 850 GLT
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Technical information engine volvo 850 glt.
Page 2: Volvo 850 Engine
Volvo 850 engine introduction the demands on the car of the 90's are very high in every respect. As vehicle manufacturer one can no longer con- centrate only on a subset of all prop- erties. To gain success, excellence is re- quired in all areas. Furthermore, the customer of the 90's will not accept...
Page 3: Development Goals
Development goals every customer expects good comfort, good performance and fuel economy from their car. This in turn, places a demand for effective and efficient technical solutions; to choose, as vol- vo sees it, the best solution for each specific purpose. The challenge for volvo con- sequently m...
Page 4: The Volvo 850 Engine Concept
The volvo 850 engine concept the engine in the volvo 850 glt is an in-line 2.5 litre five-cylinder called the b5254f. Thanks to an extremely compact design of the engine and transmission (see technical in- formation transmission) it has been possible to install it transversely (fig- ure 1), still al...
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Six which is installed longi- tudinally in the rear-wheel driven volvo 960. Both versions clearly illustrates the rational and flexible manufacture of a modular engine system. The major components for the five and six cylinder engines are machined in a common transfer line in the vol- vo skovde plan...
Page 6: Technical Solutions
Technical solutions cylinder block and lower crankcase figure 5 the cylinder block and lower crank- case are manufactured of high- pressure die-cast aluminium. Based on fem (finite element method) analy- sis and simulation, the block has been designed to produce a compact and rigid engine, featuring...
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Crankshaft figure 8 the rigid crankshaft runs in six main bear- ings and has ten coun- terweights. It is made of forged va- nadium-steel and is precipitation hardened. The thrust bearing is placed at the fifth main bearing from the front to minimize both engine overall length and crankshaft rear end...
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Lubrication system the oil is circulated by a rotor oil pump of the crescent-type and has a maximum capacity of 70 litres per minute at 6000 rpm and 80° c oil tem- perature. The inner rotor of the pump is driven directly by splines on the crankshaft. The pump design permits a compact installation, w...
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Air inlet system inlet air is taken ahead of the radiator and passes through the air filter and air mass meter of hot-fim type. The air temperature is thermostatically regu- lated to a minimum of +10° c by mix- ing with warm air taken from the ex- haust manifold. The inlet air then passes through th...
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With closed control valves a negative wave, caused by the descending piston and the inertia of the gas in the longer duct, accelerates the air column in the duct. At resonance rpm the inertia causes the air to ram into the cylinder just before the inlet valve closes. This results in a considerable g...
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Max output for the b5254f is 170 hp (125 kw) at 6000 rpm. Max torque is 220 nm at 3300 rpm. Thanks to the v-vis system, 90 per cent of the maximum torque is available between 2000 and 6000 rpm. Exhaust system figure 18 the exhaust manifold is a welded ex- tractor design. Five separate pipes, each wi...
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Engine control systems the b5254f-engine is controlled by t wo advanced electronic control sys- tems, the lh 3.2 fuel injection system and the ez 129k ignitlon system. These systems are further develop- ments of the well known systems used in the current four-cylinder volvo cars. The development goa...
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The vehicle by carefully selecting the engine mounting system. The mount- ing system for the volvo 850 has been designed on the following grounds: - the two main engine mounts (hydromounts) are located at the node for the vibrations. This means on a line through the centre of gravity for the powertr...
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The b5254f has been developed to meet the high demands on engines in a car, typified by the volvo 850 glt by using modern cae technology. The result is a compact and light- weight in-line five-cylinder engine, characterized by excellent per- formance and torque, good fuel econ- omy and a remarkable ...
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Volvo 850 glt engine specifications type: transverse 5-cylinder in-line displacement: dohc all-aluminium v-vis volvo variable induction system 2435 cc bore x stroke: 83 x 90 mm cr: 10.5:1 valves: 4 per cylinder, angled at max output; 58 degrees 170 hp (125 kw) at 6000 rpm max torque: 220 nm at 3300 ...