Breakthrough 50 kW/liter critical point reshaping the micro-vehicle power new benchmark
In the field of micro-vehicles with unsatisfactory power, the B series engine pioneered the introduction of a unique inline 4-cylinder double overhead camshaft 16-valve design, and equipped with PDA multi-valve controller, EGR electronic The B series engine is equipped with PDA multi-valve controller, EGR electronic control valve, low inertia piston and other advanced accessories, breaking through the historical bottleneck of domestic small-displacement automobile whose liter power is generally lower than 50 kW/liter! The unparalleled strong kinetic energy instantly ignites the majestic power of Chinese microcars, making the whole car more powerful and accelerating more rapidly under the same displacement, and the power is pouring out of the gate, unceasingly!
*Liter power: the key element to determine the performance of the engine, which represents the power created by each liter of cylinder volume, the greater the liter power, the greater the power.
Shanghai Automobile General Motors (SAIC) Wuling B-series engine
Shanghai Automobile General Motors (SAIC) Wuling has put into production the B-series engine, which inherits the shareholders' advantageous resources in engine research and development, adopts GM's engine technology design, which is developed with the participation of the SGMW Technology Center, and is manufactured in combination with the characteristics of the domestic market demand.
Low cost, low fuel consumption, high power, liter power of 52.2KW/L
16-valve, double overhead camshaft, multi-point EFI, so that the fuel is fully combusted, to achieve the best economic results. 750 ± 50RPM idle speed, to achieve the advanced level of idling design in the same class of vehicles. Maximum power 63kw/6000rpm, maximum torque 108Nm/4000rpm.
Main performance parameters of the B12 engine:
Engine trademark SGMW
Emission level Ⅳ
Fuel type Gasoline
Engine ignition mode Ignition type
Engine fuel supply mode Multipoint Electric injection
Engine intake system naturally aspirated
Engine cooling system water-cooled
Engine cylinder arrangement inline
Number of engine cylinders 4
Engine center distance (mm) 75.5
Number of intake valves 2
Number of exhaust valves 2
Displacement (L) 1.206
Volume compression ratio 9.8:1
Bore (mm) 69.7
Stroke (mm) 79
Rated power (kW) 63.0
Rated speed (rpm) 6000
Fuel supply per stroke at rated speed (mm) N/A
Idle speed ( rpm) 750±50
Maximum torque (N.m) 108
Maximum torque speed (rpm) 4000
Fuel supply per stroke at maximum torque speed (mm) N/A
Engine features:
More than 50KW/L liter power
The peak liter power of B series engine The peak power of the B-series engine reaches 52.2KW/L. The 100km fuel consumption of the all-"heart" Wuling Hongtu is much lower than that of the existing small-displacement engines. The engine can meet the standard of excellent small-displacement engine in terms of power, fuel economy and environmental protection, and is a new generation of advanced engine with small displacement, high power and low fuel consumption.
Wuling B series engine ten standard:
Lead the excellent high power refresh value low fuel consumption
PDA multi-valve technology application - by the electronic control unit (ECU) precise control of the PDA executive system, can improve the torque output at low speed, while ensuring high speed high output characteristics, improving engine acceleration performance while effectively reducing fuel consumption and saving more money.
Double overhead camshaft - the introduction of extreme sports racing technology, the engine structure is compact, improve transmission efficiency; accurate gas distribution, combustion, so that every intake and exhaust are "bullet" without false start.
8 in 8 out 16 valves - more valves, large area, intake and exhaust efficiency is greatly improved; individual valve size reduction, quality reduction, reduce the inertia of the valve system, reduce system loss, maximize efficiency.
Low inertia valve train--Adopting advanced lightweight materials, the valve train is directly driven by the camshaft, reducing the number of running parts, which is conducive to increasing power and reducing fuel consumption.
Low friction crankshaft connecting rod mechanism--Small friction, low loss, the kinetic energy is transmitted to the driving system without any omission, which improves the power of the whole engine and reduces the fuel consumption, which is more economical.
Low inertia piston, low-tension piston ring - the piston is made of advanced high-temperature aluminum alloy, lighter weight, easier engine operation, reducing unnecessary loss, and low-tension piston ring to reduce the amount of piston blow-by, better sealing effect of the combustion chamber, high power, low fuel consumption.
Maintenance-free chain drive system - reduces motion resistance, avoids the danger of belt breakage, no need for maintenance and replacement, saves effort and makes it easier.
Synthetic Plastic Intake Manifold--Innovate the engine intake system, improve the filling efficiency and fuel efficiency, and the synthetic plastic material greatly reduces the weight of the whole vehicle.
Combustion chamber 9.8:1 high compression ratio - with the leading micro-vehicle field of high power output, so that the engine power exceeds 50 kW/liter in one fell swoop.
EGR exhaust gas recirculation device - enables part of the exhaust gas to be recycled and utilized, which is conducive to increasing the heat capacity of the mixture, lowering the maximum temperature of the combustion chamber, inhibiting the generation of NOX and other harmful gases, and greatly reducing fuel consumption.
Engine structure:
Advanced 16V dual overhead camshaft engine structure
The SGMW-B series engine adopts an inline four-cylinder design, with two inlet valves and two outlet valves for each cylinder, totaling ****16 valves, which makes this engine reach the level of advanced four-cylinder cars in terms of valve design. Adopting the DOHC (Direct Drive of Double Overhead Camshaft) type structure, the valves work in a direct push type DOHC configuration, which reduces friction and realizes power tracking performance at high RPM, and at the same time, simplifies the structure and reduces the number of parts, thus effectively compressing the weight and volume of the engine. In addition, the SGMW-B series engines have an extended service life due to the adoption of a camshaft drive with a chain drive method that has excellent durability.
Electronic Engine Injection System:
MPI Multi-point Electronic Fuel Injection System
The SGMW-B series engines are equipped with a gasoline nozzle for each cylinder, which realizes independent fuel supply for each cylinder and avoids the disadvantage of "one-size-fits-all" single-point injection. The amount of fuel injected into each cylinder is controlled and regulated by a computer, so the amount and timing of fuel injection into each cylinder should be more precise, thus improving the combustion efficiency of the engine.
Triple Pillar
Zero Defects Standard - Developed in accordance with the GPDP development process of the world's automotive innovator - General Motors, and inspected according to its engine testing standards, to cool hot and cold tests, tens of thousands of hours, hundreds of thousands of kilometers, the perfect boutique zero defects. The perfect boutique with zero defects.
Multinational Think Tank--The internationalized R&D team with GM technology as its core, integrating experts from PAC, GM, Germany, Italy, Japan and other countries, all of whom have more than 20 years of experience in car-making, and all of whom are executing the strict craftsmanship according to GM to the end.
The cutting-edge new equipment--All of the advanced equipment made in Germany, the United States, Japan and other countries, and the global automotive industry quality system standards TS16949, GM Global Manufacturing System GMS for the management standards, for the pursuit of excellence in the slightest bit unremitting.
TS16949, GM Global Manufacturing System GMS for management standards, for the pursuit of excellence in the slightest.
Emission standards:
Conforms to the leading emission standards
In order to meet the increasingly stringent environmental protection and energy saving requirements of the Chinese market in the future, the SGMW-B series engine has taken into full consideration the requirements of low fuel consumption and low emission in the design of its technical performance parameters, and conforms to the National Ⅲ and Ⅳ emission standards, fuel economy and other regulatory requirements
The SGMW-B series engine is designed to meet the requirements of the Chinese market for environmental protection and energy saving in the future.