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240 Landmarks TopGasoline and Natural Gas Engine > 4AELU engine (mounted on Toyota Carina FF 4-door sedan)
 4AELU engine (mounted on Toyota Carina FF 4-door sedan)
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This was the first engine in the world to use a lean burn combustion control system with a lean mixture sensor. It was mounted on the Toyota Carina FF 4-door sedan released in May 1984.
The lean mixture sensor was provided in the exhaust system to detect air-fuel ratios leaner than the theoretical air-fuel ratio. The fuel injection volume was then accurately controlled by a computer using this detection signal to achieve lean air-fuel ratio feedback.
For optimal combustion, the following items were applied: program independent injection that accurately changed the injection volume and timing for individual cylinders, platinum plugs for improving ignition performance with lean mixtures, and high performance igniters. Other features included stable lean mixture combustion at an air-fuel ratio of 23 or more by improving the engine body (such as by adding a swirl control valve), and the lowest fuel consumption in the 1600 cc class (17.0 km/l (10 mode)).
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Storage location:TOYOTA MOTOR CORPORATION (1 Toyota-cho, Toyota-shi, Aichi-ken 471-8571)
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Year manufactured:1984
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Manufacturer:Toyota Motor Co., Ltd.
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Classification:Mass-production product
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Current status:In storage: not open to the public
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Model / Manufacture
Model:4AELU engine
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Company name:Toyota Motor Corporation
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Usage:Engine
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Year of manufacture:1984
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Specification
Cylinder arrangement, number of cylinders:Inline 4-cylinder (4A-ELU)
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Cycle / cooling method:/Water-cooled
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Valve type / number:OHC/
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Total displacement:1587 cc
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Bore x stroke:81.0×77.0 mm
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Compression ratio:9.3
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Ignition system:Full transistor type
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Performance
Max. output:100 ps/5600 rpm
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Max. torque:14.0 kgm/4000 rpm
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Device
Supercharger type:None
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Features:This was the first engine in the world to use a lean burn combustion control system with a lean mixture sensor.
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