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Vehicular Air Compressor Development in Relation to Engine Development, Vehicle Design and Brake System Security
Technical Paper
785136
Sector:
Language:
German
Abstract
Design advances of air compressors for buses and trucks are
reviewed. Volumetric delivery, supplied pressure, and heat removal
are discussed in detail. Results show that the single-cylinder air
compressor with a delivery of 500 1/min at 10 bar will retain its
dominant position in industrial use for years to come. Present
design limits displacement to about 300 cm3.
New designs of valve-plate cooling have raised previous
limitations of compressor performance, which may be necessitated by
increased use of compressed air for auxiliary purposes.
Single-stage delivery can now provide 20 bar, and replacement of
ring plate valves allow compressor speeds above 3000 rpm. Operating
temperature improvements are discussed in terms of various
heat-transfer mechanisms, integrity of seals, and lessened carbon
deposition in the oil line. Several variations of the new design
are presented and performance characteristics are compared to
conventional models.
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