One of the mysteries of the English language finally explained.
(of an engine) having pressure applied only to one side of the piston.
- ‘Enerpac has released a vacuum valving system that drastically improves the retraction times of single-acting heavy lift hydraulic cylinders commonly used throughout Australian industry.’
- ‘The diagram below shows the pneumatic circuit for the single-acting cylinder and three-port valve.’
- ‘Common types of compressors are single-acting piston, double-acting piston, and centrifugal.’
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