{"publication_id":"OT-2026-000000045","uuid":"01a0a4e3-73cd-7382-9414-394f1c492fd0","title":"Pneumatic Cylinder Exhaust Energy Recovery to Low-Pressure Ring Main","abstract":"This disclosure describes a system for recovering compressed air from the exhaust port of a pneumatic cylinder and directing it into a low-pressure ring main. The arrangement addresses the significant energy loss inherent in conventional pneumatic systems, where exhaust air is typically vented to atmosphere. It details a recovery circuit that manages pressure levels, mitigating the impact on cylinder return speed, and outlines the conditions under which such a system offers a beneficial energy return. The recovered air can then be used by other low-pressure pneumatic consumers within an industrial facility, thereby reducing overall compressed air generation requirements.","language":"en","published_at":"2026-09-15T11:46:04.879665Z","canonical_url":"https://opentechnical.org/p/OT-2026-000000045","status":"PUBLIC","supersedes":null,"keywords":["fluid power","pneumatic cylinder","energy recovery","low pressure","compressed air","ring main","exhaust","pressure regulation","check valve","directional valve"],"extent":{"words":2788,"paragraphs":24,"figures":2},"hashes":{"canonical_text_sha256":"7a0c39363bdf3b698753c00da0560052d916663ef2e2c7295c1c33b83222dce1","html_sha256":"29645a3938bf630186523c836d78932a0c00daa23b7d3e225e10fe406c8afad9","pdf_sha256":"3da2282527154283bb48d9f0991ed409bd7b0301684e069b8a0bafa3036c700f","markdown_sha256":"db708d4541c4192803f9de52d853e534fc7d5652e0f5507f0b2ec7b3560ccd07","manifest_sha256":"be23058ebb4fb9d82294823c28184d178c9ea577279c15586cd497412501a7d0"},"links":{"html":"https://opentechnical.org/p/OT-2026-000000045","text":"https://opentechnical.org/p/OT-2026-000000045/publication.txt","markdown":"https://opentechnical.org/p/OT-2026-000000045/publication.md","pdf":"https://opentechnical.org/p/OT-2026-000000045/publication.pdf","manifest":"https://opentechnical.org/p/OT-2026-000000045/manifest.json","signature":"https://opentechnical.org/p/OT-2026-000000045/manifest.sig","integrity":"https://opentechnical.org/p/OT-2026-000000045/integrity"},"categories":[{"category_id":"CAT-000000233","path":"industrial-motion-power-transmission/fluid-power/energy-recovery","name":"Energy Recovery","primary":true},{"category_id":"CAT-000000323","path":"industrial-components-safety-infrastructure/plant-utilities/compressed-air-systems","name":"Compressed Air Systems","primary":false},{"category_id":"CAT-000000206","path":"industrial-motion-power-transmission","name":"Industrial Motion & Power Transmission","primary":false},{"category_id":"CAT-000000229","path":"industrial-motion-power-transmission/fluid-power","name":"Fluid Power","primary":false}]}