{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8505581","patent":{"patent_number":"US-8505581","title":"Pressure compensated electromagnetic proportional directional flow control valve","assignee":null,"inventors":[],"filing_date":"2010-06-17T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["G05D"],"num_claims":9,"abstract":"A pressure compensated electromagnetic proportional directional flow control valve of the present invention integrally includes: an electromagnetic proportional directional flow control valve configured to be driven by a solenoid; and a pressure compensated valve configured to carry out pressure compensation of a flow rate controlled by the electromagnetic proportional directional flow control valve. A pressure compensation spool moves so as to balance forces of a spring, a first pressure chamber, and a second pressure chamber. With this, the pressure compensation for maintaining a constant pressure difference between an upstream side and a downstream side of a first variable aperture can be carried out, and a surplus liquid of a liquid flowing from a liquid-pressure supply port to a derivation port can flow out from a branch port to outside."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pressure compensated electromagnetic proportional directional flow control valve","description":"A pressure compensated electromagnetic proportional directional flow control valve of the present invention integrally includes: an electromagnetic proportional directional flow control valve configur","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8505581","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8505581","citation_suggestion":"Patentable. \"Pressure compensated electromagnetic proportional directional flow control valve\" (US-8505581). https://patentable.app/patents/US-8505581","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8505581","json":"https://patentable.app/api/llm-context/US-8505581","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:20:52.241Z"}