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F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02D—CONTROLLING COMBUSTION ENGINES
F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/00—Road transport of goods or passengers
Y02T10/10—Internal combustion engine [ICE] based vehicles
Y02T10/12—Improving ICE efficiencies
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FR710487D1930-01-211931-01-09Perfectionnements dans les mécanismes des soupapes pour moteurs, pompes, etc., à pression fluide
ExpiredFR710487A
(fr)