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Priority to JP1972116977UpriorityCriticalpatent/JPS5333352Y2/ja
Publication of JPS4971992UpublicationCriticalpatent/JPS4971992U/ja
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Publication of JPS5333352Y2publicationCriticalpatent/JPS5333352Y2/ja
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
Y02T70/00—Maritime or waterways transport
Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
Y02T70/5236—Renewable or hybrid-electric solutions