The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Mar. 15, 2022
Avl List Gmbh, Graz, AT;
Martin Zapf, Au Bei Turnau, AT;
Jürgen Gelter, Graz, AT;
AVL LIST GMBH, Graz, AT;
Abstract
The invention relates to a liquid-cooled internal combustion engine, comprising:—a cylinder head having a top-down cooling concept, with a head cooling chamber with a first head partial cooling chamber spaced apart from the fire deck and with a second head partial cooling chamber, which adjoins the fire deck of the cylinder head and is separated from the first head partial cooling chamber by an intermediate deck, the first head partial cooling chamber and the second head partial cooling chamber being fluidically interconnected, in the region of a central component, by means of a passage channel in the intermediate deck;—a main feed channel, which is disposed in the cylinder block and is connected to the first head partial cooling chamber by means of a first flow passage in the fire deck of the cylinder head and by means of a supply channel;—a block cooling jacket, which is fluidically connected to the second head partial cooling chamber by means of a second flow passage in the fire deck of the cylinder head. According to the invention, in order to improve the cooling, the block cooling jacket has a first block partial cooling jacket, which is near the fire deck and into which the second flow passage leads, and a second block partial cooling jacket, which is separated from the first block partial cooling jacket and is remote from the fire deck, the first block cooling jacket being fluidically connected to the second block cooling jacket by means of a third flow passage which is diametrically opposite the second flow passage, and the second block partial cooling jacket being connected to a main discharge channel which is disposed in the cylinder block.