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:
Aug. 19, 2025
Filed:
Jun. 26, 2023
Mahle International Gmbh, Stuttgart, DE;
Mahle International GmbH, , DE;
Abstract
A hydrogen combustion engine for a passenger car is disclosed. The hydrogen combustion engine includes at least one cylinder having a combustion chamber and a metallic hollow valve for the introduction of hydrogen into the combustion chamber or for directing water out from the combustion chamber. The hollow valve comprises a tubular valve shaft extending along an axial direction, which along the axial direction passes over into a valve plate with an enlarged external diameter compared to the valve shaft. The valve shaft and the valve plate delimit a cavity, wherein a cavity diameter of the cavity, measured transversely to the axial direction in the region of the valve shaft is between 3.2 mm and 4.4 mm. A wall thickness of the hollow valve, measured transversely to the axial direction in the region of the valve shaft is between 0.8 mm and 1.4 mm.