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. 01, 1984
Filed:
Dec. 10, 1981
Naoki Ogawa, Yokohama, JP;
Toshiro Abe, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An automotive internal combustion engine comprises a cylinder block having a plurality of cylinder bores and a plurality of bearing bulkheads, and a bearing beam structure secured to the bottom part of the cylinder block and including a plurality of main bearing cap sections each of which associates with each cylinder block bearing bulkhead to rotatably support the journal of a crankshaft, and two beam sections for securely connecting all the bearing cap sections, the two beam sections extending parallel with the axis of the crankshaft and being located at the opposite side portions, respectively, of each bearing cap section, thereby improving the strength of the main bearing cap sections and the cylinder block bearing bulkheads against the tortional and flexural vibrations to effectively suppress the vibrations of a cylinder block skirt section and an oil pan.