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:
Jun. 28, 2005
Filed:
Aug. 28, 2003
Kiyohisa Suzuki, Ebina, JP;
Takashi Iiya, Tokyo, JP;
Kiyohisa Suzuki, Ebina, JP;
Takashi Iiya, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In a coarse honing step in a section (), a honing head () provided with coarse honing hones () is inserted into a cylinder bore () of a cylinder block (), the honing headis rotated while axially moving it, and the inner peripheral surface of the cylinder bore () is thereby ground. In the next idling step in a section (), the cylinder block () is left as it is for () seconds to generate a springback (S). In a subsequent finishing honing step in a section (), a honing head () provided with finishing honing hones () is inserted into the cylinder bore (), the honing head () is rotated in a reverse direction to a rotational direction in the coarse honing step while axially moving it, and the inner peripheral surface of the cylinder bore () is thereby ground. Further, a coolant is supplied to the sections of the coarse honing step, the idling step, and the finishing honing step from coolant nozzles (), (), and (), respectively, using a common coolant supply source ().