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. 06, 2003
Filed:
Dec. 18, 1998
Edward J. Nemie, Jr., Newport News, VA (US);
Siemens Automotive Corporation, Auburn Hills, MI (US);
Abstract
A flow master for testing a leak test head includes a housing having an upper body portion and a lower body portion, the housing defining a passageway therethrough, the housing further defining an internal volume substantially equal to a fuel volume of a fuel injector to be tested; and a porous metal flow restrictor disposed in the passageway. A method of testing a leak test head includes providing a flow master; measuring a flow rate of the flow master from a known standard; connecting the flow master to the leak test head; pressurizing the leak test head; measuring a flow rate through the flow master using the leak test head; and comparing the flow rate measured by the leak test head to the flow rate measured by the known standard to determine if the leak test head is accurate.