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. 22, 1989
Filed:
Aug. 26, 1988
Alfred Knauer, Stuttgart, DE;
Ulrich Projahn, Ditzingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A pilot burner for a device for burning off solid particles, in particular soot particles, in the exhaust gas of internal combustion engines has a hollow-cylindrical mixture preparation chamber receiving a glow element and a hollow-cylindrical glow plug receiving chamber extending transversely to it and communicating with it through an opening. A fuel inflow line discharges into the receiving chamber and an air supply line discharges into the preparation chamber. To improve mixture preparation and largely avoid carbonization of the glow plug, the glow plug is coaxially surrounded in the vicinity of its coil at a radial distance by a protective sleeve. The fuel inflow line ends at an orifice fitting that protrudes radially into the receiving chamber and discharges immediately in front of the protective sleeve.