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:
Feb. 24, 1981
Filed:
Feb. 02, 1979
Wolfgang Scheidel, Buhl, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A radial blower, preferably for blowing air through a heat exchanger or air conditioner in a motor vehicle, mainly comprises an impeller wheel preferably directly driven by an electric motor, wherein the driven impeller wheel is mounted in a housing, the peripheral wall of which spirally approaches the outer periphery of the impeller wheel and passes at the outlet of the housing over in a so-called tongue delimiting the outlet at one side, in which the shortest distance between the outer periphery of the impeller wheel and the peripheral housing wall is located downstream of the tip of the tongue, as considered in the direction of rotation of the impeller wheel. The tip of the tongue is formed by a sector of a circular cylinder and the housing has between the region of the shortest distance of the housing wall from the circumference of the impeller wheel a planar wall portion which is tangential to the spirally formed portion of the housing and the sector of the circular cylinder forming the tip of the tongue.