Process and apparatus for producing a linkage of an air/fuel ratio detector holder to an exhaust pipe
First Claim
1. Process for producing a linkage of a hollow cylindrical air/fuel ratio detector holder to an exhaust pipe having an opening for admitting exhaust gas to an air/fuel ratio detector fastened in the holder, comprising providing a desired finished shape of the exhaust pipe through internal high-pressure remodeling of a blank pipe, and creating thereby a concave contact surface formed on a portion of the exhaust pipe so as to have an inverted contact contour shape complimentary to a convex casing surface of the detector holder.
5 Assignments
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Accused Products
Abstract
A process and a device produces a linkage of a hollow cylindrical air/fuel ratio detector holder to an opening for the impingement of the air/fuel ratio detector, which is fastened into the holder, to an exhaust pipe equipped with exhaust gas. A desired finished shape is given through internal high-pressure remodeling of a blank pipe. During this process, internal high-pressure remodeling creates a contact surface on the exhaust pipe which is formed by a buckling. The contact surface is created in the inverted shape of the contact contour of the casing surface of the holder so that a dimensionally stable linkage of an air/fuel ratio detector holder to an exhaust pipe is achieved simply.
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Citations
8 Claims
- 1. Process for producing a linkage of a hollow cylindrical air/fuel ratio detector holder to an exhaust pipe having an opening for admitting exhaust gas to an air/fuel ratio detector fastened in the holder, comprising providing a desired finished shape of the exhaust pipe through internal high-pressure remodeling of a blank pipe, and creating thereby a concave contact surface formed on a portion of the exhaust pipe so as to have an inverted contact contour shape complimentary to a convex casing surface of the detector holder.
Specification