Method and apparatus for manufacturing and forming engine induct

Details Method and apparatus for manufacturing and forming engine induct Method and apparatus for manufacturing and forming engine induct

1979-11-09

1981-12-22

Larson, Lowell A.

Metal deforming

With cutting

By composite tool

29157C, B21K 2108

Patent

active

043064418

ABSTRACT:
A carburetor is disclosed as being formed by die casting and in the process employing two opposed juxtaposed casting cores to form the induction passage and main venturi therein with the result that a flashing of die cast metal occurs as between the opposed juxtaposed cores generally transversely of the induction passage generally at the location of the throat of the venturi; after casting the carburetor, the carburetor is placed onto fixture means and a cutting and forming punch or tool is moved relative to the carburetor as to both cut through the said flashing and also seat against the metal of the upstream portion of the venturi in order to assure uniformity of contour thereof especially with respect to the venturi throat as cut and sized by the tool.

REFERENCES:
patent: 354412 (1886-12-01), Harrington
patent: 1040497 (1912-10-01), Bosler
patent: 2044697 (1936-06-01), Huss
patent: 2241735 (1941-05-01), Redsecker
patent: 2618989 (1952-11-01), Cupler
patent: 2737831 (1956-03-01), Webb
patent: 3399560 (1968-09-01), Connolly et al.
patent: 4081890 (1978-04-01), Bluhm, et al.

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