Integrated inlet manifold/throttle valve chamber unit

Details Integrated inlet manifold/throttle valve chamber unit Integrated inlet manifold/throttle valve chamber unit

1999-09-14

2001-02-06

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Intake manifold

C123S337000

Reexamination Certificate

active

06182628

ABSTRACT:

FIELD OF THE INVENTION
The present invention concerns the field of vehicles with heat engines, more particularly cars, and relates to an integrated inlet manifold/throttle valve chamber unit for vehicles of the aforementioned type.
BACKGROUND OF THE INVENTION
At present, the inlet manifold or air distributor and the throttle valve chamber or choke chamber form two distinct structural entities, the outlet of the throttle valve chamber being connected to the fresh air intake or feed orifice of the inlet manifold by a portion of connecting conduit or tube which also allows, if necessary, the mounting and fixing of said throttle valve chamber.
However, the aforementioned current make-up has various drawbacks which manufacturers and users would like to eliminate.
Thus, the make-up in two structural entities results in considerable bulkiness, in particular in the direction of alignment of the two entities, creates a mechanical weakened zone (connection between the two entities), which may become critical in view of the vibrating environment in particular, creates several dispersed sealing zones subjected to mechanical stresses and necessitates separate management and supply for each of the two entities.
SUMMARY OF THE INVENTION
It is accordingly the object of the present invention to overcome the various aforementioned drawbacks.
To this end, it relates to an inlet manifold/throttle valve chamber unit for a vehicle comprising a heat engine, characterised in that a module for adjusting the passage cross section is attached in the region of the fresh air feed orifice of an inlet manifold so as to form an integrated inlet manifold/throttle valve chamber unit.


REFERENCES:
patent: 5158045 (1992-10-01), Arthur et al.
patent: 5341773 (1994-08-01), Schulte et al.
patent: 42 29 408 (1993-08-01), None
patent: 196 26 251 (1998-01-01), None

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