Note: Descriptions are shown in the official language in which they were submitted.
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ATTACHMENT FOR EXHAUST PIPE
This invention relates to an exhaust pipe for
an internal combustion engine and more particularly to à
means of attaching the exhaust pipe to the outlet of a
supercharger and providing a means of supporting a
mufler. The exhaust pipe can be rotated to provide
infinite positioning of the exhaust pipe.
Conventional exhaust pipes of cast iron have a
machined surface to assure seal integrity in mounting
with a mating sur~ace to form an exhaust pipe coupling.
If a steel flange is used on the exhaust pipe or elbow,
the flange must be welded on the pipe to provide the
flange for sealing. If orientation of the exhaust pipe
is changed, a cast iron pipe must be drilled differently
or a flange of a welded exhaust pipe must have a
different flange welded to the pipe to accommodate any
change in positioning of the exhaust pipe.
The applicant's invention has a rolled bead on
the outer periphery of the exhaust pipe to form a seal
and allow an infinite number of positions of the exhaust
pipe by the use of two components.
U.S. patent 3,035,505, Lee, and U.S. 3,133,612,
Sailler, show exhaust pipes. The Lee patent shows a
means of trapping moisture and drainin~ the moisture
before it is allowed to enter the internal combustion
engine while the Sailler patent shows a laminated engine
exhaust pipe for sound deadening of the exhaust system.
The applicant's invention provides a coupling for
mounting of the exhaust pipe and a seal in the coupling
permitting infinite positioning of the exhaust pipe~
It is an object of this invention to provide a
mounting for an exhaust pipe of an internal combustion
engine.
It is another object of this invention to
provide a coupling for mounting of the exhaust pipe and
to provide seal integrity of the exhaust pipe coupling.
It is a further object of this invention to
provide a coupling for mounting an exhaust pipe and
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provide seal integrity between the supercharger discharge
pipe and the exhaust pipe and for supporting of a
muffler. The coupling provides for infinite positioning
of the exhaust pipe.
Summary of the Invention
The objectives of this invention are met by an
exhaust system for an internal combustion engine which
includes a supporting exhaust conduit member including a
peripheral flange defining a relatively sharp edge of
approximately 90 degrees, an exhaust pipe of resilient
material including an inlet portion received in the
conduit member and including a deformable peripheral bead
which is hollow and of greater diameter than the inlet
portion, an aligning external peripheral surEace on the
inlet portion of the exhaust pipe bearing against the
inner peripheral surface of the conduit member, a
clamping ring encompassing the exhaust pipe and axially
engaging the peripheral bead, and releasable fastening
means clamping the opposing axial sides of the peripheral
bead and pressing the edge of the flange firmly against
the bead to effect a seal at the edge between the support
member and the exhaust pipe by embedding the edge into
said bead.
Referring to the drawings, a preferred
embodiment of this invention is illustrated.
Fig. 1 illustrates a side elevation view of a
turbo-charger and the exhaust pipe mounting.
Fig. 2 is an end view of the turbo-charger
showing the exhaust pipe mounting and a support for a
muffler.
Fig. 3 is a cross section view of the
turbo-charger supporting flange, the exhaust pipe and a
clamping ring forming a coupling.
Referring to the drawings, the turbo-charger 1
is mounted on an engine 2. Exhaust gas is supplied
through the conduit 3 to the turbine 4 which drives the
compressor 5 compressing air in the conduit 60 which
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leads to the intake manifold. The turbine 4 allows
exhaust gas to expand and then delivers exhaust gas to
the discharge conduit 6. Discharge conduit 6 is
connected to the exhaust pipe 7 which supports a muffler
8 for the engine. The turbo-charger discharge conduit 6
is integral with the flange 9 which embraces the exhaust
pipe inlet 10 of the exhaust pipe 7. The bead 11 is a
rolled bead rolled from the inside forming a raised ridge
around the periphery of the exhaust pipe. A portion 12
of the exhaust pipe 7 extends to the elbow 13. This
clamping ring 14 is fastened by a plurality of bolts 15
and nuts 16 which clamp the flange 9 and clamping ring 14
firmly against the bead 11 to form seal integrity between
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the discharge conduit 6 of the turbo charger l and the
exhaust pipe 7. The exhaust pipe can be rotated to any
position desired by merely loosening the bolts and nuts
on the clamping ring 14 and rotating the exhaust pipe.
By tightening of the bolts, a positive seal in the
re-oriented position is achieved. Since the bolts 15 do
not extend through a flange integral with the exhaust
pipe, but merely extend through a clamping ring, infinite
positioning of the exhaust pipe is possible.
The device operates in the following described
manner. The exhaust pipe 7 is positioned in the turbo-
charger discharge conduit 6 and assembled with the bead
11 contacting the flange 9 of the turbo-charger dischar:ge
conduit. The clamping ring 14 is positioned over the
exhaust pipe and similarly abuts against the outer
surface of the bead 11. Bolting of the clamp ring 14 to
the flange 9 assures a fixed position of the exhaust pipe
7 and seal integrity because of the firm contact between
the flange 9 and the bead 11. Repositioning of the
exhaust pipe by rotation of the pipe is easily
accomplished by loosening the bolts 15 and rotating the
exhaust pipe to the desired orientation. The mounting of
an exhaust pipe in this manner eliminates any need for
welding a flange to the exhaust pipe of a steel pipe for
mounting of the pipe and permits the versatility of
orientation of the pipe as desired. In contrast, the
conventional cast iron exhaust requires drilling of holes
to accommodate the bolts 15, and limits the positioning
of the exhaust pipe. With the applicant's invention, the
exhaust pipe is capable of infinite positionin3 to
accommodate orientation of the pipe and the muffler on
the engine.
