U.S. patent application number 10/620741 was filed with the patent office on 2004-06-10 for integrated intake manifold and heat exchanger.
Invention is credited to Wizgall, Eberhard.
Application Number | 20040110429 10/620741 |
Document ID | / |
Family ID | 32474848 |
Filed Date | 2004-06-10 |
United States Patent
Application |
20040110429 |
Kind Code |
A1 |
Wizgall, Eberhard |
June 10, 2004 |
Integrated intake manifold and heat exchanger
Abstract
Intake manifold for an internal combustion engine with a heat
exchanger fastened to the intake manifold. An internal combustion
engine characterized by a heat exchanger fastened to the intake
manifold.
Inventors: |
Wizgall, Eberhard;
(Illingen, DE) |
Correspondence
Address: |
INTELLECTUAL PROPERTY GROUP
FREDRIKSON & BYRON, P.A.
4000 PILLSBURY CENTER
200 SOUTH SIXTH STREET
MINNEAPOLIS
MN
55402
US
|
Family ID: |
32474848 |
Appl. No.: |
10/620741 |
Filed: |
July 16, 2003 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60450103 |
Feb 25, 2003 |
|
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Current U.S.
Class: |
440/1 ; 165/41;
165/51 |
Current CPC
Class: |
F02M 35/10078 20130101;
B63H 21/14 20130101; F01P 3/04 20130101; F01P 3/207 20130101; F02M
35/10032 20130101; F01P 2050/06 20130101; F02M 35/10288 20130101;
F02M 35/10111 20130101; F02M 35/10268 20130101; F01P 2070/52
20130101; F28F 9/002 20130101 |
Class at
Publication: |
440/001 ;
165/041; 165/051 |
International
Class: |
F28F 001/00; F01P
001/00; B63H 021/22; B63H 023/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 26, 2002 |
DE |
102 35 190.2 |
Claims
What is claimed is:
1. An assembly comprising: an engine; and a holding fixture coupled
to the engine, the holding fixture having a surface for mounting a
heat exchanger thereto.
2. The assembly according to claim 1 wherein the mounting surface
of the holding fixture has a C shape.
3. The assembly according to claim 1 wherein the holding fixture is
fitted with reinforcement fins.
4. The assembly according to claim 1 further comprising a pair of
straps for securing the heat exchanger to the holding fixture.
5. The assembly according to claim 4 further comprising vibration
dampening elements located between the heat exchanger and the
straps.
6. The assembly according to claim 5 wherein the vibration
dampening elements are rubber strips.
7. The assembly according to claim 1 wherein the holding fixture is
directly coupled to an input manifold of the engine.
8. The assembly according to claim 7 wherein the holding fixture is
integral with the intake manifold.
9. The assembly according to claim 7 wherein the holding fixture is
separate from the intake manifold.
10. The assembly according to claim 1 wherein the surface for
mounting the heat exchanger is complementary to the shape of the
heat exchanger.
11. An assembly comprising: a heat exchanger mounting bracket
coupled to an engine, the heat exchanger mounting bracket
comprising: a seat section configured to accommodate an exterior
surface of the heat exchanger, the seat section located on a side
of the engine.
12. The assembly according to claim 11 wherein the seat section has
a C shape.
13. The assembly according to claim 11 wherein the mounting bracket
is fitted with reinforcement fins.
14. The assembly according to claim 13 further comprising a pair of
straps for securing the heat exchanger to the mounting bracket.
15. The assembly according to claim 14 further comprising vibration
dampening elements located between the heat exchanger and the
straps.
16. The assembly according to claim 15 wherein the vibration
dampening elements are rubber strips.
17. The assembly according to claim 11 wherein the mounting bracket
is directly coupled to an input manifold of the engine.
18. The according to claim 17 wherein the mounting bracket is
integral with the intake manifold.
19. The assembly according to claim 17 wherein the mounting bracket
is separate from the intake manifold.
20. The assembly according to claim 11 wherein the surface for
mounting the heat exchanger is complementary to the shape of the
heat exchanger.
21. A watercraft comprising: a hull; a deck located I the hull; a
propulsion device carried by the hull for propelling the
watercraft; an engine positioned within the hull, the engine
driving the propulsion device; and a heat exchanger mounting
bracket coupled to the engine, the heat exchanger mounting bracket
having a seat section configured to accommodate an exterior surface
of the heat exchanger, the seat section located on a side of the
engine.
Description
RELATED APPLICATIONS
[0001] This application is related to and claims priority to U.S.
Provisional Patent Application No. 60/450,103, filed on Feb. 25,
2003, the entire disclosure of which is hereby incorporated by
reference.
[0002] This application is also related to and claims priority to
German Patent Application No. 102 35 190.2, filed on Jul. 26, 2002,
the entire disclosure of which is hereby incorporated by
reference.
FIELD OF THE INVENTION
[0003] The present invention relates generally to integrating a
heat exchanger with an intake manifold. More particularly, the
present invention relates to an intake manifold connected to a heat
exchanger for an internal combustion engine for marine
applications.
BACKGROUND OF THE INVENTION
[0004] With internal combustion engines, the waste heat developed
in the engine must be reliably transferred to the surroundings
under all conditions via suitable cooling means. With internal
combustion engines for marine applications, especially internal
combustion engines for watercraft, boats or recreational sporting
equipment such as personal watercraft, cooling takes place either
directly through the ocean/lake water in an open-loop cooling
circuit, or through a closed-loop cooling circuit with a cooling
agent/ocean water heat exchanger. For known internal combustion
engines with closed loop cooling circuits, the heat exchanger is
mounted to the chassis or hull.
SUMMARY OF THE INVENTION
[0005] According to the invention, the heat exchanger is no longer
tightly attached to the boat, but to the engine. For this design,
the invention provides for a holding fixture useful for supporting
a heat exchanger attached to, or integrated with, an intake
manifold of an internal combustion engine.
[0006] Thus, according to the invention, the heat exchanger is
attached directly to the air intake manifold of the internal
combustion engine. This is advantageous because previously required
additional holders are no longer necessary and an additional
interface between engine and boat, with costly hosing and line
arrangement, is avoided.
[0007] By preference, the intake manifold subject to the invention
has a holding device to support the heat exchanger. This design
allows the holding device to be formed as a single piece with the
intake manifold, minimizing the assembly effort.
[0008] To achieve best possible seating of the heat exchanger in
the holding device of the intake manifold, the holding device, in
accordance with the design of the invention, has a support with its
form adapted to that of the heat exchanger for positive-locking of
the heat exchanger in the holding device. To reduce vibrations,
vibration-damping elements can be included in the holding
device.
[0009] As a further particular design advantage of the invention,
the holding device of the intake manifold subject to the invention
is, at the same time, also shaped as a support element to support
the intake manifold on an engine block of the internal combustion
engine. Thus, the holding device fulfills the additional purpose of
a support for the intake manifold against the engine block. This
design increases the stability of the engine layout and suppresses
vibrations. As a design advantage, the holding device is fitted
with reinforcement fins.
DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is a perspective view of the intake manifold and heat
exchanger emphasizing the capacity buffer and heat exchanger.
[0011] FIG. 2 is a perspective view of the intake manifold and heat
exchanger emphasizing the holding device.
[0012] FIG. 3 is a different perspective view of the intake
manifold and heat exchanger emphasizing the holding device.
DETAILED DESCRIPTION
[0013] The invention provides for an intake manifold 10 for an
internal combustion engine, characterized by a heat exchanger 50
that is connected to the intake manifold 10, and an internal
combustion engine for marine applications with the heat exchanger
50 connected to the intake manifold 10. The intake manifold 10 of
an internal combustion engine may be characterized by a holding
fixture 30 to support the heat exchanger 50. The holding fixture 30
may be formed as a single piece with the intake manifold 10. In
order to achieve a form-fit support of the heat exchanger 50 in the
holding fixture 30, the contours of the holding fixture 36, 38 may
be adapted to the shape of the heat exchanger 50. Concurrently, the
holding fixture 30 may be formed as a supporting element 46 for
support of the intake manifold 10 to an engine block of the
internal combustion engine.
[0014] As an example version of the invention, FIG. 1 schematically
represents the intake manifold 10 with a capacity buffer 12, from
which two curved suction arms 14 project upwards as shown in FIG.
1. On the ends facing away from the intake plenum or capacity
buffer 12, the intake runners or passages 14 are fitted with
flanges 16 for connection of the intake manifold 10 to an engine
(not shown). Located on the capacity buffer 12 between the two
suction arms 14 is an opening with a flange 18 used for connection
of a (not shown) throttle unit. Further provided on the capacity
buffer 12, are openings and flanges 20, 22, which are intended for
a pressure connection and the connection of a temperature
sensor.
[0015] Below the capacity buffer 12 of the intake manifold 10, the
holding device 30 subject to the invention projects off of the
capacity buffer 12, which is preferably shaped as a single unit
with the intake manifold 10, as shown in FIG. 2.
[0016] The base corpus 32 of the holding device 30 consists
primarily of two side walls 34 that face downward from the capacity
buffer 12 and generally have a C-shaped base surface. In the upper
and lower section of the C-shape on the side walls 34 are concave
surfaces that form the seat 36, 38 for a primarily cylinder-shaped
heat exchanger 50. The concave surfaces within the area from the
C-ends of the holding device 30 can be formed separately as in FIG.
3, or connected with each other as in FIG. 2. Additionally, the
holding device 30 is fitted with several reinforcement fins 40 to
increase stability.
[0017] For attachment of the heat exchanger 50 in the seat 36, 38
of the holding fixture 30, straps as well as clamps 42 are provided
for as shown in FIG. 1. In order to reduce vibrations, rubber
matting or rubber straps 44 can be placed under the attachment
clamps 42 as indicated in FIG. 1. In the same manner, the concave
surfaces of the seat 36, 38 can be laid out with rubber
linings.
[0018] On the side facing away from the heat exchanger 50, the
holding device 30, according to the invention, is designed to be
supported against an engine block of the (not shown) internal
combustion engine. For this purpose, the edges 46 from the side
walls 34 of the holding device 30 pointing away from the heat
exchanger 50 as well as the struts 48 arranged in between are
adapted in their form so that a positive form-fit is achieved. At
its lowest point, the holding device 30 is fitted with a bore 49,
which is used to bolt it together with the engine block.
[0019] The heat exchanger 50 has similar connections 52, 54 for
intake and outlet of ocean/lake water, as well as connections 56,
58 for intake and outlet of cooling agent.
* * * * *