Patent US5950586A successfully refreshed from Google Patents.
US5950586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conduction system for a vehicle
Assignee: Robert Bosch GmbH
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Filing: 1996-12-20
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Granted: 1999-09-14
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Expires: 2016-12-20
Abstract
Abstract An air duct system of an internal combustion engine comprising various components disposed at various points in the engine compartment of the motor vehicle. The air duct system includes a gas guide chamber that leads through the air duct system via a course such that only a small total installation space is needed. Part of the air duct system is curved, and the curved region has another part of the gas guide chamber that passes through it. The air duct system is intended in particular for an internal combustion engine of a motor vehicle.
Inventors
- 👤 Peter Ropertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:25
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/104; F02M35/112; F02B; F02B27/00; F02B27/005; F02F; F02F7/00; F02F7/006; F02M35/10091; F02M35/10111; F02M35/10242; F02M35/10288; F02M35/1034; F02M35/10354; F02M35/02; F02M35/10209; F02M35/10216; F05; F05C; F05C2225/00; F05C2225/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
123 words
An air duct system, for an internal combustion engine comprising at least two combustion chambers with at least one gas inlet opening leading into the combustion chamber, an air inlet opening (16), having an outlet opening (18) connected to the gas inlet opening of the combustion chamber, a gas guide chamber (20) which carries air from the air inlet opening (16) to the outlet opening (18), the gas guide chamber (20) has at least one spirally shaped curved region (40) which is divided into at least two conduits (32, 32a, 32b, 32c) and one interpenetrating region (38) that is made to at least partly penetrate the spirally shaped curved region (40) and to pass at least partly between the at least two conduits.
Claim 2
Dependent Claim
123 words
An air duct system, for an internal combustion engine comprising at least two combustion chambers with at least one gas inlet opening leading into the combustion chamber, an air inlet opening (16), having an outlet opening (18) connected to the gas inlet opening of the combustion chamber, a gas guide chamber (20) which carries air from the air inlet opening (16) to the outlet opening (18), the gas guide chamber (20) has at least one spirally shaped curved region (40) which is divided into at least two conduits (32, 32a, 32b, 32c) and one interpenetrating region (38) that is made to at least partly penetrate the spirally shaped curved region (40) and to pass at least partly between the at least two conduits.
Claim 3
Dependent Claim
25 words
An air duct system in accordance with claim 1, in which the spirally shaped curved region (40) is located downstream of the interpenetrating region (38).
Claim 4
Dependent Claim
24 words
An air duct system in accordance with claim 1, in which the spirally shaped curved region (40) adjoins the outlet opening (18) upstream thereof.
Claim 5
Dependent Claim
24 words
An air duct system in accordance with claim 2, in which the spirally shaped curved region (40) adjoins the outlet opening (18) upstream thereof.
Claim 6
Dependent Claim
23 words
An air duct system in accordance with claim 1, in which the interpenetrating region (38) adjoins the air inlet opening (16) downstream thereof.
Claim 7
Dependent Claim
28 words
An air duct system in accordance with claim 1, in which an air filter (56) is provided between the air inlet opening (16) and the outlet opening (18).
Claim 8
Dependent Claim
29 words
An air duct system in accordance with claim 6, in which the air filter (56) is provided between the interpenetrating region (38) and the spirally shaped curved region (40).
Claim 9
Dependent Claim
27 words
An air duct system in accordance with claim 1, in which a throttle device (29) is provided between the air inlet opening (16) and outlet opening (18).
Claim 10
Dependent Claim
29 words
An air duct system in accordance with claim 8, in which the throttle device (29) is provided between the interpenetrating region (38) and the spirally shaped curved region (40).
Claim 11
Dependent Claim
23 words
An air duct system in accordance with claim 8, in which the throttle device (29) is provided downstream of the air filter (56).
Claim 12
Dependent Claim
23 words
An air duct system in accordance with claim 9, in which the throttle device (29) is provided downstream of the air filter (56).
Claim 13
Dependent Claim
27 words
An air duct system in accordance with claim 1, in which an intermediate tube (8) connects the interpenetrating region (38) with the spirally shaped curved region (40).
Claim 14
Dependent Claim
49 words
An air duct system in accordance with claim 1, in which the engine has a chamber (48) closed off with the aid of a cylinder head hood (50), and at least part of the cylinder head hood (50) forms at least one portion of the gas guide chamber (20).
Claim 15
Dependent Claim
23 words
An air duct system in accordance with claim 6, in which the air filter (56) is carried by the cylinder head hood (50).
Claim 16
Dependent Claim
23 words
An air duct system in accordance with claim 7, in which the air filter (56) is carried by the cylinder head hood (50).
Claim 17
Dependent Claim
24 words
An air duct system in accordance with claim 6, in which the cylinder head hood (50) is intended to carry an ignition device (11).
Claim 18
Dependent Claim
24 words
An air duct system in accordance with claim 7, in which the cylinder head hood (50) is intended to carry an ignition device (11).
Claim 19
Dependent Claim
43 words
An air duct system in accordance with claim 1, in which a design hood (10) at least partially covering the engine is provided, and at least part of the design hood (10) surrounds at least a portion of the gas guide chamber (20).
Claim 20
Dependent Claim
43 words
An air duct system in accordance with claim 2, in which a design hood (10) at least partially covering the engine is provided, and at least part of the design hood (10) surrounds at least a portion of the gas guide chamber (20).
Claim 21
Dependent Claim
43 words
An air duct system in accordance with claim 3, in which a design hood (10) at least partially covering the engine is provided, and at least part of the design hood (10) surrounds at least a portion of the gas guide chamber (20).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-13 | 2003-03-15 | 2003-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-13 | 2007-03-15 | 2007-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-13 | 2011-03-15 | 2011-09-14 | $7700.00 | Window Closed / Lapsed |