US4440124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Robert Bosch GmbH
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Filing: 1982-08-23
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Granted: 1984-04-03
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Expires: 2002-08-23
Abstract
Abstract An internal combustion engine has a cylinder with a movable piston and a cylinder head, a main combustion chamber and an additional combustion chamber, elements producing a twisted stream rotating about an axis of the additional combustion chamber, an injecting nozzle opening in an aspirating passage, and an external igniting device, wherein the injecting nozzle is formed as a single-hole injecting nozzle and has an injection hole which is directed substantially against the igniting device.
Inventors
- 👤 Konrad Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:06
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/12; F02B19/10; F02B19/1019; F02B19/108; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
An internal combustion engine, comprising at least one cylinder; a piston movable in said cylinder; a cylinder head connected with said cylinder; an aspiration passage; an inlet valve movable between open and closed positions; a combustion chamber formed on said piston at a side of said cylinder head; an additional combustion chamber form in said cylinder head between said first mentioned combustion chamber and said inlet valve and having an axis and a circular periphery; means for producing a twisted stream rotating about said axis; an injecting nozzle which opens in said aspirating passage and is arranged to inject fuel into said additional combustion chamber via said inlet valve in its open position; and external igniting means arranged in the region of said periphery of said additional combustion chamber, said injecting nozzle being formed as a single-hole nozzle and having an injection hole which is directed substantially against said igniting means.
Claim 2
Dependent Claim
151 words
An internal combustion engine, comprising at least one cylinder; a piston movable in said cylinder; a cylinder head connected with said cylinder; an aspiration passage; an inlet valve movable between open and closed positions; a combustion chamber formed on said piston at a side of said cylinder head; an additional combustion chamber form in said cylinder head between said first mentioned combustion chamber and said inlet valve and having an axis and a circular periphery; means for producing a twisted stream rotating about said axis; an injecting nozzle which opens in said aspirating passage and is arranged to inject fuel into said additional combustion chamber via said inlet valve in its open position; and external igniting means arranged in the region of said periphery of said additional combustion chamber, said injecting nozzle being formed as a single-hole nozzle and having an injection hole which is directed substantially against said igniting means.
Claim 3
Dependent Claim
29 words
An internal combustion engine as defined in claim 1, wherein said igniting means includes an ignition plug having electrodes which extend at the periphery of said additional combustion chamber.
Claim 4
Dependent Claim
38 words
An internal combustion engine as defined in claim 1, wherein said additional combustion chamber has at its periphery a recess, said igniting means including an ignition plug with electrodes arranged in said recess of said additional combustion chamber.
Claim 5
Dependent Claim
38 words
An internal combustion engine as defined in claim 3; and further comprising means forming a hole for receiving said igniting means, said hole having an end portion which faces toward said additional combustion chamber and forms said recess.
Claim 6
Dependent Claim
34 words
An internal combustion engine as defined in claim 4, wherein said additional combustion chamber has a wall, said hole for receiving said igniting means being formed in said wall of said additional combustion chamber.
Claim 7
Dependent Claim
66 words
An internal combustion engine as defined in claim 1, wherein said igniting means is formed as an ignition chamber plug, said ignition chamber plug having a chamber with a first opening directed substantially towards said injection hole of said injecting nozzle and a second opening directed substantially toward the periphery of said additional combustion chamber and substantially in a direction of rotation of the twisted stream.
Claim 8
Dependent Claim
18 words
An internal combustion engine as defined in claim 6; and further comprising means for tempering said ignition chamber.
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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) | 1987-04-03 | 1987-10-03 | 1988-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-03 | 1991-10-03 | 1992-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-03 | 1995-10-03 | 1996-04-03 | $7700.00 | Window Closed / Lapsed |