Patent US4243454A successfully refreshed from Google Patents.
Patent US3916840A successfully refreshed from Google Patents.
US3916840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion engine having a cylinder comprising a combustion chamber and an ante-chamber
Assignee: Volkswagen AG
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Filing: 1971-08-27
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Granted: 1975-11-04
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Expires: 1991-08-27
Abstract
Abstract In a motor vehicle, an engine with a plurality of cylinders each comprising a combustion chamber having an inlet valve for the feeding of a fuel mixture thereto and an ante-chamber communicating with the combustion chamber and having an injection nozzle associated therewith for feeding a fuel mixture into it and a spark-plug having electrodes terminating in it, the engine when operating having a characteristic line associated therewith defining a partial brake load region and another characteristic line defining a full brake load region, a mixture dosing arrangement for providing operation of the engine within the region defined by the partial brake load characteristic under filling regulation, the mixture dosing arrangement comprising means actuating the injection nozzle only upon reaching the partial load characteristic line and at high brake loads and thereby operating the engine by controlling the fuel mixture therein.
Inventors
- 👤 Istvan Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:38
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/10; F02B19/1019; F02B19/108; F02B19/1085; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
In a motor vehicle, an engine having a plurality of cylinders, each of said cylinders comprising a combustion chamber having an inlet valve means connected to a carburetor means for the feeding of a fuel-air mixture to said combustion chamber and an ante-chamber communicating with said combustion chamber, said ante-chamber having an injection nozzle means associated therewith for feeding fuel into said ante-chamber and a sparkplug having electrodes terminating in said ante-chamber, means for controlling said carburetor means for feeding said mixture at partial brake loads of said engine on a range between a minimum and a maximum filling of said chambers and providing operating of said engine at brake loads below said partial brake loads by controlling the amount of mixture fed to said chambers, and means actuating said injection nozzle means when said partial brake loads go over to higher brake loads by controlling the amount of fuel fed by said fuel injection nozzle means, said control means of said carburetor means remaining effective at a maximum filliNg position during said higher brake loads:
Claim 2
Dependent Claim
176 words
In a motor vehicle, an engine having a plurality of cylinders, each of said cylinders comprising a combustion chamber having an inlet valve means connected to a carburetor means for the feeding of a fuel-air mixture to said combustion chamber and an ante-chamber communicating with said combustion chamber, said ante-chamber having an injection nozzle means associated therewith for feeding fuel into said ante-chamber and a sparkplug having electrodes terminating in said ante-chamber, means for controlling said carburetor means for feeding said mixture at partial brake loads of said engine on a range between a minimum and a maximum filling of said chambers and providing operating of said engine at brake loads below said partial brake loads by controlling the amount of mixture fed to said chambers, and means actuating said injection nozzle means when said partial brake loads go over to higher brake loads by controlling the amount of fuel fed by said fuel injection nozzle means, said control means of said carburetor means remaining effective at a maximum filliNg position during said higher brake loads:
Claim 3
Dependent Claim
32 words
The combination as claimed in claim 1, wherein said partial brake loads lie in the lower region of the engine revolutions and equal at least one fourth of the full brake loads.
Claim 4
Dependent Claim
43 words
The combination as claimed in claim 1, wherein said carburetor means comprises a throttle valve means having a drive means, said drive means fully opening said throttle valve means at brake loads corresponding to said partial brake loads and said higher brake loads.
Claim 5
Dependent Claim
65 words
The combination as claimed in claim 1, comprising a fuel pump means and a fuel distributor means distributing the fuel to the injection nozzles of the different cylinders, a valve means placed between said fuel pump means and said distributor means and having an operating mechanism for opening said associated valve means when said partial brake loads has been exceeded toward said higher brake loads.
Claim 6
Dependent Claim
21 words
The combination as claimed in claim 4, wherein said operating mechanism is coupled with said means for controlling said carburetor means.
Claim 7
Dependent Claim
44 words
The combination as claimed in claim 1, wherein during said filling control a mixture having an air excess number is fed to said engine at which the damaging components in the exhaust gas remain practically constant at an increase of the air excess number.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |