Patent US3592172A successfully refreshed from Google Patents.
US3592172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion reciprocating engine
Assignee: Individual
•
Filing: 1969-01-28
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Granted: 1971-07-13
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Expires: 1989-01-28
Abstract
Abstract An internal combustion reciprocating engine having a substantially round combustion chamber in one side of the cylinder at the top thereof and formed partly in the cylinder and partly in the piston near the upper end thereof. The combustion chamber is preferably spherical, although it may be drum shaped. Fuel is sprayed into the combustion chamber, directed away from the relatively cool combustion chamber walls and preferably toward the cylinder head, and is ignited during the early part of the fuel injection period by any of many artificial ignition means, such as a spark, stream of sparks, hot sparks, glow plug, cold plug, torch, hot spot or pin, various kinds of catalysts, etc. The top of the piston and top of the cylinder are both located at an angle to the axis of the cylinder, with the long side of the piston and the cylinder on the combustion chamber side. Movement of the piston produces high turbulence of the combustion air equivalent to 1 1/2 to 5 revolutions of eddying of the air past the fuel spray nozzle during the maximum duration of fuel injection.
Inventors
- 👤 Otis D Treiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:11
CPC Classifications
F; F02; F02B; F02B1/00; F02B19/00; F02B19/08; F02B19/12; F02B25/00; F02B1/02; F02B1/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2720/00; F02B2720/23; F02B2720/236; F02B2720/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
177 words
An internal combustion engine including a cylinder having a bore extending therethrough, a cylinder head having a substantially flat surface closing one end of the cylinder bore, a piston reciprocating in the cylinder bore, a substantially spherical combustion chamber formed partly in the sidewall of the cylinder and the remainder in the adjacent side of the piston when the piston is at the outer end of the stroke, said substantially spherical combustion chamber being tangential to the substantially flat surface of the cylinder head, said combustion chamber containing substantially all of the combustion air at the end of the compression stroke, there being an opening in the combustion chamber adjacent to said flat surface of the cylinder head forming a passageway from the spherical chamber to the cylinder bore when the piston is on its stroke before and after its outermost portion of reciprocation, suitable means for breathing air into and exhausting gas out of the cylinder, suitable means for admitting fuel into the combustion air in the cylinder and suitable means for igniting the air-fuel mixture.
Claim 2
Dependent Claim
177 words
An internal combustion engine including a cylinder having a bore extending therethrough, a cylinder head having a substantially flat surface closing one end of the cylinder bore, a piston reciprocating in the cylinder bore, a substantially spherical combustion chamber formed partly in the sidewall of the cylinder and the remainder in the adjacent side of the piston when the piston is at the outer end of the stroke, said substantially spherical combustion chamber being tangential to the substantially flat surface of the cylinder head, said combustion chamber containing substantially all of the combustion air at the end of the compression stroke, there being an opening in the combustion chamber adjacent to said flat surface of the cylinder head forming a passageway from the spherical chamber to the cylinder bore when the piston is on its stroke before and after its outermost portion of reciprocation, suitable means for breathing air into and exhausting gas out of the cylinder, suitable means for admitting fuel into the combustion air in the cylinder and suitable means for igniting the air-fuel mixture.
Claim 3
Dependent Claim
68 words
An engine as defined in claim 1 in which the top of the piston and top of the cylinder and the bottom of the cylinder head are all located at the same angle to the axis of the cylinder whereby one side of the cylinder wall is longer than the opposite side and in which the combustion chamber is located on the long side of the cylinder wall.
Claim 4
Dependent Claim
42 words
An engine as defined in claim 1 in which the means for admitting fuel into the combustion air is a fuel spray nozzle positioned to direct the fuel spray into the combustion chamber clear of the piston and toward the cylinder head.
Claim 5
Dependent Claim
51 words
An engine as defined in claim 1 in which the means for breathing air into and exhausting gas out of the cylinder comprises an air inlet port and an exhaust port in the cylinder head and an inlet valve in said inlet port and an exhaust valve in said exhaust port.
Claim 6
Dependent Claim
68 words
An engine as defined in claim 1 in which the means for breathing air into the cylinder comprises air inlet ports in the sidewalls of the cylinder, said inlet ports being adapted to be opened near the outward stroke of the piston, and the means for exhausting gas out of the cylinder comprises an exhaust port in the cylinder head and an exhaust valve controlling said exhaust port.
Claim 7
Dependent Claim
36 words
An engine as defined in claim 1 in which the means for breathing air into and exhausting gas from the cylinder comprises an inlet port and an exhaust port located through the sidewalls of the cylinder.
Claim 8
Dependent Claim
133 words
An engine as defined in claim 1 in which there are three air inlet ports in the sidewalls of the cylinder, one of which is directly opposite the combustion chamber side with its inlet walls slanting downward toward the piston top when the piston is on its outer stroke, and the other two inlet ports arranged one on each side with their inlet walls slanting upward away from the piston to provide means for the center inlet stream to pass into the cylinder between the piston and the two airstreams from the other two air ports, which airstreams meet each other and diffuse in directions to more perfectly scavenge a cylinder of gas as the air fills the cylinder and comBustion chamber and pushes the burned gas out of the open exhaust valve.
Claim 9
Dependent Claim
140 words
An engine as defined in claim 7 in which the means for admitting fuel into the combustion chamber is a fuel spray nozzle positioned to direct the fuel spray into the combustion chamber clear of the piston and toward the cylinder head, and in which the engine is of the loop scavenging valveless type with air inlet ports in the combustion chamber side of the cylinder which are uncovered near the outward stroke of the piston to admit air under pressure into the cylinder to loop toward the top of the cylinder through and in the cylinder to purge it of burned gas, and exhaust ports on the opposite side of the cylinder positioned to open near the outward stroke of the piston but before the inlet air ports open to permit pressure blow down before the inlet ports open.
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |