US4258084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing fuel consumption by peening
Assignee: Potters Industries LLC
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Filing: 1978-10-17
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Granted: 1981-03-24
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Expires: 1998-10-17
Abstract
Abstract A method of reducing fuel and oil consumption in an internal combustion engine in which the cylinder walls of the engine are peened with glass spheres having a diameter within the range of form about 0.002 inches to about 0.004 inches. The glass spheres form a multiplicity of local depressions and surface compression at the points of impact and are directed against the cylinder walls for a period of time sufficient to form the depressions over the entire surface area without leaving flat portions of the surface between the depressions. In some embodiments the cylinder walls are coated with a lubricating agent such as graphite prior to being peened. After the peening step the walls are lightly honed to produce substantially flat supporting areas between the individual depressions.
Inventors
- 👤 Robert E. Hayden, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:46
CPC Classifications
B; B24; B24C; B24C1/00; B24C1/10; C; C21; C21D; C21D7/00; C21D7/02; C21D7/04; C21D7/06; F; F02; F02F; F02F1/00; F02F1/18; F02F1/20; F16; F16J; F16J10/00; F16J10/02; F16J10/04; F05; F05C; F05C2203/00; F05C2203/08; F05C2203/0865; F05C2203/0882; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927; Y10T29/49826; Y10T29/49885; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
137 words
A method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the method comprising the steps of: applying a lubricating agent to at least one of the relatively movable surfaces of said engine; and propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 2
Independent Claim
137 words
A method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the method comprising the steps of: applying a lubricating agent to at least one of the relatively movable surfaces of said engine; and propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 3
Independent Claim
135 words
A method of reducing fuel consumption in an internal combustion engine having relatively movable surfaces, the method comprising the steps of: applying a dry lubricant to at least one of the relatively movable surfaces of said engine; and propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 4
Independent Claim
135 words
A method of reducing fuel consumption in an internal combustion engine having relatively movable surfaces, the method comprising the steps of: applying a dry lubricant to at least one of the relatively movable surfaces of said engine; and propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 5
Independent Claim
141 words
A method of reducing frictional resistance between relatively movable surfaces, the method comprising the steps of: applying a dry lubricant to at least one of the relatively movable surfaces; propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; and lightly honing the surface to produce substantially flat supporting areas between the individual depressions.
Claim 6
Independent Claim
141 words
A method of reducing frictional resistance between relatively movable surfaces, the method comprising the steps of: applying a dry lubricant to at least one of the relatively movable surfaces; propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; and lightly honing the surface to produce substantially flat supporting areas between the individual depressions.
Claim 7
Dependent Claim
16 words
A method as defined in claim 3, in which graphite is used as the dry lubricant.
Claim 8
Dependent Claim
17 words
A method as defined in claim 3 in which molybdemum disulfide is used as the dry lubricant.
Claim 9
Independent Claim
166 words
A method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the method comprising the steps of: applying a dry lubricant to at least one of the relatively movable surfaces of said engine; propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; lightly honing the surface to produce substantially flat supporting areas between the individual depressions; and recycling said spheres by propelling the same toward another relatively movable surface of said engine.
Claim 10
Independent Claim
166 words
A method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the method comprising the steps of: applying a dry lubricant to at least one of the relatively movable surfaces of said engine; propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; lightly honing the surface to produce substantially flat supporting areas between the individual depressions; and recycling said spheres by propelling the same toward another relatively movable surface of said engine.
Claim 11
Independent Claim
139 words
A method of reducing fuel consumption in a reciprocating internal combustion engine having at least one cylinder wall with an inner cylindrical surface, the method comprising the steps of: applying a dry lubricant to the cylindrical surface of said cylinder wall; and propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 12
Independent Claim
139 words
A method of reducing fuel consumption in a reciprocating internal combustion engine having at least one cylinder wall with an inner cylindrical surface, the method comprising the steps of: applying a dry lubricant to the cylindrical surface of said cylinder wall; and propelling glass spheres toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameter of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 13
Independent Claim
154 words
A method of reducing fuel and oil consumption in an internal combustion engine having at least one cylinder wall with an inner cylindrical surface, the method comprising the steps of: applying a dry lubricant to the cylindrical surface of said cylinder wall; propelling glass sphere toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameters of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; and lightly honing the surface to produce substantially flat supporting areas between the individual depressions.
Claim 14
Independent Claim
154 words
A method of reducing fuel and oil consumption in an internal combustion engine having at least one cylinder wall with an inner cylindrical surface, the method comprising the steps of: applying a dry lubricant to the cylindrical surface of said cylinder wall; propelling glass sphere toward the thus lubricated surface at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres, the diameters of the glass spheres lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface, and the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; and lightly honing the surface to produce substantially flat supporting areas between the individual depressions.
Claim 15
Dependent Claim
16 words
A method as defined in claim 8, in which graphite is used as the dry lubricant.
Claim 16
Dependent Claim
128 words
In a method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the steps of: propelling glass spheres toward at least one of the relatively movable surfaces of said engine at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres; the diameter of the glass spheres directed toward said surface lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface; the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 17
Dependent Claim
128 words
In a method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the steps of: propelling glass spheres toward at least one of the relatively movable surfaces of said engine at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres; the diameter of the glass spheres directed toward said surface lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface; the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions.
Claim 18
Dependent Claim
143 words
In a method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the steps of: propelling glass spheres toward at least one of the relatively movable surfaces of said engine at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres; the diameter of the glass spheres directed toward said surface lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface; the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; and lightly honing the surface to produce substantially flat supporting areas between the individual depressions.
Claim 19
Dependent Claim
143 words
In a method of reducing fuel and oil consumption in an internal combustion engine having relatively movable surfaces, the steps of: propelling glass spheres toward at least one of the relatively movable surfaces of said engine at a velocity sufficient to form a multiplicity of local depressions and surface compression at the points of impact but insufficient to fracture the spheres; the diameter of the glass spheres directed toward said surface lying within the range of from about 0.002 inches to about 0.004 inches to provide depressions of similar diameter in said surface; the spheres being directed against the surface for a period of time sufficient to saturate said surface with said depressions over the entire surface area without leaving flat portions of the surface between the depressions; and lightly honing the surface to produce substantially flat supporting areas between the individual depressions.
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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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |