US3692001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular piston internal combustion engine
Assignee: Fried Krupp AG
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Filing: 1971-02-16
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Granted: 1972-09-19
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Expires: 1991-02-16
Abstract
Abstract A circular piston internal combustion machine with trough-shaped depressions in the circumferential direction of the piston, in which fuel flow deflecting means are provided in said troughshaped depressions for deflecting the fuel flow in the axial direction of the piston which is rotatable relative to the housing.
Inventors
- 👤 Erwin Hejj
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:20
CPC Classifications
F; F02; F02B; F02B55/00; F02B55/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
198 words
A circular piston internal conbustion machine which includes a housing with a epitrochoidal inner contour, a shaft journalled in said housing and provided with an eccentric, a rotary piston rotatable relative to said inner cOntour of said housing and journalled on said eccentric for rotation relative thereto, said piston being of polygonal cross-sectional shape so as to have a plurality of circumferentially spaced edge means extending in the direction of the axis of rotation of said piston relative to said housing, said piston having those areas thereof which are located between said edge means and face said inner contour respectively provided with trough-shaped depressions forming combustion chamber means and extending in the circumferential direction of said piston, each of said combustion chamber means located between two circumferentially successive edge means including wall means having deflecting surface means extending substantially transverse to the direction of rotation of said piston relative to said housing for deflecting fuel gas in said chamber means in a direction transverse to the circumferential direction of said rotary piston, and at least one deflecting body arranged within said chamber means in the central portion thereof and forming said wall means with said deflecting surface means.
Claim 2
Dependent Claim
198 words
A circular piston internal conbustion machine which includes a housing with a epitrochoidal inner contour, a shaft journalled in said housing and provided with an eccentric, a rotary piston rotatable relative to said inner cOntour of said housing and journalled on said eccentric for rotation relative thereto, said piston being of polygonal cross-sectional shape so as to have a plurality of circumferentially spaced edge means extending in the direction of the axis of rotation of said piston relative to said housing, said piston having those areas thereof which are located between said edge means and face said inner contour respectively provided with trough-shaped depressions forming combustion chamber means and extending in the circumferential direction of said piston, each of said combustion chamber means located between two circumferentially successive edge means including wall means having deflecting surface means extending substantially transverse to the direction of rotation of said piston relative to said housing for deflecting fuel gas in said chamber means in a direction transverse to the circumferential direction of said rotary piston, and at least one deflecting body arranged within said chamber means in the central portion thereof and forming said wall means with said deflecting surface means.
Claim 3
Dependent Claim
45 words
A machine according to claim 1, said chamber means widening within the region of said deflecting bodies with regard to those portions of said chamber means which are located in front and behind said deflecting bodies when looking in the circumferential direction of said piston.
Claim 4
Dependent Claim
30 words
A machine according to claim 2, in which the top surface of said deflecting bodies is declining in the direction of movement of said rotary piston relative to said housing.
Claim 5
Dependent Claim
28 words
A machine according to claim 3, in which the said top surface of said deflecting bodies drops at an incline down to the bottom of said chamber means.
Claim 6
Dependent Claim
58 words
A machine according to claim 2, in which each of said chamber means is provided centrally with at least one added impinging, disturbing, and deflecting surface means, each chamber means has a plurality of auxiliary deflecting means spaced from each other in the circumferential direction of said piston and forming said added deflecting surface means relative to depressions.
Claim 7
Dependent Claim
62 words
A machine according to claim 5, in which each of said chamber means is provided centrally with at least one added impinging, disturbing, and deflecting surface means, each of said chamber means is provided with a plurality of added deflecting surfaces laterally of the plane of symmetry extending through said chamber means in the circumferential direction of said piston relative to depressions.
Claim 8
Dependent Claim
16 words
A machine according to claim 1, in which said deflecting wall means include turbulence chamber means.
Claim 9
Dependent Claim
55 words
A machine according to claim 7, which includes ignition means distributed relative to the circumference of said piston, and in which the speed of rotation of said piston relative to said housing is such that said ignition means will be in the region of said turbulence chamber means when ignition of fuel therein is desired.
Claim 10
Dependent Claim
39 words
A machine according to claim 2, in which said deflecting bodies are of a predetermined shape when viewed from the top, and have one end portion pointing in the direction of rotation of the piston relative to said housing.
Claim 11
Dependent Claim
41 words
A machine according to claim 2, in which said deflecting bodies have the shape of a trapezoid when viewed from the top with the base of the trapezoid facing in the direction of rotation of said piston relative to said housing.
Claim 12
Dependent Claim
54 words
A machine according to claim 9, in which the chamber means together with opposite sides of said deflecting bodies form oppositely located passage means increasing in cross-section from the basis of the respective deflective body to the end portion thereof and leading to a portion of said chamber means between two successive deflecting bodies.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |