Patent US3259113A successfully refreshed from Google Patents.
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US3259113A Expired / Lapsed US ⏱️ 0.0 years remaining

Rotary diesel engines

Assignee: Yanmar Co Ltd
•
Filing: 1962-06-05
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Granted: 1966-07-05
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Expires: 1982-06-05
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Abstract

No abstract record available.

Inventors

  • 👤 Hamada Yoshitsugu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:27
CPC Classifications
F; F02; F02B; F02B53/00; F02B2053/005; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2730/00; F02B2730/01; F02B2730/018; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 207 words
A ROTARY DIESEL ENGINE COMPRISING, IN COMBINATION A FORE COMPRESSOR INCLUDING A FIRST HOUSING AND INNER PERIPHERAL WALL SURFACE OF APPROXIMATELY SINGLE-LORE EPITROCHOIDAL CONFIGURATION, A CRANKSHAFT JOURNALED IN SAID HOUSING AND HAVING A FIRST OFFSET PORTION, A FUSIFORM ROTOR OWN AXIS AT HALF THE SPEED OF SAID CRANK SHAFT AND HAVING TWO EDGE PORTIONS SLIDABLY CONTACTING SAID INNER PERIPHERAL TWO EDGE PORTIONS SLIDABLY CONTACTING SAID INNER PERIPHERAL WALL SURFACE, INTAKE AND OUTPUT OPENINGS IN SAID FIRST HOUSING; AND AN INTERNAL-COMBUSTION ENGINE BEING ARRANGED COAXIALLY AND CONTIGUOUS WITH SAID COMPRESSOR AND INCLUDING A SECOND HOUSING HAVING AN INNER PERIPHERAL WALL SURFACE OF APPROXIMATELY DOUBLE-LOBE EPITROCHOIDAL CONFIGURATION, A SECOND CRANK SHAFT JOUNRALLED IN SAID SECOND HOUSING AND HAVING A SECOND OFFSET PORTION, BOTH SAID CRANKSHAFT BEING INTEGRALLY CONNECTED, A GENERALLY TRIANGULAR ROTOR MOUNTED ON SAID SECOND OFFSET PORTION FOR ROTATION ON ITS OWN AXIS AT ONE-THIRD THE SPEEDM OF ROTATION OF SAID SECOND CRANKSHAFT AND HAVING THREE EDGE PORTION SLIDABLY CONTACTING SAID INNER PERIPHERAL WALL SURFACE OF THE SECOND HOUSING, INTAKE AND EXHAUST OPENINGS IN SAID HOUSING HOUSING SAID COMPRESSOR OUTPUT BEING CONNECTED TO THE INLET OF THE ENGINE SO THAT THE AIR TAKEN INTO THE ENGINE IS COMPRESSED TO A DEGREE SUFFICIENT FOR EEFFECTING IGNITION OF THE FUEL.
Claim 2
Dependent Claim 207 words
A ROTARY DIESEL ENGINE COMPRISING, IN COMBINATION A FORE COMPRESSOR INCLUDING A FIRST HOUSING AND INNER PERIPHERAL WALL SURFACE OF APPROXIMATELY SINGLE-LORE EPITROCHOIDAL CONFIGURATION, A CRANKSHAFT JOURNALED IN SAID HOUSING AND HAVING A FIRST OFFSET PORTION, A FUSIFORM ROTOR OWN AXIS AT HALF THE SPEED OF SAID CRANK SHAFT AND HAVING TWO EDGE PORTIONS SLIDABLY CONTACTING SAID INNER PERIPHERAL TWO EDGE PORTIONS SLIDABLY CONTACTING SAID INNER PERIPHERAL WALL SURFACE, INTAKE AND OUTPUT OPENINGS IN SAID FIRST HOUSING; AND AN INTERNAL-COMBUSTION ENGINE BEING ARRANGED COAXIALLY AND CONTIGUOUS WITH SAID COMPRESSOR AND INCLUDING A SECOND HOUSING HAVING AN INNER PERIPHERAL WALL SURFACE OF APPROXIMATELY DOUBLE-LOBE EPITROCHOIDAL CONFIGURATION, A SECOND CRANK SHAFT JOUNRALLED IN SAID SECOND HOUSING AND HAVING A SECOND OFFSET PORTION, BOTH SAID CRANKSHAFT BEING INTEGRALLY CONNECTED, A GENERALLY TRIANGULAR ROTOR MOUNTED ON SAID SECOND OFFSET PORTION FOR ROTATION ON ITS OWN AXIS AT ONE-THIRD THE SPEEDM OF ROTATION OF SAID SECOND CRANKSHAFT AND HAVING THREE EDGE PORTION SLIDABLY CONTACTING SAID INNER PERIPHERAL WALL SURFACE OF THE SECOND HOUSING, INTAKE AND EXHAUST OPENINGS IN SAID HOUSING HOUSING SAID COMPRESSOR OUTPUT BEING CONNECTED TO THE INLET OF THE ENGINE SO THAT THE AIR TAKEN INTO THE ENGINE IS COMPRESSED TO A DEGREE SUFFICIENT FOR EEFFECTING IGNITION OF THE FUEL.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-07-04 1970-01-03 1970-07-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-07-04 1974-01-03 1974-07-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-07-04 1978-01-03 1978-07-05 $7700.00 Window Closed / Lapsed

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