US5214333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine with flywheel generator
Assignee: Isuzu Ceramics Research Institute Co Ltd
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Filing: 1990-12-12
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Granted: 1993-05-25
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Expires: 2010-12-12
Abstract
Abstract An engine has a flywheel which has a high peripheral speed even when the engine rotates at a low speed. The flywheel has a plurality of permanent magnets mounted on an outer circumference thereof and having alternately different magnetic poles. A stator is disposed in confronting relation to radially outer ends of the permanent magnets. Electric energy induced by the stator upon rotation of the flywheel is supplied to a rotary electric machine combined with a turbocharger to assist the turbocharger in supplying air under pressure to the engine when the engine rotates at low speed.
Inventors
- 👤 Hideo Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:18
CPC Classifications
H; H02; H02K; H02K7/00; F; F02; F02B; F02B37/00; F02B37/04; F02B37/10; F02B41/00; F02B41/02; F02B41/10; F02B63/00; F02B63/04; F02P; F02P1/00; F02P1/02; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
An engine system comprising: an internal combustion engine, said engine including a crankshaft and a flywheel fixed to said crankshaft for rotation therewith, said flywheel including a peripheral ring of magnetic material, there being a plurality of permanent magnets mounted on an outer circumference of said ring and having alternately different magnetic poles; a stator disposed in confronting relation to radially outer ends of the permanent magnets, for inducing electric energy in response to rotation of the said flywheel; a turbocharger for supplying air under pressure to the engine, said turbocharger having a rotatable shaft; a rotary electric machine disposed on said rotatable shaft; and means for supplying electric energy generated by said stator to said rotary electric machine to assist the turbocharger in supplying said air under pressure to the engine when the rotational speed of the of the engine is lower than a predetermined speed.
Claim 2
Dependent Claim
147 words
An engine system comprising: an internal combustion engine, said engine including a crankshaft and a flywheel fixed to said crankshaft for rotation therewith, said flywheel including a peripheral ring of magnetic material, there being a plurality of permanent magnets mounted on an outer circumference of said ring and having alternately different magnetic poles; a stator disposed in confronting relation to radially outer ends of the permanent magnets, for inducing electric energy in response to rotation of the said flywheel; a turbocharger for supplying air under pressure to the engine, said turbocharger having a rotatable shaft; a rotary electric machine disposed on said rotatable shaft; and means for supplying electric energy generated by said stator to said rotary electric machine to assist the turbocharger in supplying said air under pressure to the engine when the rotational speed of the of the engine is lower than a predetermined speed.
Claim 3
Dependent Claim
14 words
An engine system according to claim 1, wherein said engine comprises a two-cycle engine.
Claim 4
Dependent Claim
100 words
An engine turbocharging system for an internal combustion engine having a crankshaft and a flywheel fixed to the crankshaft for rotation therewith, said system comprising: a turbocharger having a rotary electric machine; generating means including a peripheral ring of magnetic material on said flywheel and a series of permanent magnets having alternately different magnetic poles on said ring for generating electric energy from rotation of the flywheel; and control means for controlling flow of electric energy from said generating means to supply power to the rotary electric machine to drive said turbocharger when the engine operates below a predetermined speed.
Claim 5
Dependent Claim
100 words
An engine turbocharging system for an internal combustion engine having a crankshaft and a flywheel fixed to the crankshaft for rotation therewith, said system comprising: a turbocharger having a rotary electric machine; generating means including a peripheral ring of magnetic material on said flywheel and a series of permanent magnets having alternately different magnetic poles on said ring for generating electric energy from rotation of the flywheel; and control means for controlling flow of electric energy from said generating means to supply power to the rotary electric machine to drive said turbocharger when the engine operates below a predetermined speed.
Claim 6
Dependent Claim
33 words
An engine turbocharging system according to claim 3, further comprising a battery, wherein said control means supplies power from said generating means to said battery when the engine operates above the predetermined speed.
Claim 7
Dependent Claim
28 words
An engine turbocharging system according to claim 3, wherein said control means comprises a rotation sensor provided in the engine to detect a rotation speed of said crankshaft.
Claim 8
Dependent Claim
28 words
An engine turbocharging system according to claim 4, wherein said control means comprises a rotation sensor provided in the engine to detect a rotation speed of said crankshaft.
Claim 9
Dependent Claim
21 words
An engine turbocharging system according to claim 3, wherein said generating means comprises a stator having magnetic poles confronting said magnets.
Claim 10
Dependent Claim
21 words
An engine turbocharging system according to claim 4, wherein said generating means comprises a stator having magnetic poles confronting said magnets.
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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) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |