US4653437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverized char fuel injector
Assignee: Individual
•
Filing: 1986-02-14
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Granted: 1987-03-31
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Expires: 2006-02-14
Abstract
Abstract A pulverized fuel injector is described capable of injecting and dispersing pulverized char fuels into an engine combustion chamber.
Inventors
- 👤 Joseph C. Firey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:15
CPC Classifications
F; F02; F02B; F02B45/00; F02B45/02; F02M; F02M21/00; F02M21/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
322 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein and comprising: means for containing a portion of pulverized char fuel and comprising a container inlet and a container outlet; a source of high pressure driver gas; a source of pulverized char fuel particles; means for containing a charge of high pressure driver gas and comprising a driver inlet and a driver outlet; a dispersing nozzle passage comprising a nozzle inlet and a nozzle outlet connected to said combustion chamber; means for reloading another portion of pulverized char fuel from said source of pulverized char fuel into said means for containing a portion of pulverized char fuel and comprising a reload outlet; means for connecting said driver inlet to said source of high pressure driver gas; means for connecting said container for pulverized fuel to said reload outlet; means for connecting said container inlet to said driver outlet; means for connecting said container outlet to said nozzle inlet; means for driving all of said several means for connecting and said means for reloading so that an injection process occurs at the start of each said combustion process in said combustion chamber, said injection process comprising the following steps carried out in the following time order, first connect said container for pulverized fuel to said reload outlet and reload a portion of pulverized fuel into said containing means therefor, second disconnect said container for pulverized fuel from said reload outlet and connect said container inlet to said driver outlet and connect said driver inlet to said source of high pressure driver gas, third connect said container outlet to said nozzle inlet, fourth disconnect said container outlet from said nozzle inlet, fifth disconnect said driver inlet from said source of high pressure driver gas at some time between connecting said container outlet to said nozzle inlet and disconnecting said container outlet from said nozzle inlet.
Claim 2
Dependent Claim
322 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein and comprising: means for containing a portion of pulverized char fuel and comprising a container inlet and a container outlet; a source of high pressure driver gas; a source of pulverized char fuel particles; means for containing a charge of high pressure driver gas and comprising a driver inlet and a driver outlet; a dispersing nozzle passage comprising a nozzle inlet and a nozzle outlet connected to said combustion chamber; means for reloading another portion of pulverized char fuel from said source of pulverized char fuel into said means for containing a portion of pulverized char fuel and comprising a reload outlet; means for connecting said driver inlet to said source of high pressure driver gas; means for connecting said container for pulverized fuel to said reload outlet; means for connecting said container inlet to said driver outlet; means for connecting said container outlet to said nozzle inlet; means for driving all of said several means for connecting and said means for reloading so that an injection process occurs at the start of each said combustion process in said combustion chamber, said injection process comprising the following steps carried out in the following time order, first connect said container for pulverized fuel to said reload outlet and reload a portion of pulverized fuel into said containing means therefor, second disconnect said container for pulverized fuel from said reload outlet and connect said container inlet to said driver outlet and connect said driver inlet to said source of high pressure driver gas, third connect said container outlet to said nozzle inlet, fourth disconnect said container outlet from said nozzle inlet, fifth disconnect said driver inlet from said source of high pressure driver gas at some time between connecting said container outlet to said nozzle inlet and disconnecting said container outlet from said nozzle inlet.
Claim 3
Dependent Claim
62 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein, as described in claim 1: wherein said means for driving so drives all of said means for connecting that said driver inlet is disconnected from said source of high pressure driver gas while said container outlet is being connected to said nozzle inlet.
Claim 4
Dependent Claim
50 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein, as described in claim 2: wherein said means for reloading further comprises means for adjusting the quantity of pulverized fuel reloaded into said means for containing a portion of pulverized fuel.
Claim 5
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 3.
Claim 6
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 4: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 7
Dependent Claim
48 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described claim 2.
Claim 8
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 6: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 9
Dependent Claim
164 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein, as described in claim 1: wherein said driver gas contains appreciable oxygen gas; and further comprising: a source of ignitable fuel; means for injecting a quantity of ignitable fuel from said source of ignitable fuel into said means for containing a charge of high pressure driver gas; means for firing an electric spark inside said means for containing a charge of high pressure driver gas; means for stopping backflow of gas from said driver inlet toward said source of high pressure driver gas; and wherein said means for driving all of said means for connecting also drives said means for injecting an ignitable fuel and said means for firing a spark so that ignitable fuel injection followed by an electric spark take place after each connection of said container inlet to said driver outlet and before connection of said container outlet to said nozzle inlet.
Claim 10
Dependent Claim
50 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein, as described in claim 8: wherein said means for reloading further comprises means for adjusting the quantity of pulverized fuel reloaded into said means for containing a portion of pulverized fuel.
Claim 11
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 9.
Claim 12
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 10: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 13
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 8.
Claim 14
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 12: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 15
Dependent Claim
132 words
A machine for injecting pulverized char fuel into a combustion chamber at the start of each combustion process therein as described in claim 1: wherein said driver gas contains appreciable oxygen gas and sufficient fuel gas to be spark ignitable; and further comprising: means for firing an electric spark inside said means for containing a charge of high pressure driver gas; means for stopping backflow of gas from said driver inlet toward said source of high pressure driver gas; and wherein said means for driving all of said means for connecting also drives said means for firing a spark so that an electric spark is fired into said driver gas after each connection of said container inlet to said driver outlet and before connection of said container outlet to said nozzle inlet.
Claim 16
Dependent Claim
50 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein, as described in claim 14: wherein said means for reloading further comprises means for adjusting the quantity of pulverized fuel reloaded into said means for containing a portion of pulverized fuel.
Claim 17
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 15.
Claim 18
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 16: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 19
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 14.
Claim 20
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 18: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 21
Dependent Claim
50 words
A machine for injecting pulverized char fuels into a combustion chamber at the start of each combustion process therein, as described in claim 1: wherein said means for reloading further comprises means for adjusting the quantity of pulverized fuel reloaded into said means for containing a portion of pulverized fuel.
Claim 22
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 20.
Claim 23
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 21: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
Claim 24
Dependent Claim
49 words
An internal combustion engine capable of burning pulverized char fuels comprising: an internal combustion engine mechanism comprising a combustion chamber; a machine for injecting pulverized char fuels into said combustion chamber of said internal combustion engine at the start of each combustion process therein as described in claim 1.
Claim 25
Dependent Claim
39 words
An internal combustion engine capable of burning pulverized char fuels as described in claim 23: wherein said machine for injecting pulverized char fuels injects said pulverized char fuels early during each compression process of said internal combustion engine mechanism.
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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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |