US3749097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine control
Assignee: Individual
•
Filing: 1970-12-14
•
Granted: 1973-07-31
•
Expires: 1990-12-14
Abstract
Abstract A fuel injection system for Diesel cycle or compression ignition internal combustion engines wherein fuel injection remains volumetrically constant and potency of the fuel is varied dependent upon the required power application. A constant stroke and constant volume injector pump is operated in timed relation to the engine crankshaft rotation, with a fuel mixing and displacement unit for each engine cylinder involved. The structural functions are: low pressure metering and homogenous mixing together of at least two liquid fuels, one of maximum potency and one of lesser or minimum potency such as a dilutant and/or other additives as may be required; the averaging of power throughout multiple power strokes or revolutions; and the constant volume injection which results in full stroke fuel injection and reduced peak pressure and smoothness of operation in lighter weight engine structures; all of which is due to the controllability of the injection process.
Inventors
- 👤 H Grow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:17
CPC Classifications
F; F02; F02D; F02D1/00; F02M; F02M59/00; F02M59/02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1352
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
136 words
Full stroke fuel pump injection for a compression ignition engine having a combustion chamber, and including: a pump body having closed dual chambers therein, a transfer chamber and a storage chamber, there being restricted fluid communication between the transfer chamber and the storage chamber; fluid displacement means entering into the said storage chamber to change the volumetric displacement thereof; means reciprocating the said fluid displacement means into said storage chamber in timed relation to cycling of the engine; a metered fuel supply means and a metered fuel dilutant supply means both opening into the said transfer chamber and charging the same with fuel and fuel dilutant respectively in proportionate quantities and in timed relation to cycling of the engine; and nozzle means opening from the said transfer chamber and into the combustion chamber of the engine.
Claim 2
Dependent Claim
136 words
Full stroke fuel pump injection for a compression ignition engine having a combustion chamber, and including: a pump body having closed dual chambers therein, a transfer chamber and a storage chamber, there being restricted fluid communication between the transfer chamber and the storage chamber; fluid displacement means entering into the said storage chamber to change the volumetric displacement thereof; means reciprocating the said fluid displacement means into said storage chamber in timed relation to cycling of the engine; a metered fuel supply means and a metered fuel dilutant supply means both opening into the said transfer chamber and charging the same with fuel and fuel dilutant respectively in proportionate quantities and in timed relation to cycling of the engine; and nozzle means opening from the said transfer chamber and into the combustion chamber of the engine.
Claim 3
Dependent Claim
29 words
The fuel pump injection for engines as set forth in claim 1 and wherein the said transfer chamber is of substantially lesser volumetric displacement than the said storage chamber.
Claim 4
Dependent Claim
48 words
The fuel pump injection for engines as set forth in claim 1 and wherein the restricted fluid communication between the said transfer chamber and the said storage chamber is by means of a passage opening diagonally into at least one of said chambers for mixing the fluids therein.
Claim 5
Dependent Claim
43 words
The fuel pump injection for engines as set forth in claim 1, wherein the said storage chamber has an inner diameter wall, and wherein the fluid displacement means is a ram slideably projecting into said storage chamber to change the volumetric displacement therein.
Claim 6
Dependent Claim
59 words
The fuel pump injection for engines as set forth in claim 1, wherein the said pump body has an inner diameter wall common to said dual chambers and has a guide opening into said storage chamber, and wherein the fluid displacement means is a ram slideably projecting through said guide opening and carrying a piston separating said dual chambers.
Claim 7
Dependent Claim
79 words
The fuel pump injection for engines as set forth in claim 1, wherein the said pump body has inner diameter wall common to said dual chambers and has a guide opening into said storage chamber, and wherein the fluid displacement means is a ram slideably projecting through said guide opening and carrying a piston having an outer diameter wall of smaller diameter than said inner diameter wall for said restricted fluid communication between the transfer chamber and storage chamber.
Claim 8
Dependent Claim
64 words
The fuel pump injection for engines as set forth in claim 1, wherein the said pump body has an inner diameter wall common to said dual chambers and has a guide opening into said storage chamber, and wherein the fluid displacement means is a ram slideably projecting through said guide opening and carrying a piston having a passage therein extending between said transfer chamber.
Claim 9
Dependent Claim
93 words
The fuel pump injection for engines as set forth in claim 1, wherein the said pump body has an inner diameter wall common to said dual chambers and has a guide opening into said storage chamber, and wherein the fluid displacement means is a ram slideably projecting through said guide opening and carrying a piston, and wherein the open fluid communication between the said transfer chamber and the said storage chamber is by means of a passage opening diagonally through the piston and into said dual chambers respectively for mixing the flUids therein.
Claim 10
Dependent Claim
92 words
The fuel pump injection for engines as set forth in claim 1, wherein the said pump body has an inner diameter wall common to said dual chambers and has a guide opening into said storage chamber, wherein the fluid displacement means is a ram slideably projecting through said guide opening and carrying a piston, and wherein the open fluid communication between the transfer chamber and the said storage chamber is by means of a passage through the pump body and opening laterally into said dual chambers respectively for mixing the fluids therein.
Claim 11
Dependent Claim
95 words
The fuel pump injection for engines as set forth in claim 1, wherein the said transfer chamber is of substantially lesser volumetric displacement than the said storage chamber, wherein the said pump body has an inner diameter wall common to said dual chambers and has a guide opening into said storage chamber, wherein the fluid displacement means is a ram slideably projecting through said guide opening and carrying a piston separating said dual chambers, and wherein the open fluid communication between the said dual chambers is by means of a restricted passage in the piston.
Claim 12
Dependent Claim
139 words
Full stroke fuel pump injection for a compression ignition engine having a combustion chamber, and including: a pump body having closed dual chambers therein, a transfer chamber and a storage chamber, there being restricted fluid communication between the transfer chamber and the storage chamber; fluid displacement means entering into the said storage chamber to change the volumetric displacement thereof; means reciprocating the said fluid displacement means into said storage chamber in timed relation to cycling of the engine; a pressured fuel supply means and a pressured fuel dilutant supply means and each having valves opened inversely with respect to each other and charging their respective fluids into the transfer chamber in proportionate quantities and in timed relation to cycling of the engine; and nozzle means opening from the said transfer chamber and into the combustion chamber of the engine.
Claim 13
Dependent Claim
139 words
Full stroke fuel pump injection for a compression ignition engine having a combustion chamber, and including: a pump body having closed dual chambers therein, a transfer chamber and a storage chamber, there being restricted fluid communication between the transfer chamber and the storage chamber; fluid displacement means entering into the said storage chamber to change the volumetric displacement thereof; means reciprocating the said fluid displacement means into said storage chamber in timed relation to cycling of the engine; a pressured fuel supply means and a pressured fuel dilutant supply means and each having valves opened inversely with respect to each other and charging their respective fluids into the transfer chamber in proportionate quantities and in timed relation to cycling of the engine; and nozzle means opening from the said transfer chamber and into the combustion chamber of the engine.
Claim 14
Dependent Claim
27 words
The pressured fuel pump injection for engines as set forth in claim 11 and wherein the fuel supply means and fuel dilutant supply means are pressure regulated.
Claim 15
Dependent Claim
46 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof sequentially opened for variable time intervals by means responsive to cycling of the engine.
Claim 16
Dependent Claim
44 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof opened inversely balanced degrees by means responsive to cycling of the engine.
Claim 17
Dependent Claim
59 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the nozzle means are fixed orifices opening into said combustion chamber, and wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof sequentially opened for variable time intervals by means responsive to cycling of the engine.
Claim 18
Dependent Claim
58 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the nozzle means has fixed orifices opening into said combustion chamber, and wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof opened in inversely balanced degree by means responsive to cycling of the engine.
Claim 19
Dependent Claim
66 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the nozzle means has valve means restricting flow of mixed fluids into the combustion chamber of the engine, and wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof sequentially opened for variable time intervals by means responsive to cycling of the engine.
Claim 20
Dependent Claim
65 words
The pressured fuel pump injection for engines as sEt forth in claim 11, wherein the nozzle means has valve means restricting flow of mixed fluids into the combustion chamber of the engine, and wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof opened in inversely balanced degree by means responsive to cycling of the engine.
Claim 21
Dependent Claim
70 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the nozzle means has valve means restricting flow of mixed fluids through fixed orifices opening into said combustion chamber of the engine, and wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof sequentially opened for variable time intervals by means responsive to cycling of the engine.
Claim 22
Dependent Claim
69 words
The pressured fuel pump injection for engines as set forth in claim 11, wherein the nozzle means has valve means restricting flow of mixed fluids through fixed orifices opening into said combustion chamber of the engine, and wherein the fuel supply means and fuel dilutant supply means are pressure regulated and the said respective valves thereof opened in inversely balanced degree by means responsive to cycling of the engine.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |