US5012772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Sankoshoki Corp
•
Filing: 1990-03-27
•
Granted: 1991-05-07
•
Expires: 2010-03-27
Abstract
Abstract Internal combustion engines to increase the engine output without altering the cylinder capacity, and comprising liquid injection valves (26, 46) by which fixed quantities of prescribed liquids are injected into combustion chambers (14a, 14b), timed to the detonation process in the internal combustion engine, and heating means by which the liquids injected from the liquid injection valves (26, 46) are heated beforehand to a predetermined high temperature by utilizing the intense heat generating around and nearby said combustion chambers (14a, 14b), so that the device enables effective utilization of heat energy generating around and nearby cylinders as well as increasing the engine output by the sudden expansion of the liquid injected into the combustion chamber pressing the piston therein with a powerful downward stroke.
Inventors
- 👤 Akira Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:43
CPC Classifications
F; F02; F02B; F02B47/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
In an internal combustion engine, a combustion chamber defined by a cylinder, a piston capable of reciprocatingly moving in said cylinder, and a cylinder head including a fuel injection means and an exhaust means communicating with said combustion chamber, the improvement comprising: water injection means for injecting a water jet into said combustion chamber timed to the completion of the fuel gas detonation process; and said water injection means including a part having a structure capable of heat-transfer positioned in a part of said cylinder head of said exhaust means at a place where said exhaust means passes through said cylinder head.
Claim 2
Dependent Claim
102 words
In an internal combustion engine, a combustion chamber defined by a cylinder, a piston capable of reciprocatingly moving in said cylinder, and a cylinder head including a fuel injection means and an exhaust means communicating with said combustion chamber, the improvement comprising: water injection means for injecting a water jet into said combustion chamber timed to the completion of the fuel gas detonation process; and said water injection means including a part having a structure capable of heat-transfer positioned in a part of said cylinder head of said exhaust means at a place where said exhaust means passes through said cylinder head.
Claim 3
Dependent Claim
45 words
In the internal combustion engine as set forth in claim 1, wherein said water injection means injects water at a prearranged optimum timing linked to an actuating mechanism of said fuel injection means for generating steam vapor immediately after a detonation in said combustion chamber.
Claim 4
Dependent Claim
47 words
In the internal combustion chamber as set forth in claim 1, wherein said water injection means includes an injection nozzle and plurality of passageways for hot water to flow therethrough. formed in the cylinder head at a prearranged optimum timing linked to the camshaft of said engine.
Claim 5
Dependent Claim
133 words
In an internal combustion engine having a combustion chamber defined by a cylinder, a piston capable of reciprocatingly moving in said cylinder, and a cylinder head including a fuel injection means and an exhaust means communicating with said combustion chamber, the improvement comprising: water injection means for injecting a water jet into said combustion chamber timed to the completion of a fuel gas detonation process; said water injection means including a part positioned in said exhaust means to heat-transfer from exhaust gas to the water flowing through said water injection means; and said water injection means being linked to an actuating mechanism of said fuel injection means for generating steam vapor immediately after a detonation in said combustion chamber for injecting the water jet into said combustion chamber at a prearranged optimum timing.
Claim 6
Dependent Claim
133 words
In an internal combustion engine having a combustion chamber defined by a cylinder, a piston capable of reciprocatingly moving in said cylinder, and a cylinder head including a fuel injection means and an exhaust means communicating with said combustion chamber, the improvement comprising: water injection means for injecting a water jet into said combustion chamber timed to the completion of a fuel gas detonation process; said water injection means including a part positioned in said exhaust means to heat-transfer from exhaust gas to the water flowing through said water injection means; and said water injection means being linked to an actuating mechanism of said fuel injection means for generating steam vapor immediately after a detonation in said combustion chamber for injecting the water jet into said combustion chamber at a prearranged optimum timing.
Claim 7
Dependent Claim
74 words
In the internal combustion engine as set forth in claim 4, wherein: said water injection means includes means inserted from a top of said cylinder head through an exhaust passage into said combustion chamber and said water injection means includes a tip protruding into said combustion chamber; and said water injection includes an injection nozzle and a plurality of passageways in an interior portion of said injection nozzle for hot water to flow therethrough.
Claim 8
Dependent Claim
33 words
In the internal combustion engine as claimed in claim 1, wherein: said water injection means includes means inserted from a top of said cylinder head through an exhaust passage into said combustion chamber.
Claim 9
Dependent Claim
23 words
In the internal combustion engine as claimed in claim 1, wherein said water injection means includes a tip protruding into said combustion chamber.
Claim 10
Dependent Claim
21 words
In the internal combustion engine as claim 6, wherein said water injection means includes a tip protruding into said combustion chamber.
Claim 11
Dependent Claim
21 words
The device of claim 2, wherein: said water injection means (46) must be positioned to extend through the exhaust manifold (22).
Claim 12
Dependent Claim
27 words
The device of claim 2, wherein: said water injection means (46) includes in the interior thereof a plurality of passageways (50) for hot-water liquids to flow therethrough.
Claim 13
Dependent Claim
30 words
In the internal combustion engine as set forth in claim 2, wherein said water injection means includes an injection nozzle and plurality of passageways for hot water to flow therethrough.
Claim 14
Dependent Claim
33 words
In the internal combustion engine as claimed in claim 5, wherein: said water injection means includes means inserted from a top of said cylinder head through an exhaust passage into said combustion chamber.
Claim 15
Dependent Claim
23 words
In the internal combustion engine as claimed in claim 2, wherein said water injection means includes a tip protruding into said combustion chamber.
References Cited (Backward Citations)
US3074228A
Cited
US3608529A
Cited
US4120268A
Cited
GB2059501A
Cited
US4548187A
Cited
US4417447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-06 | 1994-11-05 | 1995-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-06 | 1998-11-05 | 1999-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-06 | 2002-11-05 | 2003-05-07 | $7700.00 | Window Closed / Lapsed |