US4545346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion heat engine and cycle therefor
Assignee: Individual
•
Filing: 1983-03-21
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Granted: 1985-10-08
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Expires: 2003-03-21
Abstract
Abstract An internal combustion heat engine and cycle therefor comprising a two stroke cylinder and piston unit having a combustion chamber at the top of the cylinder, having a compression chamber at the bottom of the cylinder, and having a transfer chamber charged with compressed combustion support air transferred into the combustion chamber during initial movement of the piston in a first power stroke, followed by spark ignition and combustion to effect said power stroke with simultaneous compression in said compression chamber and with admission of compressed combustion support air into said transfer chamber during terminal movement of said power stroke, the compressed combustion support air being stored in the transfer chamber during a second exhaust stroke with simultaneous induction of air into the compression chamber.
Inventors
- 👤 Harlow B. Grow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:44
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/04; F02M69/042; F02M69/045; F02B; F02B33/00; F02B33/02; F02B33/04; F02B33/24; F02B33/28; F02B33/30; F02B33/32; F02B33/34; F02B33/36; F02B33/38; F02B33/44; F02B75/00; F02B75/02; F02M43/00; F02M43/02; F02B1/00; F02B1/02; F02B1/04; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
146 words
An internal combustion heat engine cycle for a reciprocating engine unit, and including; admitting intake air into a separate compression chamber continuously during a full stroke of a piston, charging a transfer chamber with compressed combustion support air from the compression chamber and storing it therein during a first power stroke of the piston, transferring a portion of the compressed combustion support air from the transfer chamber and into a combustion chamber during the initial portion of first power stroke of the piston, injecting fuel into the combustion chamber to admix with the compressed combustion support air transferred therein, igniting the admixture of fuel and compressed combustion support air to effect the first power stroke of the piston, and discharging burnt gases from the combustion chamber while simultaneously admitting the aforesaid intake air into the compression chamber during a second reciprocal exhaust stroke of the piston.
Claim 2
Dependent Claim
146 words
An internal combustion heat engine cycle for a reciprocating engine unit, and including; admitting intake air into a separate compression chamber continuously during a full stroke of a piston, charging a transfer chamber with compressed combustion support air from the compression chamber and storing it therein during a first power stroke of the piston, transferring a portion of the compressed combustion support air from the transfer chamber and into a combustion chamber during the initial portion of first power stroke of the piston, injecting fuel into the combustion chamber to admix with the compressed combustion support air transferred therein, igniting the admixture of fuel and compressed combustion support air to effect the first power stroke of the piston, and discharging burnt gases from the combustion chamber while simultaneously admitting the aforesaid intake air into the compression chamber during a second reciprocal exhaust stroke of the piston.
Claim 3
Dependent Claim
38 words
The heat engine cycle as set forth in claim 1, wherein charging of compressed combustion support air is one way into the transfer chamber and stored therein during substantially the entire second reciprocal exhaust stroke of the piston.
Claim 4
Dependent Claim
31 words
The heat engine cycle as set forth in claim 1, wherein admitting of intake air is one way into the compression chamber during the second reciprocal exhaust stroke of the piston.
Claim 5
Dependent Claim
88 words
The heat engine cycle as set forth in claim 1, wherein charging of compressed combustion support air is one way into the transfer chamber and stored therein during substantially the entire second reciprocal exhaust stroke of the piston, wherein transfer of compressed combustion support air is one way into the combustion chamber during the initial portion of the first power stroke of the piston, and wherein admitting of intake air is one way into the compression chamber continuously during the entire second reciprocal exhaust stroke of the piston.
Claim 6
Dependent Claim
45 words
The heat engine cycle as set forth in claim 1, wherein transferring of compressed combustion support air is stopped at a substantially advanced position during the initial portion of the first power stroke of the piston at which position igniting the admixture is by spark.
Claim 7
Dependent Claim
33 words
The heat engine cycle as set forth in claim 1, wherein injecting of fuel is into the combustion chamber during the transferring of said a portion of the compressed combustion support air therein.
Claim 8
Dependent Claim
45 words
The heat engine cycle as set forth in claim 6, wherein transferring of compressed combustion support air is stopped at a substantially advanced position during the initial portion of the first power stroke of the piston at which position igniting the admixture is by spark.
Claim 9
Dependent Claim
61 words
The heat engine cycle as set forth in claim 1, wherein transfer of compressed combustion support air is one way into the combustion chamber during substantially the entire initial portion of the first power stroke of the piston, and wherein injecting of fuel is into the combustion chamber during the transferring of said a portion of the compressed combustion air therein.
Claim 10
Dependent Claim
45 words
The heat engine cycle as set forth in claim 8, wherein transferring of compressed combustion support air is stopped at a substantially advanced position during the initial portion of the first power stroke of the piston at which position igniting the admixture is by spark.
Claim 11
Dependent Claim
60 words
The heat engine cycle as set forth in claim 1, wherein transferring of compressed combustion support air is stopped at a substantially advanced position during the initial portion of the first power stroke of the piston, and wherein injecting of fuel commences at said advanced position of the piston and at which position igniting of the admixture is by spark.
Claim 12
Dependent Claim
27 words
The heat engine cycle as set forth in claim 10, wherein injecting of fuel continues during a substantial portion of the first power stroke of the piston.
Claim 13
Dependent Claim
34 words
The heat engine cycle as set forth in claim 10, wherein the injecting of fuel is by constant volume variable potency continuing during a substantial portion of the first power stroke of the piston.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-07 | 1997-04-08 | 1997-10-08 | $7700.00 | Window Closed / Lapsed |