Patent US4547954A successfully refreshed from Google Patents.
Patent US5063883A successfully refreshed from Google Patents.
US5063883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detonation control device for an internal combustion engine
Assignee: Individual
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Filing: 1990-03-02
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Granted: 1991-11-12
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Expires: 2010-03-02
Abstract
Abstract The invention is directed towards adjusting the combustion ratio of an internal combustion engine. The apparatus has a compensator piston which is selectively hydraulically positioned. The piston is linked to a shock adsorber so as to keep the combustion chamber charge from reaching the pressure detonation limit.
Inventors
- 👤 Billy E. Dingess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:41
CPC Classifications
F; F02; F02D; F02D15/00; F02D15/04; F02B; F02B2275/00; F02B2275/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
148 words
An internal combustion engine having a variable compression ratio comprising: a power cylinder with an engine piston connected to a crankshaft, said cylinder having a head, a head cylinder in said power cylinder head comprising a compensator cylinder adjacent said power cylinder which is connected by a seat to a larger displacement cylinder, a hollow compensator piston having a base with a seat, and slidable within said cylinder so that said seats can contact each other, said base having inlet and outlet holes for circulating cooling oil through said compensator piston, said compensator piston having oil rings at either end, a first set of inlet and outlet oil lines opening into said displacement cylinder and adjacent to said head cylinder seat to as to communicate with said inlet and outlet holes, with said inlet line opening facing said inlet hole and outlet line opening facing said outlet hole.
Claim 2
Dependent Claim
148 words
An internal combustion engine having a variable compression ratio comprising: a power cylinder with an engine piston connected to a crankshaft, said cylinder having a head, a head cylinder in said power cylinder head comprising a compensator cylinder adjacent said power cylinder which is connected by a seat to a larger displacement cylinder, a hollow compensator piston having a base with a seat, and slidable within said cylinder so that said seats can contact each other, said base having inlet and outlet holes for circulating cooling oil through said compensator piston, said compensator piston having oil rings at either end, a first set of inlet and outlet oil lines opening into said displacement cylinder and adjacent to said head cylinder seat to as to communicate with said inlet and outlet holes, with said inlet line opening facing said inlet hole and outlet line opening facing said outlet hole.
Claim 3
Dependent Claim
21 words
The internal combustion engine according to claim 1, further comprising: a groove around said base in which said holes are located.
Claim 4
Dependent Claim
24 words
The internal combustion engine according to claim 1, further comprising: means for absorbing shocks to said compensator piston from combustion in said power cylinder.
Claim 5
Dependent Claim
26 words
The internal combustion engine according to claim 3, wherein said shock absorbing means includes: a gas filled damper hydraulically linked by oil to said displacement cylinder.
Claim 6
Dependent Claim
68 words
The internal combustion engine according to claim 4, wherein said shock absorbing means further comprises a second set of inlet and outlet lines opening into a passage defining said hydraulic link, check valves in said inlet lines, a pressure relief valve in said second outlet lin for opening to release oil in said link when the pressure in said power cylinder nears the detonation limit of said engine.
Claim 7
Dependent Claim
43 words
The internal combustion engine according to claim 5, further comprising: a check valve and a solenoid operated on-off valve in said first outlet line, a solenoid operated on-off valve in said second inlet line, and a solenoid for selectively opening said relief valve.
Claim 8
Dependent Claim
43 words
The internal combustion engine as claimed in claim 3 where said shock absorbing means further includes: a damper hydraulically linked by oil to said first set of inlet and outlet lines to communicate between said compensator piston seat and said head cylinder seat.
Claim 9
Dependent Claim
37 words
The internal combustion engine according to claim 1, further comprising: a baffle in said compensator piston which directs circulating oil from the base to the end of the compensator piston adjacent said power cylinder, and back again.
Claim 10
Dependent Claim
73 words
The internal combustion engine according to claim 1, wherein said power piston comprises: a first concave portion and an adjacent smaller second concave portion, a raised segment between said portions, whereby when said power piston is at top dead center, said first portion is located opposite said compensator piston and a spark plug and forming a first chamber, said second position is located opposite an exhaust valve and forming a smaller squish chamber.
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) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |