Patent US3565047A successfully refreshed from Google Patents.
US3565047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Systems for controlling compression ignition engines
Assignee: CKD Praha DIZ AS
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Filing: 1968-07-01
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Granted: 1971-02-23
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Expires: 1988-07-01
Abstract
Abstract In a combined hydraulic and mechanical system for controlling compression ignition engines, a piston means which has a central axis is provided at its exterior with a control surface inclined with respect to this axis. A cylinder means houses the piston means to form a servocontrol therewith, and a wall of the cylinder means is formed with an overflow bore to be covered and uncovered by the piston means. A manually operable speed control means is connected by a linkage means to the piston means while freeing the latter for rotary movement about its axis. A slide valve means communicates with opposed sides of the piston means in the cylinder means to control the flow of fluid pressure thereto, and a governor means which is also connected to the linkage means is operatively connected with the slide valve means to control the latter. The linkage means is also connected with a metering means which meters the amount of fuel delivered to the engine.
Inventors
- 👤 Antonin Bulvas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:22
CPC Classifications
G; G05; G05D; G05D13/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
In a system for controlling compression ignition engines, piston means having a central axis and an exterior control surface inclined with respect to said axis, cylinder means housing said piston means and guiding the latter for movement along said axis thereof, said cylinder means forming a servocontrol with said piston means and said cylinder means being formed with an overflow bore extending through a wall of said cylinder means to be covered and uncovered by said piston means, said piston means being rotatable within said cylinder means as well as being axially movable therein, a manually operable speed control means, slide valve means communicating with said cylinder means for controlling the flow of pressure fluid into said Cylinder means at opposite sides of said piston means, centrifugal governor means coacting with said slide valve means for controlling the latter, linkage means coacting with said speed control means, governor means, and piston means for controlling said governor means and said piston means in response to actuation of said speed control means while freeing said piston means for rotary movement about its axis, and metering means operatively connected with said linkage means for metering the supply of fuel to the engine according to the axial position of said piston means in said cylinder means.
Claim 2
Dependent Claim
212 words
In a system for controlling compression ignition engines, piston means having a central axis and an exterior control surface inclined with respect to said axis, cylinder means housing said piston means and guiding the latter for movement along said axis thereof, said cylinder means forming a servocontrol with said piston means and said cylinder means being formed with an overflow bore extending through a wall of said cylinder means to be covered and uncovered by said piston means, said piston means being rotatable within said cylinder means as well as being axially movable therein, a manually operable speed control means, slide valve means communicating with said cylinder means for controlling the flow of pressure fluid into said Cylinder means at opposite sides of said piston means, centrifugal governor means coacting with said slide valve means for controlling the latter, linkage means coacting with said speed control means, governor means, and piston means for controlling said governor means and said piston means in response to actuation of said speed control means while freeing said piston means for rotary movement about its axis, and metering means operatively connected with said linkage means for metering the supply of fuel to the engine according to the axial position of said piston means in said cylinder means.
Claim 3
Dependent Claim
137 words
The combination of claim 1 and wherein said piston means has circumferentially distributed about its axis four inclined control surfaces in the form of projections defining at the exterior of said piston means four chambers distributed circumferentially thereabout and forming one pair of opposed charging chambers and another pair of opposed discharge chambers, said piston means being formed with one pair of passages providing communication between said charging chambers and one side of said piston means and with a second pair of passages providing communication between said discharge chambers and the other side of said piston means, and said cylinder means being formed in a plane perpendicular to said piston axis with a pair of opposed charging bores communicating with chambers said charging chambers and with a pair of opposed overflow bores communicating with said discharge chambers.
Claim 4
Dependent Claim
67 words
The combination of claim 2 and wherein said piston means is a differential piston means having at its opposite sides different effective areas the smaller of which is in constant communication with a distribution chamber of said slide valve means and the larger of which is placed in intermittent communication with said distribution chamber by the control of said slide valve means through said centrifugal governor means.
Claim 5
Dependent Claim
28 words
The combination of claim 3 and wherein a fuel control means is operatively connected to said piston means for regulating the angular position thereof in said cylinder means.
Claim 6
Dependent Claim
40 words
The combination of claim 1 and wherein a cam means is situated between said speed control means and linkage means for controlling said linkage means according to a predetermined program to provide predetermined fuel supplies at certain engine speed ranges.
Claim 7
Dependent Claim
35 words
The combination of claim 5 and wherein said linkage means includes a bellcrank and bevel gear transmission for converting rotary movement of said cam means into angular movement of said piston means about its axis.
References Cited (Backward Citations)
US3067581A
Cited
US2624326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |