Patent DE485867C successfully refreshed from Google Patents.
Patent US3913546A successfully refreshed from Google Patents.
US3913546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horsepower limiter and overfueling control mechanism
Assignee: Caterpillar Inc
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Filing: 1972-12-18
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Granted: 1975-10-21
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Expires: 1992-12-18
Abstract
Abstract A horsepower limiter and overfueling control mechanism for an internal combustion engine having a fuel pump with a fuel control device operatively associated therewith for regulating the horsepower output of the engine which includes a movable member having a first position disposed in non-interfering relation with the operation of the fuel control device permitting it to move to an overfueling position for starting the engine and a second position restricting the range of operation of the fuel control device to limit the maximum horsepower output of the engine. An adjustment device is operatively associated with the movable member for selectively varying the range of operation of the fuel control device while permitting the movable member freely to move between its first and second positions in all settings of the adjustment device for attaining said horsepower limiting and overfueling functions with a single control.
Inventors
- 👤 Jerry A Clouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:26
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M59/447
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
479 words
A horsepower limiter and overfueling control mechanism, for an internal combustion engine having a fuel pump and a fuel control device operatively associated therewith for regulating the horsepower output of the engine, comprising; a stop surface formed on such fuel control device; an elongated movable rod disposed adjacent to the fuel control device, said movable rod having opposite ends and a first position disposed in non-interferring relation with said stop surface to permit the fuel control device to be moved to an overfueling position for starting such engine and movable to a second predetermined positively located position in which one of said ends is adapted for selective direct engagement with said stop surface for restricting the range of operation of the fuel control device to establish the maximum fuel output of sUch fuel pump to limit the maximum horsepower output of the engine; means responsive to operation of the engine for moving said movable rod to said second position including a reciprocatable piston operatively attached to said movable rod and disposed coaxial therewith; a housing having a first cylindrical bore disposed adjacent to the fuel control device with said movable rod being slidably disposed in said cylindrical bore, a second cylindrical bore disposed coaxially with said first cylindrical bore and terminating in an annular shoulder, said piston being disposed in said second cylindrical bore for moving said movable rod between said first and second positions with said second position being established by engagement between said piston and said annular shoulder, and a third bore formed between said first and second cylindrical bores; a source of pressurized fluid in communication with said second bore for moving said piston to said second position; biasing means disposed in said third bore for resiliently urging said piston and said movable rod to said first position when said source of pressurized fluid is interrupted; and adjustment means integral with said movable rod including a threaded portion formed on the other of said ends of said elongated rod and screw-threadably received coaxially by said piston for adjustably attaching the other end of said elongated rod to said piston, a tool receiving notch formed in said piston and tool receiving means formed in said other end of said elongated rod for effecting rotation of said elongated rod relative to said piston to vary the disposition of said one end of said elongated rod relative to said stop surface on the fuel control device and said piston when said piston is in said second position for selectively varying the range of operation of the fuel control device to vary said maximum horsepower output of the engine when the movable rod is in its second position while maintaining the non-interferring relation between the movable rod and the stop surface in all settings of the adjustment means for obtaining said horsepower limiting and overfueling functions with a single control.
Claim 2
Dependent Claim
479 words
A horsepower limiter and overfueling control mechanism, for an internal combustion engine having a fuel pump and a fuel control device operatively associated therewith for regulating the horsepower output of the engine, comprising; a stop surface formed on such fuel control device; an elongated movable rod disposed adjacent to the fuel control device, said movable rod having opposite ends and a first position disposed in non-interferring relation with said stop surface to permit the fuel control device to be moved to an overfueling position for starting such engine and movable to a second predetermined positively located position in which one of said ends is adapted for selective direct engagement with said stop surface for restricting the range of operation of the fuel control device to establish the maximum fuel output of sUch fuel pump to limit the maximum horsepower output of the engine; means responsive to operation of the engine for moving said movable rod to said second position including a reciprocatable piston operatively attached to said movable rod and disposed coaxial therewith; a housing having a first cylindrical bore disposed adjacent to the fuel control device with said movable rod being slidably disposed in said cylindrical bore, a second cylindrical bore disposed coaxially with said first cylindrical bore and terminating in an annular shoulder, said piston being disposed in said second cylindrical bore for moving said movable rod between said first and second positions with said second position being established by engagement between said piston and said annular shoulder, and a third bore formed between said first and second cylindrical bores; a source of pressurized fluid in communication with said second bore for moving said piston to said second position; biasing means disposed in said third bore for resiliently urging said piston and said movable rod to said first position when said source of pressurized fluid is interrupted; and adjustment means integral with said movable rod including a threaded portion formed on the other of said ends of said elongated rod and screw-threadably received coaxially by said piston for adjustably attaching the other end of said elongated rod to said piston, a tool receiving notch formed in said piston and tool receiving means formed in said other end of said elongated rod for effecting rotation of said elongated rod relative to said piston to vary the disposition of said one end of said elongated rod relative to said stop surface on the fuel control device and said piston when said piston is in said second position for selectively varying the range of operation of the fuel control device to vary said maximum horsepower output of the engine when the movable rod is in its second position while maintaining the non-interferring relation between the movable rod and the stop surface in all settings of the adjustment means for obtaining said horsepower limiting and overfueling functions with a single control.
Claim 3
Dependent Claim
36 words
The horsepower limiter and overfueling control mechanism of claim 1 wherein said adjustment means includes a conical tip formed on said one end of said elongated rod adapted for adjustable variable engagement with said stop surface.
Claim 4
Dependent Claim
39 words
The horsepower limiter and overfueling control mechanism of claim 2 wherein the fuel control device includes an elongated shaft, having a notch formed therein transverse to its longitudinal axis for forming said stop surface of the fuel control device.
Claim 5
Dependent Claim
73 words
The horsepower limiter and overfueling control mechanism of claim 1 including a plug fixedly secured within said second bore of said housing to limit the movement of said piston toward said first position and forming a chamber in said housing for receiving said pressurized fluid, said plug having a passage formed therein, and said housing including a passageway formed therein for communicating said passage of said plug with said source of pressurized fluid.
Claim 6
Dependent Claim
18 words
The horsepower limiter and overfueling control mechanism of claim 1 wherein said housing is a fuel pump housing.
Claim 7
Dependent Claim
323 words
A horsepower limiter and overfueling control mechaniam, for an internal combustion engine having a fuel pump and a fuel control device operatively associated therewith for regulating the horsepower output of the engine, comprising; a stop surface formed on such fuel control device; a housing having a first cylindrical bore disposed adjacent to the fuel control device, and a second cylindrical bore disposed coaxial with said first bore and terminating in an annular shoulder; an elongated movable rod slidably disposed in said first bore having opposite ends; a reciprocatable piston slidably disposed in said second bore and operatively attached to said movable rod for moving it between a first position in non-interferring relation to said stop surface and a second positively located position in which one of said ends is adapted for selective direct engagement with said stop surface, said second position being established by engagement between said piston and said annular shoulder; a source of pressurized fluid in communication with said second bore for moving said piston and said movable rod to said second position; biasing means for resiliently urging said piston and said movable rod to said first position when said source of pressurized fluid is interrupted; and adjustment means intergral with said movable rod including a threaded portion formed on the other of said ends of said elongated rod and screw-threadably received coaxially by said piston for adjustably attaching said elongated rod to said piston, a tool receiving notch formed in said piston and tool receiving means formed in said other end of said elongated rod for effecting rotation of said elongated rod relative to said piston to vary the disposition of said one end of said elongated rod relative to said stop surface on the fuel control device and said piston when said piston is in said second position for selectively varying the range of operation of the fuel control device to vary the maximum horsepower output of the engine.
Claim 8
Dependent Claim
323 words
A horsepower limiter and overfueling control mechaniam, for an internal combustion engine having a fuel pump and a fuel control device operatively associated therewith for regulating the horsepower output of the engine, comprising; a stop surface formed on such fuel control device; a housing having a first cylindrical bore disposed adjacent to the fuel control device, and a second cylindrical bore disposed coaxial with said first bore and terminating in an annular shoulder; an elongated movable rod slidably disposed in said first bore having opposite ends; a reciprocatable piston slidably disposed in said second bore and operatively attached to said movable rod for moving it between a first position in non-interferring relation to said stop surface and a second positively located position in which one of said ends is adapted for selective direct engagement with said stop surface, said second position being established by engagement between said piston and said annular shoulder; a source of pressurized fluid in communication with said second bore for moving said piston and said movable rod to said second position; biasing means for resiliently urging said piston and said movable rod to said first position when said source of pressurized fluid is interrupted; and adjustment means intergral with said movable rod including a threaded portion formed on the other of said ends of said elongated rod and screw-threadably received coaxially by said piston for adjustably attaching said elongated rod to said piston, a tool receiving notch formed in said piston and tool receiving means formed in said other end of said elongated rod for effecting rotation of said elongated rod relative to said piston to vary the disposition of said one end of said elongated rod relative to said stop surface on the fuel control device and said piston when said piston is in said second position for selectively varying the range of operation of the fuel control device to vary the maximum horsepower output of the engine.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |