Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1980-10-01
1982-05-25
Lazarus, Ira S.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123365, 123367, 123332, 123397, F02B 7708, F02D 100
Patent
active
043311148
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
This invention relates to engines, and more particularly, to means for insuring engine stoppage by application of a momentary force thereto.
2. Background Art
Numerous techniques exist for stopping an engine in the normal course of operation such as valving off a fuel line at any one of several possible locations and reducing the engine speed below that necessary to maintain operation. On industrial engines it is common practice to include a governor or engine speed maintaining device which adjusts the quantity of fuel sent to the engine combustion chambers so as to maintain constant engine RPM for various loads imposed thereon. The governor usually has a shut-off member which, when moved from an operational position to a shut-off position, halts the engine by overriding the governor's spring which is used to maintain the speed of the engine. The governor shut-off members are typically activated by electrically actuated solenoids or other displacement devices whose control is accessible from the engine operator's work station.
Adverse circumstances sometimes occur that necessitate engine stoppage from a location remote from the operator's work station. Such circumstances include emergency conditions where the controls to the normal shut-off activation devices are inaccessible or inoperative. When such adverse conditions arise, it has been found desirable to have an auxiliary engine stoppage device accessible from a location spacially separated from the operator's work station.
A device used heretofore for remotely stopping an engine constituted a flexible cable which was attached to the engine's governor shut-off member. Stoppage of an engine so equipped required cable withdrawal and securement thereof in the withdrawn position until the engine revolutions gradually slowed and the engine shutdown. Securement of the cable in such withdrawn position was necessary since, without such securement, the engine governor's own spring for maintaining the operator-selected speed would retract the cable and again maintain the engine in the operational mode. In an emergency situation it was found to be impractical for one to hold such cable in a withdrawn position except for a very short period of time. Additionally, excessive force on the cable sometimes damaged the cable and/or other governor components since the cable was connected directly to the governor shut-off member. As such, the previously-used device had some characteristics which proved disadvantageous.
More recently, a cable and latching mechanism were used in concert to stop the engine by withdrawing a flexible cable which displaced the governor shut-off member to a shutdown position and then latching the cable in the withdrawn position to prevent retraction of the cable and return of the governor shut-off member to the operational position by the governor spring. Such latching mechanism must, by necessity, be installed in an easily accessible location which typically means it is subjected to weather and other adverse elements which could reduce the latch mechanism's operability. Furthermore, use of such latching mechanism did not eliminate the possibility of governor damage when the flexible cable was rapidly withdrawn such as during an emergency situation. Accordingly, the present invention is intended to overcome one or more of the aforementioned problems.
DISCLOSURE OF THE INVENTION
In accordance with the present invention an auxiliary apparatus for stopping an engine is provided in association with a governor apparatus having an engine stoppage member which may be moved between engine operation and engine shutdown positions. The present invention generally includes a stationary frame member, an actuating link which is in sliding engagement with the frame member and is displaceable between operational and shutdown positions, and an engagement apparatus which is attached to the engine stoppage member and is displaceable to operational and shutdown positions when the actuating link occupies operation and shutdown posit
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patent: 2854964 (1958-10-01), Wagner
patent: 3237478 (1966-03-01), Jewell
patent: 3603300 (1971-09-01), Moffett
patent: 3640258 (1972-02-01), Isobe et al.
patent: 3865090 (1975-02-01), Masters et al.
patent: 4072332 (1978-02-01), Isaia
patent: 4108129 (1978-08-01), Rognon
Caterpillar Tractor Co.
Keen Joseph W.
Lazarus Ira S.
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