Display control apparatus for use in internal combustion engine
First Claim
1. A display apparatus for indicating the level of a fluid in a fluid container, comprising:
- a float switch which is disposed in said container and which includes a plurality of vertically spaced level switches and a vertically movable float, each said level switch being actuated by said float when said float is substantially vertically aligned therewith;
keep means responsive to said float switch and having a plurality of operational states which correspond in number to the number of said level switches of said float switch, wherein in response to actuation of each said level switch said keep means is set to a respective one of said operational states and remains therein after deactuation of such level switch until set to a different said operational state by actuation of a different said level switch; and
display means responsive to said keep means for providing an operator perceptible display of the operational state to which said keep means is currently set;
wherein said float switch has a first said level switch which is the uppermost of said level switches, a second said level switch below said first level switch, a third said level switch below said second level switch, and a fourth said level switch below said third level switch;
wherein said keep means is respectively set to first, second, third and fourth said operational states in response to actuation of said first, second, third and fourth level switches, respectively;
wherein said display means includes a first light element, a second light element disposed below said first light element, a third light element disposed below said second light element, and a fourth light element disposed below said third light element;
wherein said first, second and third light elements are actuated and said fourth light element is deactuated when said keep means is in said first operational state, wherein said second and third light elements are actuated and said first and fourth light elements are deactuated when said keep means is in said second operational state;
wherein said third light element is actuated and said first, second and fourth light elements are deactuated when said keep means is in said third operational state, and wherein said fourth light element is actuated and said first, second and third light elements are deactuated when said keep means is in said fourth operational state.
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Accused Products
Abstract
A display control apparatus for use in an internal combustion engine includes: a CDI type ignition circuit; an overspeed preventing circuit which can limit the engine speed to a restricted value; a first LED display unit of the light on/off type to display the amounts of oil and/or cooling water; a second LED display unit to display the circulation state of the oil and/or cooling water; and a drive circuit which switches the first and second display units to an alarm display mode and causes the overspeed preventing circuit to limit engine speed when abnormal states of the oil and/or cooling water are detected by oil level switches or by water and oil flow sensors. If power ceases, the display state is held by keep relays. When an abnormal state is detected, the driver is warned by lighting up of red LEDs and by generating a beeping sound from a buzzer.
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Citations
12 Claims
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1. A display apparatus for indicating the level of a fluid in a fluid container, comprising:
- a float switch which is disposed in said container and which includes a plurality of vertically spaced level switches and a vertically movable float, each said level switch being actuated by said float when said float is substantially vertically aligned therewith;
keep means responsive to said float switch and having a plurality of operational states which correspond in number to the number of said level switches of said float switch, wherein in response to actuation of each said level switch said keep means is set to a respective one of said operational states and remains therein after deactuation of such level switch until set to a different said operational state by actuation of a different said level switch; and
display means responsive to said keep means for providing an operator perceptible display of the operational state to which said keep means is currently set;
wherein said float switch has a first said level switch which is the uppermost of said level switches, a second said level switch below said first level switch, a third said level switch below said second level switch, and a fourth said level switch below said third level switch;
wherein said keep means is respectively set to first, second, third and fourth said operational states in response to actuation of said first, second, third and fourth level switches, respectively;
wherein said display means includes a first light element, a second light element disposed below said first light element, a third light element disposed below said second light element, and a fourth light element disposed below said third light element;
wherein said first, second and third light elements are actuated and said fourth light element is deactuated when said keep means is in said first operational state, wherein said second and third light elements are actuated and said first and fourth light elements are deactuated when said keep means is in said second operational state;
wherein said third light element is actuated and said first, second and fourth light elements are deactuated when said keep means is in said third operational state, and wherein said fourth light element is actuated and said first, second and third light elements are deactuated when said keep means is in said fourth operational state. - View Dependent Claims (2, 3, 4)
- a float switch which is disposed in said container and which includes a plurality of vertically spaced level switches and a vertically movable float, each said level switch being actuated by said float when said float is substantially vertically aligned therewith;
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5. A display apparatus for use with an engine comprising:
- an oil level indicator which includes first, second and third light elements which emit a first light color when actuated and a fourth light element which emits a second light color when actuated, said second light element being disposed below said first light element, said third light element being disposed below said second light element, and said fourth light element being disposed below said third light element; and
means responsive to a high level of oil in the engine for causing said first, second and third light elements to be actuated and said fourth light element to be deactuated, and responsive to a subsequent progressive decrease of the oil level for causing said first and second light elements to be successively deactuated and for thereafter causing said third element to be deactuated and said fourth light element to be actuated. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
- an oil level indicator which includes first, second and third light elements which emit a first light color when actuated and a fourth light element which emits a second light color when actuated, said second light element being disposed below said first light element, said third light element being disposed below said second light element, and said fourth light element being disposed below said third light element; and
Specification