Automatic start additive injection system for fire-fighting vehicles
First Claim
Patent Images
1. A fluid delivery system for fire-fighting vehicles comprising:
- a hydraulic system including a hydraulic pump coupled to a hydraulic manifold block, hydraulic fluid pressure in the hydraulic system increasing in response to engagement of the hydraulic pump;
a water pump in communication with the hydraulic pump whereby the hydraulic pump is automatically engaged upon engagement of the water pump;
an additive injection system coupled to the hydraulic manifold block;
a pressure switch in communication with the hydraulic system; and
a controller in communication with the pressure switch.
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Abstract
An additive pump system for fire-fighting vehicles is automatically engaged when the water pump is engaged. Upon engagement of the water pump, the water pump communicates with a hydraulic pump to engage the hydraulic pump. Engagement of the hydraulic pump results in a rise in hydraulic pressure. A pressure switch is tripped when a pressure of a pre-determined set point is reached. The pressure switch communicates with a controller to indicate that sufficient pressure has been obtained. In response to the receiving the signal of sufficient hydraulic pressure, the controller signals the additive pump system to engage the additive pump system.
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Citations
19 Claims
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1. A fluid delivery system for fire-fighting vehicles comprising:
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a hydraulic system including a hydraulic pump coupled to a hydraulic manifold block, hydraulic fluid pressure in the hydraulic system increasing in response to engagement of the hydraulic pump;
a water pump in communication with the hydraulic pump whereby the hydraulic pump is automatically engaged upon engagement of the water pump;
an additive injection system coupled to the hydraulic manifold block;
a pressure switch in communication with the hydraulic system; and
a controller in communication with the pressure switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A fluid delivery system for fire-fighting vehicles comprising:
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a hydraulic system including a hydraulic pump coupled to a hydraulic manifold block, hydraulic fluid pressure in the hydraulic system increasing in response to engagement of the hydraulic pump;
a water pump in communication with the hydraulic pump whereby the hydraulic pump is automatically engaged upon engagement of the water pump;
an additive injection system coupled to the hydraulic manifold block;
means for detecting hydraulic fluid pressure in the hydraulic system; and
means for automatically engaging the additive pump system when the detected hydraulic fluid pressure passes a pre-determined set point. - View Dependent Claims (13)
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14. A fluid delivery system for fire-fighting vehicles comprising:
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an additive injection system coupled to a hydraulic pump system;
means for detecting engagement of the hydraulic pump system; and
means for automatically engaging the additive injection system upon detection of engagement of the hydraulic pump system. - View Dependent Claims (15)
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16. A fluid delivery system for fire-fighting vehicles comprising:
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a hydraulic system including a hydraulic pump coupled to a hydraulic manifold block, a characteristic of hydraulic fluid in the hydraulic system changing in response to engagement of the hydraulic pump;
a water pump in communication with the hydraulic pump whereby the hydraulic pump is automatically engaged upon engagement of the water pump;
an additive injection system coupled to the hydraulic manifold block;
means for detecting a change in the characteristic of the hydraulic fluid; and
means for automatically engaging the additive injection system upon detection of the change in the characteristic of the hydraulic fluid. - View Dependent Claims (17)
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18. A fluid delivery system for fire-fighting vehicles comprising:
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a hydraulic system including a hydraulic pump coupled to a hydraulic manifold block, a characteristic of hydraulic fluid in the hydraulic system changing in response to engagement of the hydraulic pump;
a water pump in communication with the hydraulic pump whereby the hydraulic pump is automatically engaged upon engagement of the water pump;
a compressed air injection system coupled to the hydraulic system;
means for detecting a change in the characteristic of the hydraulic fluid; and
means for automatically engaging the compressed air injection system upon detection of the change in the characteristic of the hydraulic fluid. - View Dependent Claims (19)
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Specification