Fire truck booster pump
First Claim
1. A booster pump for a fire truck for maintaining a fluid pressure at an inlet of a primary pump above a cavitation fluid pressure, the booster pump comprising:
- a suction hose including a suction end and a feed end;
a booster tube including inlet and outlet ends and a nozzle between the inlet and outlet ends, the inlet end being connected to the feed end of the suction hose;
a primary pump hose including a first end and a second end, the first end being connected to the outlet end of the booster tube, the second end being connected to the inlet of the primary pump; and
a bleed hose including a main end and a boost end, the main end being connected to an outlet of the primary pump and the boost end being connected to the nozzle, the bleed hose selectively diverting a bleed fluid portion of the volumetric output fluid flow from the primary pump to the nozzle, the nozzle injecting the bleed fluid portion into the booster tube to regulate a fluid pressure at the inlet of the primary pump.
1 Assignment
0 Petitions
Accused Products
Abstract
A booster pump for maintaining a fluid pressure at an inlet of a primary pump above a cavitation fluid pressure includes a suction hose, a booster tube, a primary pump hose and a bleed hose. The suction hose has a suction end and a feed end. The booster tube includes inlet and outlet ends and a nozzle. The inlet end is connected to the feed end. The primary pump hose includes a first end and a second end and the first end is connected to the outlet end while the second end is connected to the inlet of the primary pump. The bleed hose includes a main end and a boost end with the main end being connected to the outlet of the primary pump and the boost end being connected to the nozzle. The bleed hose selectively diverts a bleed fluid portion from the primary pump for injection into the booster tube.
31 Citations
21 Claims
-
1. A booster pump for a fire truck for maintaining a fluid pressure at an inlet of a primary pump above a cavitation fluid pressure, the booster pump comprising:
-
a suction hose including a suction end and a feed end;
a booster tube including inlet and outlet ends and a nozzle between the inlet and outlet ends, the inlet end being connected to the feed end of the suction hose;
a primary pump hose including a first end and a second end, the first end being connected to the outlet end of the booster tube, the second end being connected to the inlet of the primary pump; and
a bleed hose including a main end and a boost end, the main end being connected to an outlet of the primary pump and the boost end being connected to the nozzle, the bleed hose selectively diverting a bleed fluid portion of the volumetric output fluid flow from the primary pump to the nozzle, the nozzle injecting the bleed fluid portion into the booster tube to regulate a fluid pressure at the inlet of the primary pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A fire truck for drawing fluid through a suction hose and dispensing the fluid from a fire hose, the fire truck comprising:
-
a primary pump positioned approximately at a mid-ship of the fire truck and supported by the fire truck, the fire hose being in fluid communication with the primary pump;
a booster tube mounted to the fire truck, the booster tube being in fluid communication with the suction hose and a primary pump hose, fluid flowing from the suction hose, through the booster tube and into the primary pump hose, the primary pump hose being in fluid communication with the primary pump at an inlet of the primary pump; and
a bleed hose in fluid communication with the primary pump and the booster tube, the bleed hose diverting a bleed fluid portion of an output fluid flow from the primary pump and injecting the bleed fluid portion into fluid flowing through the booster tube. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
-
16. A method for boosting a volumetric output fluid flow of a primary pump of a fire truck when drawing fluid from a suction hose by mounting a booster tube between a suction end of the suction hose and an inlet of the primary pump, the primary pump and the booster tube being in fluid communication through a primary pump hose and a bleed hose, the method comprising the steps of:
-
a) inserting the suction end into a fluid source;
b) drawing fluid from the fluid source using the primary pump through the suction hose, through the booster tube, through the primary pump hose and into the primary pump;
c) drawing a bleed fluid portion of the fluid flowing out of the primary pump into the bleed hose; and
d) injecting the bleed fluid portion into the fluid flowing through the booster tube. - View Dependent Claims (17, 18, 19, 20, 21)
-
Specification