Venturi-type liquid pump

Abstract

A venturi-type liquid pump is provided. The pump includes a supply line having a front end and a rear end, wherein the front end of the supply line includes a connector for connecting a supply of pressurized liquid to the supply line and the rear end of the supply line includes a nozzle having an exit orifice through which the pressurized liquid exits the supply line. The pump further includes a suction line having a first end and a second end, wherein the suction line is positioned in relation to the supply line to define a gap between the exit orifice and the first end such that the pressurized liquid exiting the exit orifice traverses the gap and entrains a second liquid within the gap before entering the first end of the suction line together with the entrained second liquid.

1 . A venturi-type pump, comprising:
 a supply line having a front end and a rear end;   a suction line having a first end and a second end; and   a gap between the rear end of the supply line and the first end of the suction line,   wherein the gap is defined by the position of the suction line in relation to the supply line, the gap being configured such that a pressurized liquid flowing through the supply line and exiting the supply line traverses the gap and entrains a second liquid within the gap before entering the first end of the suction line together with the entrained second liquid.   
     
     
         2 . The venturi-type pump of  claim 1 , further comprising:
 a nozzle in the rear end of the supply line, the nozzle defining an exit orifice through which the pressurized liquid flowing through the supply line exits the supply line.   
     
     
         3 . The venturi-type pump of  claim 1 , wherein the pressurized liquid and the entrained second liquid flow through the suction line and exit the suction line at the second end of the suction line. 
     
     
         4 . The venture-type pump of  claim 3 , wherein a volume of liquid that exits the suction line is greater than a volume of liquid that enters the supply line. 
     
     
         5 . The venturi-type pump of  claim 2 , wherein the nozzle further comprises:
 a first tapered portion; and   a second tapered portion,   wherein the first tapered portion tapers toward the second tapered portion and the second tapered portion tapers toward the rear end of the supply line, the first tapered portion being tapered at an angle greater than a tapered angle of the second tapered portion, the second tapered portion defining the exit orifice.   
     
     
         6 . The venturi-type pump of  claim 1 , wherein the supply line and the suction line are cylindrical in shape. 
     
     
         7 . The venturi-type pump of  claim 1 , wherein the suction line further comprises a main body portion and the supply line further comprises a main body portion, and wherein the main body portions are coupled together in parallel along an axial length of the main body portions. 
     
     
         8 . The venturi-type pump of  claim 1 , the suction line further comprises a concave portion, wherein the concave portion defines a venturi and the concave portion is positioned in an initial length of the suction line beginning from the first end of the suction line. 
     
     
         9 . The venturi-type pump of  claim 8 , wherein the diameter of the first end of the suction line is greater than the diameter of the main body of the suction line. 
     
     
         10 . The venturi-type pump of  claim 1 , wherein the front end of the supply line and the second end of the suction line are structurally configured to detachably receive connecting hoses through which liquid is supplied to and removed from, respectively, the pump. 
     
     
         11 . The venturi-type pump of  claim 10 , wherein the front end of the supply line is structured to be a quick snap connector for releasably connecting a pressurized supply of liquid to the front end, and the second end of the suction line is structured to releasably couple to a hose-like tubing. 
     
     
         12 . The venturi-type pump of  claim 11 , wherein the front end of the supply line is positioned at an angle relative to the main body portion of the supply line such that the quick snap connector does not interfere with the hose-like tubing. 
     
     
         13 . The venturi-type pump of  claim 1 , wherein the structure of the suction line in relation to the supply line allows the first end of the suction line to contact a bottom surface of a body of water in which the pump is submerged so that the pump can remove the body of water. 
     
     
         14 . The venturi-type pump of  claim 1 , wherein the radial circumferential wall thickness of the supply line and the suction line are sufficient to withstand the pressure within the respective lines. 
     
     
         15 . A venturi-type pump, the pump comprising:
 a cylindrical supply line having a terminal end;   a cylindrical suction line having an initial end, the suction line being coupled in parallel to the supply line along an axial length of the supply line;   a gap between the terminal end of the supply line and the initial end of the suction line;   a nozzle defined by the terminal end of the supply line;   a concave section in the suction line, the concave section beginning at the initial end of the suction line;   wherein the supply line receives a pressurized flow of liquid that flows through the supply line, and   further wherein the gap is configured such that the flow of pressurized liquid exits the supply line at the terminal end and, under the condition that the pump is submerged in a body of liquid, entrains the body of liquid proximate the gap as the pressurized liquid traverses the gap, and   further wherein the entrained liquid and the pressurized liquid enter the initial end of the suction line together.   
     
     
         16 . The venturi-type pump of  claim 15 , wherein the terminal end of the supply line defines an exit orifice, the exit orifice being structured to shape the pressurized liquid exiting the terminal end into a pressurized stream and the exit orifice being positioned in substantially the center of a cross-section of the supply line, such that the pressurized stream that traverses the gap enters the initial end of the suction line in a central cross-sectional portion of the suction line, whereas the entrained liquid enters the initial end of the suction line in and around all sides of the pressurized stream. 
     
     
         17 . The venturi-type pump of  claim 15 , wherein a direction of the liquid flowing through a portion of the supply line is opposite a direction of the liquid flowing through the suction line. 
     
     
         18 . The venturi-type pump of  claim 15 , the nozzle further comprising:
 a first tapered portion; and   a second tapered portion,   wherein the first tapered portion tapers toward the second tapered portion and the second tapered portion tapers toward the terminal end of the supply line, the first tapered portion being tapered at an angle greater than a tapered angle of the second tapered portion.   
     
     
         19 . The venturi-type pump of  claim 15 , wherein a volume of liquid that exits the suction line is greater than a volume of liquid that enters the supply line. 
     
     
         20 . A liquid-removal system, the system comprising:
 a pressurized supply of liquid;   the venturi-type pump of  claim 1  immersed in a standing body of liquid; and   a drain hose,   wherein the pressurized supply of liquid is releasably coupled to the supply line and provides the pressurized flow of water through the pump and the drain hose is releasably coupled to the suction line and drains the flow of liquid from the suction line.