MXPA99008219A - Water discharge deposit to power with better air inducer - Google Patents

Abstract

The present invention relates to a pressurized water discharge system for use in a toilet tank that includes a housing with a water inlet duct, an air and water inlet assembly connected to the duct and the housing, and a Water outlet for accommodation. A water discharge valve is located inside the housing to control the flow of water coming from the inlet to the outlet of the housing. The water and air inlet assembly includes a chamber, with a water inlet connected to the chamber, and an outlet connected to the chamber. An air inlet that is accessible to air at atmospheric pressure and a passage between the air inlet and the chamber. A check valve is located in the passage, with the check valve opening in response to the venturi effect caused by the flow of water through the chamber to suck air into the chamber to mix with the water flowing through the chamber. camera at the exit. The check valve includes an elastomeric sleeve positioned within the passage and having normally closed flexible rims extending into the chamber. The flanges open to allow the passage of air inside the chamber to mix with the water inside it when there is a pressure in the chamber lower than the atmospheric

Description

DEPOSIT OF DISCHARGE OF WATER TO POWER WITH INDUCTOR OF AIR EJORADO DESCRIPTION OF THE INVENTION The present invention relates to pressurized water discharge systems such as those shown in U.S. Patent 4,233,698 assigned to the owner of the present application, Sloan Valve Company of Franklin Park, Illinois. More specifically, the invention relates to the air inducer assembly which sucks air into the pressure reservoir of the water discharge system to provide the pressure to discharge the water therefrom. The air inducer assembly is connected to the water inlet conduit and to the air at atmospheric pressure, in a manner that the water flow from the conventional water supply will suck air into the reservoir to pressurize the reservoir. The invention is more particularly directed to a specific type of check valve that is part of the air-inducing assembly, whose check valve reduces the level of water noise and air flow within the reservoir and is effective in preventing the flow of moisture that leaves the air inlet, which eliminates the infiltration of water into the toilet tank. The present invention relates to pressurized water discharge systems that are used in toilet tanks and more particularly to an improved check valve for use in the air-inducing assembly of such a pressurized water discharge system. A principal purpose of the invention is an improved check valve for the air inductor of a pressurized water discharge system, whose check valve eliminates the infiltration of water into the toilet tank and reduces the quenching noise with circulation of water. air. Another purpose is a check valve for the described use which allows free flow with a positive pressure difference, but provides interruption to negative pressure differentials. Another purpose is a reliable check valve constructed simply for the described use which resists corrosion and wear, and which cleans itself and is easy to assemble. Other purposes will appear in the resulting specification, drawings and claims. BRIEF DESCRIPTION D? THE DRAWINGS The invention is illustrated schematically in the following drawings in which: Figure 1 is a side view of a pressurized water discharge system, the portions of which are cut away to show the interior of the discharge valve.

Figure 2 is an enlarged side view of the air inducer assembly; Figure 3 is a top view of the air inducer assembly; and Figure 4 is a section along plane 4-4 of Figure 2. Pressure water discharge systems such as those shown in U.S. Patent 4,233,698, which is incorporated herein by reference, uses a pressure tank which is normally placed inside the tank of a gravity-style toilet. Water at a pipe pressure flows into the pressure tank and the water flow sucks air into the pressure tank, so that the water inside the tank is at a pipe pressure, which can be from 20 to 80 psi. In some applications, a pressure regulator is provided which maximizes the pressure within the reservoir at 35 psi. The advantage of such a system is that when the water is discharged from the toilet and the water discharge valve inside the pressure vessel is operated, the water is forced from the discharge of the pressure vessel into the toilet bowl to discharge quickly and completely its content. The pressure water discharge system has been in the market for a large number of years. The present invention is more specifically directed to the air inductor which sucks air into the pressure vessel as the water flows from the water supply into the pressure vessel. In Figure 1, the pressure reservoir is indicated at 10 and may have an upper section 12 and a lower section 14, both of which may be made of a suitable plastic. There is an outlet 16 of the bottom of the tank and this outlet will conventionally be connected to the toilet bowl. The water inlet conduit is indicated at 18 and will provide water at a pipe pressure to an air and water inlet assembly 20 which is connected to the inside of the tank. A water discharge valve is usually indicated at 22 and when the water discharge valve is operated, normally by manual operation of the toilet, the water inside the tank 10 will be discharged through the outlet 16. Other and more complete details of the pressurized water discharge system are described in the '698 Patent. The present invention relates more specifically to the assembly of air and water 20 and the manner in which it provides air to be sucked into the reservoir and the seal for the assembly to prevent water from seeping into the area outside the reservoir. , but inside the toilet tank that surrounds it.

The assembly 20 includes a housing 24 within which an annular chamber 26 is formed. There is a water inlet indicated at 28 which is in communication with the annular chamber 26. An outlet is indicated at 30, with the outlet discharging water and air within the confines of the reservoir 10. An air inlet is indicated at 32 and is in communication with the passage 34. The passage 34 has a first portion 36 adjacent to the inlet 32, an intermediate portion of a larger diameter indicated at 38 , and then a termination portion 40 which is coaxial with the annular chamber 26 and opens within the outlet 30. Located within the intermediate portion 38 of the passageway 34 is a check valve 42 which is made of a material plastic or elastomeric type flexibLe and has an outwardly extending flange 44 which is used to mount the check valve 42 between an adapter 46 that forms the air inlet and a threaded portion e Thereafter, the check valve 42 has a pair of normally closed flexible tapered flanges 50 facing the chamber 26 and which will open as will be described below to allow air to flow to the outlet 30. The check valve 42 is commonly referred to as duckbill due to the normally closed tapered seal flanges 50. When the tank 10 is being filled with water from the supply to the pipe 18, water will flow from the inlet 28 into the annular chamber 26 .

The flow of water within this chamber and to outlet 30 will create a venturi effect in relation to the termination portion 40 of passage 34. In this way, the area directly adjacent to the termination of passage portion 40 will be at a pressure less than atmospheric, whereby the air outside the reservoir 10 and the air inlet 32 will be at an atmospheric pressure. The positive pressure differential will cause air to flow through the check valve 42 with the duck spikes or flanges 50 opening to allow the passage of such air. In this way, the water flowing out of the outlet 30 has air included in it, as the air is sucked in by the venturi effect caused by the ratio of the chamber 26 and the terminal portion 40 of the passage 34. When the The reservoir has been filled to a desired level such that the compressed air within the reservoir resists the flow of any other water within it, the water will no longer flow into the chamber 26 and the flexible ridges 50 will be closed. This will seal the air inlet preventing any infiltration of water out through it and into the area surrounding the tank 10, but inside the toilet tank.

The particular type of check valve seal shown and described herein is advantageous, since it prevents the infiltration of water into the toilet tank, allowing the tank to remain in a desirable dry condition. Furthermore, it has been shown that this particular type of check valve substantially reduces the noise prevented with air circulation normally associated with the filling of a pressurized water discharge system such as that described herein. The check valve cleans itself in such a way that dust or particles that lodge in the valve will be forced through the valve by the air passage-Also, because the valve is made of an elastomeric material , it will not corrode. -While the preferred form of the invention has been shown and described herein, it should be understood that there may be many modifications, substitutions and alterations thereof.

Claims (4)

1. -REIVIISIDICATIONS 1. A system for discharging pressurized water for use in a toilet tank characterized in that it includes a housing, a water inlet duct, a water and air inlet assembly connected to the duct and the housing, an outlet of water for such housing, water discharge valve means within the housing for controlling the flow of water coming from such housing to the outlet, such water and air inlet assembly includes a chamber, a water inlet connected to the chamber and the duct, an outlet connected to the chamber, an air inlet accessible to the air at an atmospheric pressure, a passage in the assembly between the air inlet and the chamber, a check valve in the passage, the valve check opening in response to a venturi effect caused by the flow of water through the chamber to suck air into the chamber to mix with the water flowing through the chamber to the chamber. outlet, the check valve includes an elastomeric sleeve positioned within the passage and having normally closed flexible rims extending into the chamber, the rims open to allow passage of air into the chamber when there is a pressure in the chamber less than the atmospheric
2. 2. The pressurized water discharge system according to claim 1, characterized in that the check valve has two normally closed flexible flanges, whose flanges are in contact with the pipe when closed. The pressurized water discharge system according to claim 2, characterized in that the flanges are tapered from a dimension equal to the diameter of the sleeve to a contact area with the pipe. 4. The pressurized water discharge system according to claim 1, characterized in that the chamber includes a ring having an opening connected to the water inlet, the passage is coaxial with the ring and having a coextensive termination thereof. .