Abstract
A toilet bowl pressure flushing system with shock wave flushing is a compact rigid unit made by a fixed connection of: a rigid body of a pressure module containing at least one gas hydraulic accumulator and one downstream flow tank connected by at least one connection opening; an overflow pipe; an automatic hydraulic valve module comprising a core, an inlet and outlet elements of the automatic hydraulic valve, where the inlet element of the automatic hydraulic valve is connected to the outlet of the flow tank and where the outlet element of the automatic hydraulic valve feeds into the overflow pipe. At the same time it comprises an inlet from the pressure water supply that feeds into the rigid body of the pressure module or into the automatic hydraulic valve module.
Claims
1. A toilet bowl pressure flushing system with shock wave flushing comprising a gas hydraulic accumulator including: a rigid body of a pressure module containing the gas hydraulic accumulator and a downstream flow tank interconnected by at least one connection opening; an overflow pipe; and an automatic hydraulic valve module comprising a core, an inlet and outlet elements of the automatic hydraulic valve module, where the inlet element of the automatic hydraulic valve module is connected to an outlet of the downstream flow tank and where the outlet element of the automatic hydraulic valve module feeds into the overflow pipe; wherein the downstream flow tank comprises an inlet from a pressure water supply; wherein the rigid body of the pressure module comprises an inner vertical partition with the at least one connection opening located at a bottom of the rigid body, which partition divides the pressure module into the gas hydraulic accumulator and the downstream flow tank; and wherein an ejector of water distributed from the pressure water supply is connected to the inlet of the pressure water supply, and the ejector is connected simultaneously to the downstream flow tank of the pressure module and to a module of an automatic hydraulic closure.
2. A toilet bowl pressure flushing system with shock wave flushing according to claim 1 wherein the ejector is mounted outside of the downstream flow tank such that the inlet from the pressure water supply is connected to a propulsion nozzle of the ejector, wherein a suction inlet of the ejector is connected to the outlet of the downstream flow tank and a discharge outlet of the ejector feeds into the inlet element of the automatic hydraulic valve module.
3. A toilet bowl pressure flushing system with shock wave flushing according to claim 1 wherein the ejector is mounted inside the downstream flow tank such that the inlet from the pressure water supply is connected to a propulsion nozzle of the ejector, wherein a suction inlet of the ejector is located inside of the downstream flow tank and a discharge outlet of the ejector feeds through the outlet of the downstream flow tank into the inlet element of the automatic hydraulic valve module.
4. A toilet bowl pressure flushing system with shock wave flushing according to claim 1 wherein the overflow pipe is channeled through the gas hydraulic accumulator.
5. A toilet bowl pressure flushing system with shock wave flushing according to claim 1 wherein incorporated between the outlet element of the automatic hydraulic valve module and the overflow pipe is a flow breaker with permanent aeration by atmospheric air, which flow breaker comprises a nozzle, an outer sleeve with an aeration opening, wherein a bottom part of the nozzle is mounted in a safe distance above a flood line of the downstream flow tank.
Description
BRIEF DESCRIPTION OF DRAWINGS
(1) Accompanying drawings show a toilet bowl pressure flushing system with shock wave flushing according to the present invention, in which:
(2) FIG. 1 shows the front and left side view of a compact rigid unit with a single gas hydraulic accumulator.
(3) FIG. 2 shows the sectioned right side view of a compact rigid unit with a single gas hydraulic accumulator.
(4) FIG. 3 shows the sectioned right side view of a compact rigid unit with two gas hydraulic accumulators.
(5) FIG. 4 shows the sectioned side and front view of a compact rigid unit with two gas hydraulic accumulators.
(6) FIG. 5 shows the inlet from the pressure water supply fed from the top and directed perpendicular to the cross-sectional of the surface of the outlet of the flow tank.
(7) FIG. 6 shows the inlet from the pressure water supply channeled separately through the gas hydraulic accumulator and fed to the extended outlet element of the flow tank.
(8) FIG. 7 shows a sectioned side view of an automatic hydraulic valve module in an arrangement with a bolted flange connection.
(9) FIG. 8 shows a sectioned side view of an automatic hydraulic valve module in an arrangement with a threaded joint.
(10) FIG. 9 shows a sectioned side view of an automatic hydraulic valve module in an arrangement as a compact casting.
(11) FIG. 10 shows a graphical representation of the flushing water flow rate over time with a strong shock wave.
(12) FIG. 11 shows an ejector with individual components of the flushing system.
(13) FIG. 12 shows the arrangement of a toilet bowl pressure flushing system with an incorporated ejector fitted to the outside of the flow tank.
(14) FIG. 13 shows the arrangement of a toilet bowl pressure flushing system with an incorporated ejector fitted inside of the flow tank.
(15) FIG. 14 shows the specific arrangement of a toilet bowl pressure flushing system with an incorporated ejector fitted inside of the flow tank.
(16) FIG. 15 shows a graphical representation of the flushing water flow rate over time with a strong shock wave and with additional flow rate in the shock wave decay phase improving the shack wave duration.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
(17) It is understood that the individual embodiments of the present invention are shown by way of illustration only and not as limitations. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the present invention. Such equivalents are intended to be encompassed by the following claims. Those skilled in the art would have no problem optimally designing such device, which is why these features were not dealt with in detail.
Example 1
(18) This example of a particular embodiment of the invention describes a toilet bowl pressure flushing system with water shock wave flushing in its first embodiment as shown in FIGS. 1 and 2. It is designed as a compact rigid universal unit formed by original permanent joining of two basic components together. The first component is a pressure module 1 built as a rigid body with an inner vertical partition 1.1 having one connection opening 1.3, which partition divides the volume of the rigid body of the pressure module 1 to at least one gas hydraulic accumulator 1.2 and one flow tank 1.4. An overflow pipe 2 is channeled through the gas hydraulic accumulator 1.2. An inlet 5 from the pressure water supply is directed into the flow tank 1.4 and fitted to a side of the pressure module 1. Alternatively, the inlet 5 from the pressure water supply in the flow tank 1.4 is directed perpendicular to the outlet 1.4.1 of the flow tank 1.4. In another alternative, the inlet 5 from the pressure water supply is fitted from the top of the pressure module 1 as shown in FIG. 5. In another alternative, the inlet 5 from the pressure water supply is channeled separately through the gas hydraulic accumulator 1.2 and is fed into an extended outlet element 1.4.1 of the flow tank 1.4 as shown in FIG. 6. In another not shown alternative, the inlet 5 from the pressure water supply is channeled to the gas hydraulic accumulator 1.2. In another not shown alternative, the inlet 5 from the pressure water supply is channeled to the inlet part of the module 4 of the automatic hydraulic valve. The second component is the automatic hydraulic valve module 4 shown in FIG. 7 comprising a core 4.1 and inlet and outlet hollow elements 4.2 and 4.3 joined together by a bolted flange joint. The inlet element 4.2 of the automatic hydraulic valve is connected to the outlet 1.4.1 of the flow tank 1.4. The outlet element 4.3 of the automatic hydraulic valve feeds into the overflow pipe 2. The actual automatic hydraulic valve module 4 is further designed such that tangentially to the joint of the inlet element 4.2 and the outlet element 4.3, the axes of which are bent into a quadrant, is the core 4.1 with a tubular valve 4.4. One end of the tubular valve 4.4 fits against a saddle 4.5 and the other end slides inside the inlet element 4.2. At the same time one part of the piston 4.6 passes through the tubular valve 4.4 to the first spring 4.7. The other part of the piston 4.6 extends through the outlet element 4.3 out of the automatic hydraulic valve module 4. The other end of the tubular valve 4.4 sliding in the inlet element 4.2 is fitted with a cup 4.8. The other part of the piston 4.6 is controlled by a manual push control mechanism, possibly with breaking. Alternatively, the inlet and outlet hollow elements 4.2 and 4.3 of the automatic hydraulic valve are joined together by a threaded joint as shown in FIG. 8. In another alternative, the inlet and outlet hollow elements 4.2 and 4.3 of the automatic hydraulic valve are a compact casting as shown in FIG. 9, where the axes of the inlet and outlet elements 4.2 and 4.3 are bent into a right angle and the core 4.1 with tubular valve 4.4 is located in their joint. Alternatively, the automatic hydraulic valve module can be built into a wall. Incorporated between the outlet element 4.3 of the automatic hydraulic valve and the overflow pipe 2 is a flow breaker 3 with permanent aeration by atmospheric air, which flow breaker comprises a nozzle 3.1, an outer sleeve 3.2 with an aeration opening, as shown in FIGS. 1 and 5. The lower part of the nozzle 3.1 is fitted at the minimum safety height of 0.15 m or alternatively 0.40 m above the flood line.
Example 2
(19) This example of a particular embodiment of the invention describes a toilet bowl pressure flushing system with water shock wave flushing in its second embodiment as shown in FIG. 3. It has been sufficiently described in Example 1. The difference resides in the fact that the rigid body of the pressure module 1 contains two gas hydraulic accumulators 1.2 located on top of one another and one laterally positioned flow tank 1.4 interconnected with each gas hydraulic accumulator 1.2 by a connection opening 1.3.
Example 3
(20) This example of a particular embodiment of the invention describes a toilet bowl pressure flushing system with water shock wave flushing in its third embodiment as shown in FIG. 4. It is designed as a compact rigid unit formed by original permanent joining of two basic components together. The first component is the pressure module 1 built as a rigid body comprising two gas hydraulic accumulators 1.2 located on top of one another and one laterally positioned flow tank 1.4. They are interconnected by two connection openings 1.3 located above one another. The overflow pipe 2 is channeled outside the gas hydraulic accumulator 1.2. The inlet 5 from the pressure water supply in the flow tank 1.4 is directed to the flow tank 1.4. The other component is the automatic hydraulic valve module 4 which has been sufficiently described in Example 1. The difference being that it is directly connected to the overflow pipe without any flow breaker 3 with permanent aeration by atmospheric air.
Example 4
(21) This example of a particular embodiment of the invention describes the design of the outlet of a toilet bowl pressure flushing system with shock wave flushing as shown in FIGS. 11 and 12. The toilet bowl pressure flushing system with shock wave flushing is a compact unit comprising a pressure module 1 containing originally joined gas hydraulic accumulator 1.2 and a permanently flooded flow tank 1.4. The compact unit is complemented with an automatic hydraulic valve module 4, possibly with an incorporated flow breaker with permanent aeration by atmospheric air. The outlet of the pressure flushing system is designed in such a way that an ejector 6 is mounted to the outside of the flow tank 1.4. Connected to the propulsion nozzle 7 of the ejector 6 is the inlet 5 from the pressure water supply. Furthermore, the suction inlet 8 of the ejector 6 is connected to the outlet 1.4.1 of the flow tank 1.4.1, and the discharge outlet 9 of the ejector 6 feeds into the inlet 10 of the automatic hydraulic valve 4.
Example 5
(22) This example of a particular embodiment of the invention describes the design of the outlet of a toilet bowl pressure flushing system with shock wave flushing as shown in FIGS. 11, 13 and 14. Toilet bowl pressure flushing system with shock wave flushing has been sufficiently described in Example 4. The outlet of the pressure flushing system is designed in such a way that an ejector 6 is mounted inside the flow tank 1.4. Connected to the propulsion nozzle 7 of the ejector 6 is the inlet 5 from the pressure water supply. Furthermore, the suction inlet 8 of the ejector 6 is housed inside the flow tank 1.4 and the discharge outlet 9 of the ejector 6 is fed through the outlet 1.4.1 of the flow tank 1.4 to the inlet 10 of the automatic hydraulic valve 4.
(23) Functionality and the achieved effect of the toilet bowl pressure flushing system with water shock wave flushing according to the present invention is presented in FIG. 10 showing a graph of flushing water flow rate over time with a significant shock wave peak. The curve with plotted squares shows clearly that due to combining the gas hydraulic accumulator 1.2 with the flow tank 1.4 the flow rate in the first second is approximately 3 litres, which represents a water shock wave with a steep leading edge of the wave rising in 0.2 seconds. Also clear is a gradual flow of 1 litre of water over four seconds representing the trailing edge of the shock wave. Decaying of the shock wave is formed only by water flowing from the inlet 5 from the pressure water supply, which then fills in the gas hydraulic accumulator 1.2. A higher efficiency is assumed if the inlet 5 from the pressure water supply in the flow tank 1.4 is directed perpendicular to the outlet 1.4.1 of the flow tank 1.4, which assumption is shown by the curve with plotted dots, where the steep 0.2 second leading edge of the wave is followed by an extended period of max water flow rate with slower decay making the shock wave more robust.
(24) Similarly, a higher efficiency is assumed according to FIG. 15, if an ejector 6 is incorporated into the flushing system causing a shock wave to be moderately extended at about 0.5 of the maximum water flow rate, making the shock wave more robust. The curve plotted with squares represents the water flow rate with no ejector. The curve plotted with dots represents the water flow rate with an incorporated ejector 6. The maximum value of water flow rate can be sized based on requirements of manufacturers and users by sizing the volume of the gas hydraulic accumulator 1.2.
(25) Achieved efficiency of the pressure flushing system can be significantly improved if the volume of the gas hydraulic accumulator 1.2 is divided by one or more horizontal partitions 1.5 to separate volumes stacked on top of one another and each connected with the flow tank 1.4 by a separate connection opening 1.3, because by this arrangement the water surface area in individual volumes of the gas hydraulic accumulator 1.2 gets increased multiple times and so does the water displacement force making the shock wave more robust.
INDUSTRIAL APPLICABILITY
(26) The toilet bowl pressure flushing system with water shock wave flushing according the present invention finds its use in applications of sanitary equipment and appliances.
