Intelligent hydraulic bidirectional pressure regulating device

文档序号:1962298 发布日期:2021-12-14 浏览:23次 中文

阅读说明:本技术 一种智能液压双向调压装置 (Intelligent hydraulic bidirectional pressure regulating device ) 是由 谢传流 展洪岭 宣炜鹏 袁振阳 王星朗 蔡万龙 程忞逸 于 2021-08-31 设计创作,主要内容包括:本发明公开了一种智能液压双向调压装置,其包括,储水系统,包括罐体底座和储水桶,储水桶底部设置有进水口,顶部设置有出水口;活塞系统,包括过水体、活塞杆、双向板和活塞筒,所述过水体位于储水桶内且与储水桶内壁密封配合,过水体下部开设有若干过水孔,所述活塞杆在活塞筒内部,所述活塞筒设置于储水桶顶部,活塞杆穿过过水体与双向板相连接;控制系统,包括活塞系统控制模块、压力脉动环形测压装置和压力脉动传感器,所述压力脉动环形测压装置设置于储水桶底部外侧,压力脉动传感器设置于压力脉动环形测压装置上。本发明可以做到管道压力变化数据可视化,压力异常报警,通过管道内部压力变化可以做到精准智能调压,更加安全智能化。(The invention discloses an intelligent hydraulic bidirectional pressure regulating device, which comprises a water storage system, a water storage tank and a water outlet, wherein the water storage system comprises a tank body base and a water storage barrel; the piston system comprises a water passing body, a piston rod, a two-way plate and a piston cylinder, wherein the water passing body is positioned in the water storage barrel and is in sealing fit with the inner wall of the water storage barrel, a plurality of water passing holes are formed in the lower part of the water passing body, the piston rod is arranged in the piston cylinder, the piston cylinder is arranged at the top of the water storage barrel, and the piston rod penetrates through the water passing body and is connected with the two-way plate; the control system comprises a piston system control module, a pressure pulsation annular pressure measuring device and a pressure pulsation sensor, wherein the pressure pulsation annular pressure measuring device is arranged on the outer side of the bottom of the water storage barrel, and the pressure pulsation sensor is arranged on the pressure pulsation annular pressure measuring device. The pipeline pressure change data visualization and pressure abnormity alarm device can realize pipeline pressure change data visualization and pressure abnormity alarm, can realize accurate intelligent pressure regulation through the pressure change in the pipeline, and is safer and more intelligent.)

1. The utility model provides a two-way pressure regulating device of intelligence hydraulic pressure which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the water storage system (100) comprises a tank body base (101) and a water storage barrel (102), wherein the water storage barrel (102) is arranged at the top of the tank body base (101), a water inlet (103) is formed in the bottom of the water storage barrel (102), and a water outlet (104) is formed in the top of the water storage barrel;

the piston system (200) comprises a water passing body (201), a piston rod (202), a two-way plate (203) and a piston cylinder (204), wherein the water passing body (201) is located in the water storage barrel (102) and is in sealing fit with the inner wall of the water storage barrel (102), a plurality of water passing holes (201a) are formed in the lower portion of the water passing body (201), the piston rod (202) is arranged inside the piston cylinder (204), the piston cylinder (204) is arranged at the top of the water storage barrel (102), and the piston rod (202) penetrates through the water passing body (201) to be connected with the two-way plate (203);

the control system (300) comprises a piston system control module (301), a pressure pulsation annular pressure measuring device (302) and a pressure pulsation sensor (303), wherein the pressure pulsation annular pressure measuring device (302) is arranged on the outer side of the bottom of the water storage barrel (102), and the pressure pulsation sensor (303) is arranged on the pressure pulsation annular pressure measuring device (302).

2. The intelligent hydraulic bidirectional pressure regulating device according to claim 1, wherein: the piston system (200) further comprises a limiting plate (205), wherein the limiting plate (205) is annular and is fixed above the water inlet (103).

3. The intelligent hydraulic bidirectional pressure regulating device according to claim 2, wherein: cross water (201) bottom and be provided with snap ring (201b), snap ring (201b) and limiting plate (205) butt, the diameter of two-way board (203) is less than the internal diameter of limiting plate (205) and is greater than the internal diameter of crossing water (201).

4. The intelligent hydraulic bidirectional pressure regulating device as claimed in claim 2 or 3, wherein: the pressure pulsation annular pressure measuring device (302) is arranged below the limiting plate (205), and a plurality of groups of round pipes (302a) are arranged on the inner side of the pressure pulsation annular pressure measuring device (302) and extend into the water storage barrel (102).

5. The intelligent hydraulic bidirectional pressure regulating device according to claim 4, wherein: the top of the water storage barrel (102) is provided with a piston oil pump (206), the upper end and the lower end of the piston cylinder (204) are both provided with hydraulic oil inlet and outlet, the top of the piston rod (202) is provided with a sealing clamping plug (202a), and the piston oil pump (206) is provided with two groups of oil inlet and outlet passages which are respectively communicated with the hydraulic oil inlet and outlet at the upper end and the lower end of the piston cylinder (204).

6. The intelligent hydraulic bidirectional pressure regulating device according to claim 5, wherein: piston system control module (301) includes switch board (301a), piston oil pump control module (301b) and wireless transmission module (301c), switch board (301a) set up in water storage system (100) one side, and piston oil pump control module (301b) sets up in switch board (301a), and wireless transmission module (301c) sets up in switch board (301a) top.

7. The intelligent hydraulic bidirectional pressure regulating device according to claim 6, wherein: the piston oil pump control module (301b) is connected with the piston oil pump (206) through an oil pump control circuit, and the piston oil pump control module (301b) is connected with the pressure pulsation sensor (303) through a signal transmission line.

8. The intelligent hydraulic bidirectional pressure regulating device according to claim 7, wherein: the control cabinet (301a) is provided with a control panel for displaying pressure change data in the pipeline in real time, and the wireless transmission module (301c) remotely transmits the acquired pressure change data to the mobile end and the computer end.

9. The intelligent hydraulic bidirectional pressure regulating device as claimed in any one of claims 5 to 8, wherein: the volume of the upper part of the water storage barrel (102) is larger than that of the lower part.

10. The intelligent hydraulic bidirectional pressure regulating device according to claim 9, wherein: an access hole (105) is formed in the top of the water storage barrel (102), and a protective cover is installed on the top of the access hole (105).

Technical Field

The invention relates to the technical field of pipeline pressure regulation, in particular to an intelligent hydraulic bidirectional pressure regulating device.

Background

Pipeline pressure regulating device universal application is in our daily production, and in prior art, pipeline pressure regulating hammer device that disappears can not intelligent control, and pressure regulating device internal pressure data is not accomplished visual, can not monitor the inside pressure of pipeline, and the pressure appears unusual fluctuation when the pipeline internal pressure and can not in time take corresponding measure, easily leads to the emergence of accident, causes the loss of property.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

In order to solve the technical problems, the invention provides the following technical scheme: an intelligent hydraulic bidirectional pressure regulating device comprises a water storage system, a water storage tank and a water outlet, wherein the water storage tank comprises a tank body base and a water storage barrel; the piston system comprises a water passing body, a piston rod, a two-way plate and a piston cylinder, wherein the water passing body is positioned in the water storage barrel and is in sealing fit with the inner wall of the water storage barrel, a plurality of water passing holes are formed in the lower part of the water passing body, the piston rod is arranged in the piston cylinder, the piston cylinder is arranged at the top of the water storage barrel, and the piston rod penetrates through the water passing body and is connected with the two-way plate; the control system comprises a piston system control module, a pressure pulsation annular pressure measuring device and a pressure pulsation sensor, wherein the pressure pulsation annular pressure measuring device is arranged on the outer side of the bottom of the water storage barrel, and the pressure pulsation sensor is arranged on the pressure pulsation annular pressure measuring device.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the piston system further comprises a limiting plate which is annular and is fixed above the water inlet.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the water passing body is provided with a clamping ring at the bottom, the clamping ring is abutted against a limiting plate, and the diameter of the bidirectional plate is smaller than the inner diameter of the limiting plate and larger than the inner diameter of the water passing body.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the pressure pulsation annular pressure measuring device is arranged below the limiting plate, and a plurality of groups of round pipes are arranged on the inner side of the pressure pulsation annular pressure measuring device and extend into the water storage barrel.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the water storage barrel is characterized in that a piston oil pump is arranged at the top of the water storage barrel, hydraulic oil inlet and outlet are formed in the upper end and the lower end of the piston barrel, a sealing clamping plug is arranged at the top of the piston rod, and the piston oil pump is provided with two groups of oil inlet and outlet passages which are communicated with the hydraulic oil inlet and outlet in the upper end and the lower end of the piston barrel respectively.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: piston system control module includes switch board, piston oil pump control module and wireless transmission module, the switch board sets up in water storage system one side, and piston oil pump control module sets up in the switch board, and wireless transmission module sets up in the switch board top.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: piston oil pump control module passes through oil pump control circuit and is connected with piston oil pump, piston oil pump control module pass through signal transmission line with pressure pulsation sensor connects.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the control cabinet is provided with a control panel which displays pressure change data in the pipeline in real time, and the wireless transmission module remotely transmits the collected pressure change data to the mobile end and the computer end.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the volume of the upper part of the water storage barrel is larger than that of the lower part of the water storage barrel.

As a preferable scheme of the intelligent hydraulic bidirectional pressure regulating device of the invention, wherein: the top of the water storage barrel is provided with an access hole, and the top of the access hole is provided with a protective cover.

The invention has the beneficial effects that: the invention provides an intelligent hydraulic bidirectional pressure regulating device, which solves the technical problems that the pressure regulating device in the prior art is not intelligent, pressure data are not visual, the pressure in a pipeline cannot be monitored, and corresponding measures cannot be taken timely when abnormal fluctuation occurs in the pressure in the pipeline.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a schematic view of the external structure of the present invention.

FIG. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic structural diagram of the piston system of the present invention.

Fig. 4 is a schematic structural diagram of the pressure pulsation annular pressure measuring device of the present invention.

FIG. 5 is a schematic diagram of a control system according to the present invention.

FIG. 6 is a graph of the mean value of the pressure fluctuations of the pressure pulsation sensor according to the present invention.

FIG. 7 is a view showing the structure of the present invention when the pressure is increased.

Fig. 8 is a view showing a structure of the present invention when the pressure is reduced.

Fig. 9 is a structural view of the present invention in a normal pressure state.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 and 2, a first embodiment of the present invention provides an intelligent hydraulic two-way pressure regulating device, which includes a water storage system 100, a piston system 200 and a control system 300; the water storage system 100 comprises a tank body base 101 and a water storage barrel 102, wherein the water storage barrel 102 is arranged at the top of the tank body base 101 and plays a supporting role for the water storage barrel 102, a water inlet 103 is formed in the bottom of the water storage barrel 102, the water inlet 103 is connected with a pipeline needing pressure regulation, and a water outlet 104 is formed in the top of the water storage barrel; the piston system 200 comprises a water passing body 201, a piston rod 202, a two-way plate 203 and a piston cylinder 204, wherein the water passing body 201 is positioned in the water storage barrel 102 and is in sealing fit with the inner wall of the water storage barrel 102, a plurality of water passing holes 201a are formed in the lower portion of the water passing body 201, the water passing holes 201a are used for water flow between a pressure regulating pipeline and the water storage barrel 102, the piston rod 202 is arranged in the piston cylinder 204, the piston cylinder 204 is arranged at the top of the water storage barrel 102, the piston rod 202 moves up and down in the piston cylinder 204, the piston rod 202 penetrates through the water passing body 201 and is connected with the two-way plate 203, the piston rod 202 drives the two-way plate 203 to move up and down in the water storage barrel 102, and the two-way plate 203 abuts against the bottom of the water passing body 201, so that the water passing body 201 is driven to move up and down in the water storage barrel 102; control system 300, including piston system control module 301, pressure pulsation annular pressure measurement device 302 and pressure pulsation sensor 303, piston system control module 301 is used for controlling piston system 200's upper and lower displacement, pressure pulsation annular pressure measurement device 302 sets up in the outside of water storage bucket 102 bottom, pressure pulsation annular pressure measurement device 302 and water storage bucket 102 intercommunication, make the pressure in the pressure pulsation annular pressure measurement device 302 the same with water storage bucket 102 internal pressure, realize accurate pressure measurement, pressure pulsation sensor 303 sets up on pressure pulsation annular pressure measurement device 302, a pressure value for surveing pressure pulsation annular pressure measurement device 302, the pressure value of water storage bucket 102 bottom promptly.

When the invention is used, the water inlet 103 at the lower part of the water storage barrel 102 is connected with the pressure regulating pipeline through a flange plate, and the water outlet 104 is connected with the water outlet pipeline through the flange plate; when the water pressure in the pressure regulating pipeline is suddenly increased, the pressure pulsation sensor 303 monitors pressure fluctuation signals and then obtains a pressure average value, the signals are transmitted to the piston system control module 301, the piston system control module 301 analyzes the received pressure signals, and the pressure exceeds a set threshold value, the piston rod 202 is controlled to pull the bidirectional plate 203 upwards to enable the water passing body 201 to move upwards, the process is a pressure releasing process, water in the lower pipeline enters the upper part of the water storage barrel 102 through the water hole 201a, when the water pressure of the lower pipeline of the limiting plate 202 is in a high-pressure state for a long time, the water in the pipeline continuously flows outwards through the water outlet 104 of the water storage barrel 102, the pressure in the pipeline is sufficiently released, and after a balanced state is reached, the piston oil pump 206 is controlled to push the piston rod 202 downwards to enable the water passing body 201 to reset; (ii) a When the water pressure in the pressure regulating pipeline is suddenly reduced, the pressure pulsation sensor 303 monitors the average value of pressure fluctuation and transmits a signal to the piston system control module 301, the piston system control module 301 analyzes the received pressure signal, and if the pressure is smaller than a set threshold value, the piston rod 202 is controlled to push downwards, the bidirectional plate 203 moves downwards, the bidirectional plate 203 is separated from the water passing body 201, so that water on the upper portion of the water storage barrel 102 flows into the lower pipeline through the water hole 201a and the bottom gap of the water passing body 201, water column interruption is prevented, and finally, a balance state is achieved, and the piston oil pump 206 is controlled to pull the piston rod 202 upwards to reset the bidirectional plate 203.

The pipeline pressure change data visualization and pressure abnormity alarm device can realize pipeline pressure change data visualization and pressure abnormity alarm, can realize accurate intelligent pressure regulation through the pressure change in the pipeline, and is safer and more intelligent.

Example 2

Referring to fig. 1 to 9, a second embodiment of the present invention is different from the first embodiment in that: the piston system 200 further comprises a retainer plate 205, wherein the retainer plate 205 is annular and is fixed above the water inlet 103. The bottom of the water body 201 is provided with a snap ring 201b, the snap ring 201b is abutted with a limiting plate 205, the limiting plate 205 is used for limiting the downward moving position of the water body 201 in the water storage barrel 102, the water body 201 is abutted on the limiting plate 205 through the snap ring 201b in a normal state, and the diameter of the bidirectional plate 203 is smaller than the inner diameter of the limiting plate 205 and larger than the inner diameter of the water body 201.

When the pressure in the pressure regulating pipeline is in a normal state, the water passing body 201 abuts against the limiting plate 205 through the snap ring 201b, and the bidirectional plate 203 abuts against the bottom of the water passing body 201 to seal the bottom of the water passing body 201; when the pressure in the pressure regulating pipeline exceeds a set threshold value, the piston rod 202 pulls the two-way plate 203 upwards, and as the diameter of the two-way plate 203 is smaller than the inner diameter of the limiting plate 205 and larger than the inner diameter of the water passing body 201, the two-way plate 203 can penetrate through the limiting plate 205 to abut against the bottom of the water passing body 201, so that the water passing body 201 is driven to move upwards in the water storage barrel 102, the water hammer of the pressure regulating pipeline is absorbed and eliminated, and the water in the pressure regulating pipeline enters the upper part of the water storage barrel 102 through the water passing holes 201 a; when the pressure in the pressure regulating pipeline is smaller than a set threshold value, the piston rod 202 pushes the bidirectional plate 203 downwards, the bidirectional plate 203 is separated from the bottom of the water storage barrel 102, so that water on the upper portion of the water storage barrel 102 flows into the pressure regulating pipeline through the water through hole 201a and the bottom of the water through body 201, and water column interruption is prevented.

Further, the pressure pulsation annular pressure measurement device 302 is arranged below the limiting plate 205, and a plurality of groups of circular tubes 302a are arranged on the inner side of the pressure pulsation annular pressure measurement device 302 and extend into the water storage barrel 102, so that the pressure in the pressure pulsation annular pressure measurement device 302 is the same as the pressure at the lower part of the water storage barrel 102, and the purpose of measuring the pressure accurately is achieved.

Further, a piston oil pump 206 is arranged at the top of the water storage barrel 102, the piston oil pump 206 is used for controlling the up-and-down displacement of the piston rod 202 in the piston cylinder 204, hydraulic oil inlets and outlets are arranged at the upper end and the lower end of the piston cylinder 204, a sealing clamping plug 202a is arranged at the top of the piston rod 202, and the piston oil pump 206 is provided with two sets of oil inlet and outlet passages which are respectively communicated with the hydraulic oil inlets and outlets at the upper end and the lower end of the piston cylinder 204.

When the pressure in the pressure regulating pipeline exceeds a set threshold value, the piston oil pump 206 pumps oil through an oil path communicated with a hydraulic oil inlet and outlet at the lower end of the piston cylinder 204, and the piston oil pump 206 pumps oil through an oil path communicated with a hydraulic oil inlet and outlet at the upper end of the piston cylinder 204, so that the sealing clamping plug 202a is extruded to move upwards, and the piston rod 202 is driven to move upwards in the piston cylinder 204; when the pressure in the pressure regulating pipeline is smaller than a set threshold value, the piston oil pump 206 pumps oil from an oil path communicated with a hydraulic oil inlet and outlet at the lower end of the piston cylinder 204, and the piston oil pump 206 delivers oil from an oil path communicated with a hydraulic oil inlet and outlet at the upper end of the piston cylinder 204, so that the sealing clamping plug 202a is extruded to move downwards, and the piston rod 202 is driven to move downwards in the piston cylinder 204.

Further, the piston system control module 301 includes a control cabinet 301a, a piston oil pump control module 301b and a wireless transmission module 301c, the control cabinet 301a is disposed on one side of the water storage system 100, the piston oil pump control module 301b is disposed in the control cabinet 301a, the wireless transmission module 301c is disposed at the top of the control cabinet 301a, and the piston oil pump control module 301b is configured to receive a pressure fluctuation signal monitored by the pressure fluctuation sensor 303 and control the piston oil pump 206 to move. The piston oil pump control module 301b is connected to the piston oil pump 206 via an oil pump control circuit, and the piston oil pump control module 301b is connected to the pressure pulsation sensor 303 via a signal transmission line.

The pressure pulsation sensor 303 takes a pressure average value of a monitored pressure fluctuation signal and transmits the pressure average value to the piston oil pump control module 301b through a signal transmission line, the piston oil pump control module 301b analyzes the received pressure signal, and if the pressure exceeds a set threshold value, the piston oil pump 206 is controlled to pull the piston rod 202 upwards to pull the bidirectional plate 203 to enable the water passing body 201 to move upwards; if the pressure is less than the set threshold, the piston oil pump 206 is controlled to push the piston rod 202 downwards to push the bidirectional plate 203 downwards.

Control panel is installed on switch board 301a, shows the pipeline internal pressure change data in real time, and wireless transmission module 301c is with the remote transmission of the pressure change data of gathering to removing end and computer end, can make the staff all can real time monitoring pipeline pressure change in any place, can in time take corresponding measure if the unusual fluctuation appears.

Furthermore, the volume of the upper part of the water storage barrel 102 is larger than that of the lower part, so that the water storage capacity is increased while the height is reduced, and a sufficient water source is reserved for the water flow. The top of the water storage barrel 102 is provided with an access hole 105, and the top of the access hole 105 is provided with a protective cover for preventing foreign matters from entering the water storage barrel.

When the invention is used, the water inlet 103 at the lower part of the water storage barrel 102 is connected with the pressure regulating pipeline through a flange plate, and the water outlet 104 is connected with the water outlet pipeline through the flange plate; when the water pressure in the pressure regulating pipeline is suddenly increased, the pressure pulsation sensor 303 monitors a pressure fluctuation signal and then obtains a pressure average value, the signal is transmitted to the piston oil pump control module 301b, the piston oil pump control module 301b analyzes the received pressure signal, and the pressure exceeds a set threshold value, the piston oil pump 206 is controlled to pull the piston rod 202 upwards to pull the bidirectional plate 203 to enable the water passing body 201 to move upwards, the process is a pressure releasing process, water in the lower pipeline enters the upper part of the water storage barrel 102 through the water hole 201a, when the water pressure of the lower pipeline of the limiting plate 205 is in a high-pressure state for a long time, the water in the pipeline continuously flows outwards through the water outlet 104 of the water storage barrel 102, the pressure in the pipeline is sufficiently released, and after the water pressure in the pipeline reaches a balanced state, the piston oil pump 206 is controlled to push the piston rod 202 downwards to enable the water passing body 201 to reset; when the water pressure in the pipeline below the limiting plate 205 is suddenly reduced, the pressure pulsation sensor 303 monitors the average value of the pressure fluctuation and transmits a signal to the piston oil pump control module 301b, the piston oil pump control module 301b analyzes the received pressure signal, and if the pressure is smaller than a set threshold value, the piston oil pump 206 is controlled to push the piston rod 202 downwards, the bidirectional plate 203 moves downwards, the bidirectional plate 203 is separated from the water passing body 201, so that the water on the upper portion of the water storage barrel 102 flows into the pipeline below through the water hole 201a and the bottom notch of the water passing body 201, thereby preventing the water column from being interrupted, and if the pressure reaches a balanced state, the piston oil pump 206 is controlled to pull the piston rod 202 upwards to reset the bidirectional plate 203.

The pipeline pressure change data visualization and pressure abnormity alarm device can realize pipeline pressure change data visualization and pressure abnormity alarm, can realize accurate intelligent pressure regulation through the pressure change in the pipeline, and is safer and more intelligent.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

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