Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A proportional pressure valve, electrical technology, applied in the field of proportional pressure valve, can solve the problems of slow response, short service life, complex structure, etc.
Pending Publication Date: 2021-05-14
环路科技(常州)有限公司
View PDF0 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0007] The technical problem to be solved by the present invention is: in order to solve the problems of complex structure, short service life, low control precision and slow response speed caused by two sets of high-frequency electromagnetic valves for pressure regulation in the electric proportional pressure valve in the prior art, now Provides an electric proportional pressure valve
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0058] Such as Figure 1-4 Shown, an electric proportional pressure valve, including:
[0059] The valve body 1 has a valve chamber 1d, a P1 port 1a, a P2 port 1b, and a P3 port 1c;
[0060] The valve seat 2 has a valve hole 201, and the valve seat 2 is fixed at the bottom end of the valve cavity 1d;
[0061] The valve core 3 has a central hole 301 through it, and the bottom end of the valve core 3 is inserted in the valve hole 201 and is slidably connected with the valve hole 201;
[0062] The proportional electromagnet 4 is set on the top of the valve cavity 1d and fixed on the valve body 1;
[0063] The fixed cover 5 is fixed in the valve chamber 1d, and is sleeved on the outside of the valve seat 2. The top of the fixed cover 5 has a top edge 501, and the fixed cover 5, the valve seat 2 and the valve core 3 are formed between the fixed cover 5 and the valve core 3. The first cavity 6 communicated with P1 port 1a, the position between the proportional electromagnet 4 and...
Embodiment 2
[0070] The sealing unit includes a gasket 12, the gasket 12 is fixed on the top end surface of the valve core 3, and the top opening of the central hole 301 is located in the gasket 12;
[0071] Such as figure 2 As shown, in the first working state, the top edge 501 of the fixed cover 5 is against the gasket 12, that is, the valve core 3 is firmly pressed against the top edge of the fixed cover 5 by the gasket 12 under the action of the elastic element 9 501 to ensure that the first cavity 6 and the second cavity 7 are kept isolated from each other; the push rod 401 is separated from the gasket 12 to ensure that the first gap 10 formed between the push rod 401 of the proportional electromagnet 4 and the valve core 3 can Make the upper opening of the central hole 301 communicate with the second chamber 7;
[0072] Such as image 3 As shown, during the second working state, the top edge 501 of the fixed cover 5 is against the sealing gasket 12, that is, the valve core 3 makes...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to the technical field of proportional pressure valves, in particular to an electric proportional pressure valve. The electric proportional pressure valve comprises a valve body, a valve seat, a valve element, a proportional electromagnet, a fixed cover and an elastic element, wherein the electric proportional pressure valve has a first working state, a second working state and a third working state. The design that the fixed cover is matched with the valve element is ingeniously utilized, so that the single proportional electromagnet can enable the electric proportional pressure valve to be freely switched among the three working states. The electric proportional pressure valve has the advantages that the structure is simple and reliable, the failure rate is low, the cost is low, the service life can be prolonged, and the harsh application environment of a vehicle can be adapted; and the proportional electromagnet directly drives the valve element to act, so that the control precision is high and the response is fast; and the closed-loop control over pressure can be achieved by means of air pressure logic, so that the power consumption of the proportional electromagnet can be effectively reduced, meanwhile the development difficulty of a control system is reduced, program control is simple and easy to implement, and the market prospect is good.
Description
technical field [0001] The invention relates to the technical field of proportional pressure valves, in particular to an electric proportional pressure valve. Background technique [0002] Electric proportional pressure valve, as a highly integrated mechatronic product, is the core of electric proportional control technology and represents the development direction of fluid control technology. It is widely used in factory automation and vehicle control. The existing electric proportional pressure valve is usually controlled by two sets of two-position two-way high-frequency solenoid valves, which have the following problems: [0003] First, the two sets of high-frequency solenoid valves need non-stop action to adjust the pressure. If one of them fails, the valve will fail and the service life will be shortened; [0004] Second, there is a pilot air chamber, due to the compressibility of the gas, its control accuracy is low and the response speed is slow; [0005] Third, po...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more