diverter priority valve

A technology of priority valve and priority control valve, used in fluid pressure actuating devices, servo motor components, mechanical equipment, etc., can solve the problems of high cost and no energy saving, and achieve the effects of energy saving, noise reduction and cost reduction

Active Publication Date: 2017-06-16
GUANGXI LIUGONG MASCH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a priority flow diverter valve with a priority flow diversion function to meet the priority of the brake pump in order to solve the problem of high cost and no energy saving when the brake pump and the heat dissipation pump are equipped in the existing loader at the same time. The oil supply of the system, and at the same time meet the oil supply of the hydraulic motor in the heat dissipation system

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
  • diverter priority valve
  • diverter priority valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the diversion priority valve in this embodiment has an oil inlet P port, an oil return T port, an output A1 port, and an output A2 port for connecting with an external oil circuit, and the oil inlet P port is used for connecting with a pressure oil source connections, such as hydraulic pumps. The oil return T port is used to connect with the oil tank circuit. The output A1 port and the output A2 port are respectively used to connect with two hydraulic actuators, and the oil supply priority of the hydraulic actuator connected to the output A1 port is higher than that of the hydraulic actuator connected to the output A2 port, for example In the loader system, the output A1 port can be used to connect with the hydraulic brake system, and the output A2 port can be used to connect with the hydraulic motor cooling system. The priority diverter valve guarantees the oil supply of the hydraulic brake system first, and the excess flow is supplied to t...

Embodiment 2

[0036] Compared with the technical solution in Embodiment 1, this embodiment differs in that a pressure reducing valve 8 is connected between the output A1 port and the priority oil outlet pa1 port of the priority valve, through which the pressure reducing valve 8 can output A3 Port and output A4 are connected with the foot brake valve and the accumulator, and the accumulator is charged to store hydraulic energy for the service brake system; the output A1 port is connected with the parking brake valve and supplied to the cylinder of the parking brake system. Oil. The working principle of the priority diverter valve in this embodiment is the same as that of the priority diverter valve in Embodiment 1, and can be used in the hydraulic braking system and hydraulic cooling system of the loader, wherein the output port A2 is connected to the hydraulic motor control valve, The cooling fan hydraulic motor supplies oil, and the output A3 port and output A4 port are connected with the ...

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

No PUM Login to view more

Abstract

The invention relates to hydraulic components. In order to solve the problem of high cost and low energy saving caused by the simultaneous configuration of a brake pump and a heat dissipation pump in an existing loader, it provides a diversion priority valve, which includes a sequence valve, a throttle valve, a priority valve, a priority The control valve, the throttle valve and the sequence valve are connected in parallel and then connected to the oil inlet P port; the sequence valve oil outlet is connected to the output A2 port, and the control ports at both ends are connected to the two ends of the throttle valve; the priority oil outlet of the priority valve is connected to the The output A1 port is connected, the second oil outlet pa2 port is connected with the output A2 port, the a3 control port of the priority valve is connected with the oil inlet p3 port, the spring chamber b3 control port is connected with the pb5 port of the priority control valve; the pa5 port of the priority control valve The oil port and the a5 liquid control terminal are connected to the output A1 port, and the pa6 oil port is connected to the oil return T port. The diverter valve of the invention can be used in the heat dissipation and hydraulic braking system of the loader, and a hydraulic pump can be used to supply oil, thereby saving manufacturing cost, saving energy consumption and reducing noise.

Description

technical field [0001] The present invention relates to a hydraulic control element, more specifically, to a diversion priority valve. Background technique [0002] With the mature development of loaders and the improvement of emission noise standards, the technology currently adopted by the loader industry is to configure a heat dissipation pump, drive a hydraulic motor fan through a hydraulic pump to dissipate heat, and use a hydraulic motor fan system to dissipate heat, reducing the noise of the fan. The hydraulic motor fan system is used for heat dissipation. The existing whole machine is equipped with an independent heat dissipation pump to supply oil to the hydraulic motor driving the fan. [0003] In addition, for safety considerations, some high-configuration loaders and stage III and IV stage loaders adopt full hydraulic braking, equipped with a brake pump, and charge the brake accumulator with fluid and store energy through the fluid charging valve. [0004] For t...

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
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
Inventor 边心文吴玉姣
Owner GUANGXI LIUGONG MASCH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap