Compact two-way cartridge valve using combined flange-controlled plate

• US 9,395,005 B2
• Filed: 08/11/2011
• Issued: 07/19/2016
• Est. Priority Date: 04/29/2010
• Status: Active Grant

• Current Assignee: Shanghai Renhao Hydraulic Technology Co., Ltd.
• Original Assignee: Shanghai Renhao Hydraulic Technology Co., Ltd.
• Inventors: Huang, Renhao
• Primary Examiner(s): Schneider, Craig
• Assistant Examiner(s): Le, Minh
• Application Number:
  US13/819,746
• Publication Number:
  US 20130153057A1
• Time in Patent Office: 1,804 Days
• Field of Search: 137/488, 137/485, 137/269, 137/271, 137/884, 137/886, 137/492, 137/489.5, 137/489, 137/494, 137/495, 137/454.5
• US Class Current: 1/1
• CPC Class Codes: F15B 13/0405 for seat valves, i.e. poppet valves
• CPC Class Codes: F15B 13/043 with electrically-controlled pilot valves
• CPC Class Codes: F15B 13/0835 Cartridge type valves
• CPC Class Codes: F16K 15/02 with guided rigid valve members
• CPC Class Codes: F16K 27/003 Housing formed from a plurality of the same valve elements
• CPC Class Codes: F16K 31/406 acting on a piston
• CPC Class Codes: F16K 31/42 by means of electrically-actuated members in the supply or discharge conduits of the fluid motor F16K31/40 takes precedence
• CPC Class Codes: Y10T 137/7758 Pilot or servo controlled

Abstract

A compact two-way cartridge valve with combined flanged cover includes combined flanged covers, miniaturized pilot control assemblies and main stage of seated poppet valve, or combined flanged covers and main stage of seated poppet valve, or combined covers and miniaturized pilot assemblies and main stage of seated poppet valve. The present invention can overall realign all the two-way cartridge valve products currently on the market, and innovate new series of MINISO compact two-way cartridge valves in the specifications of 10 mm, 16 mm, 25 mm, 32 mm, and will change the quo-status of hydraulic drive and control system, that is the two-way cartridge valves currently are mainly used for large power or flow situations, and can make two-way cartridge valves applied for medium and small power or flow situations, which are the majority of the market in the hydraulic drive and control system.

Claims

1. A compact two-way cartridge valve comprising:

a combined flanged cover,

a first pilot control valve,

a sandwich pilot pressure control valve,

a switch ¾

way pilot solenoid directional valve,

a poppet valve,

wherein the combined flanged cover includes a combined plug with an internal throttling plug, a pressure valve positioned in a first mounting hole of the combined flanged cover, and an external mounting surface for mounting a sandwich combination of a sandwich pilot pressure control valves and a switch ¾

way pilot solenoid directional valve, and

wherein the poppet valve has a pressure control function.

2. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover includes a second pilot control valve positioned in a second mounting hole, the second mounting hole having the same size as the first mounting hole, wherein one of the first and second pilot control valves is a miniaturized screw pilot pressure valve, and wherein the other of the first and second pilot control valves is a screw directional valve.

3. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a stroke adjustment device of the poppet valve, wherein the poppet valve has directional and throttling functions.

4. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a throttling plug and a miniaturized screw pilot pressure valve, wherein the poppet valve has pressure relief, stress reducing, back pressure or sequence functions.

5. The compact two-way cartridge valve as defined in claim 1 wherein the pilot valve extends along an axis substantially perpendicular to the external mounting surface.

6. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a first internal combined plug having a check valve or a throttling plug, and a second internal combined plug having a check valve or a shuttle valve, wherein the poppet valve has a directional or pressure compensation function.

7. The compact two-way cartridge valve as defined in claim 1 wherein the poppet valve has a directional control function.

8. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes one or two internal combined plugs with internal throttling plugs on which pilot solenoid directional valves can be the installed, wherein the poppet valve has a main stage with directional control function.

9. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a combined plug with an internal shuttle valve on which a switch-type pilot solenoid directional valve can be the installed, wherein the poppet valve has a main stage with directional control function.

10. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a stroke adjustment device for the poppet valve, wherein the poppet valve includes a displacement sensor device, and wherein the poppet valve has a main stage with directional and flow control functions.

11. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a displacement sensor for the poppet valve, and a screw miniaturized proportional control cartridge valve, wherein the poppet valve has a main stage with a proportional throttling function.

12. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a switch-type or a proportional directional screw cartridge valve, wherein the poppet valve has a switch-type main stage.

13. The compact two-way cartridge valve as defined in claim 1 wherein the combined flanged cover further includes a pilot pressure valve positioned in a combined plug mounting hole on which a proportional pressure valve is installed, wherein the poppet valve has a main stage with a pressure control function.