Pulse-coupled pump

Abstract

A pulse-coupled pump includes a pump body, a low-pressure pump, a high-pressure pump, and a solenoid. The low-pressure pump comprises an armature, an armature sleeve and a rectifying valve. The high-pressure pump comprises a plunger, a sleeve, an inlet valve and a delivery valve. The high-pressure pump is coupled with the low-pressure pump through the armature. The armature, located in the armature sleeve, performs a reciprocating motion driven by magnetic field force of the solenoid, which drives the plunger pump and a forms two-way pulsating liquid. The two-way pulsating liquid can form a directional flow through a rectifying valve. The armature and the armature sleeve are made of magnetically permeable material. The armature sleeve has a non-magnetic gap. The front end of the armature is located near the magnetic gap. The inlet valve is located upstream of the directional liquid flow.

What is claimed is: 
     
         1 . A pulse-coupled pump, comprising a pump body, in which a low-pressure pump, a high-pressure pump, and a solenoid is disposed,
 wherein the low-pressure pump comprises an armature, an armature sleeve and a rectifying valve,   wherein the high-pressure pump comprises a plunger, a sleeve, an inlet valve and a delivery valve, wherein the high-pressure pump is coupled with the low-pressure pump through the armature,   wherein the armature, which is located in the armature sleeve, performs a reciprocating motion driven by the magnetic field force of the solenoid, which drives the working of a plunger pump to produce a two-way pulsating liquid,   wherein the two-way pulsating liquid can form a directional flow through a rectifying valve, and   wherein the inlet valve is located upstream of the directional liquid flow.   
     
     
         2 . The pulse-coupled pump according to  claim 1 , wherein the rectifying valve is a one-way valve. 
     
     
         3 . The pulse-coupled pump according to  claim 2 , wherein the rectifying valve is a diaphragm valve. 
     
     
         4 . The pulse-coupled pump according to  claim 3 , wherein the sleeve is moved in synchronism with the armature, and the plunger is fixed relative to the pump body. 
     
     
         5 . The pulse-coupled pump according to  claim 3 , wherein the plunger is moved in synchronism with the armature, and the sleeve is fixed relative to the pump body. 
     
     
         6 . The pulse-coupled pump according to  claim 4 , wherein it comprises a rear limiter and a front limiter fixed relative to the pump body, and the armature moves in a fixed way between the front limiter and the rear limiter, to obtain fixed liquid output of single pulse. 
     
     
         7 . The pulse-coupled pump according to  claim 5 , wherein it comprises a rear limiter and a front limiter fixed relative to the pump body, and the armature moves in a fixed way between the front limiter and the rear limiter, to obtain fixed liquid output of single pulse. 
     
     
         8 . The pulse-coupled pump according to  claim 4 , wherein it comprises an external circulating passage located outside the pump body, the external circulating passage is connected in parallel with the low-pressure pump in the pump body to form a space for liquid circulation flow. 
     
     
         9 . The pulse-coupled pump according to  claim 5 , wherein it comprises an external circulating passage located outside the pump body, the external circulating passage is connected in parallel with the low-pressure pump in the pump body to form a space for liquid circulation flow. 
     
     
         10 . The pulse-coupled pump according to  claim 6 , wherein it comprises an external circulating passage located outside the pump body, the external circulating passage is connected in parallel with the low-pressure pump in the pump body to form a space for liquid circulation flow. 
     
     
         11 . The pulse-coupled pump according to  claim 7 , wherein it comprises an external circulating passage located outside the pump body, the external circulating passage is connected in parallel with the low-pressure pump in the pump body to form a space for liquid circulation flow. 
     
     
         12 . The pulse-coupled pump according to  claim 8 , wherein it comprises a gas-liquid separation chamber, and the gas-liquid separation chamber is connected in series to the external circulating passage. 
     
     
         13 . The pulse-coupled pump according to  claim 9 , wherein it comprises a gas-liquid separation chamber, and the gas-liquid separation chamber is connected in series to the external circulating passage. 
     
     
         14 . The pulse-coupled pump according to  claim 10 , wherein it comprises a gas-liquid separation chamber, and the gas-liquid separation chamber is connected in series to the external circulating passage. 
     
     
         15 . The pulse-coupled pump according to  claim 11 , wherein it comprises a gas-liquid separation chamber, and the gas-liquid separation chamber is connected in series to the external circulating passage. 
     
     
         16 . The pulse-coupled pump according to  claim 12 , wherein it comprises a liquid feed filter, and the gas-liquid separation chamber is communicated with the clean space of the filter. 
     
     
         17 . The pulse-coupled pump according to  claim 13 , wherein it comprises a liquid feed filter, and the gas-liquid separation chamber is communicated with the clean space of the filter. 
     
     
         18 . The pulse-coupled pump according to  claim 14 , wherein it comprises a liquid feed filter, and the gas-liquid separation chamber is communicated with the clean space of the filter. 
     
     
         19 . The pulse-coupled pump according to  claim 15 , wherein it comprises a liquid feed filter, and the gas-liquid separation chamber is communicated with the clean space of the filter.