序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 螺杆机 CN200910052584.6 2009-06-05 CN101907094A 2010-12-08 孙志行
发明揭示了一种螺杆式压缩机及其电控系统及方法,该系统包括:电源模、高低压变压器、压缩机接线控制电路。高低压变压器与所述电源模块连接,用以提供至少两组不同电压:低压、高压;压缩机接线控制电路与所述高低压变压器连接,用以控制压缩机接线端子的各端子的通断、及连接方式;所述压缩机接线控制电路通过一连接单元控制所述接线端子的通断、及连接方式;当接入压缩机的电压为第一电压时,连接单元控制接线端子形成的接线电路呈第一状态;当接入压缩机的电压为第二电压时,连接单元控制接线端子形成的接线电路呈第二状态。本发明揭示的压缩机的电控系统,只需改变接线盘端子上短接片即可方便地实现高低压之间的互换,电机的接线方式不需改变。
2 Progressive cavity pump including a bearing between the rotor and stator US14124850 2013-04-20 US09404493B2 2016-08-02 Abdus Samad; Ramasamy Karthikeshwaran
Techniques are generally described for a progressive cavity pump and methods for making and using a progressive cavity pump. In an example, a progressive cavity pump may include a stator, a rotor and/or a bearing. The stator may include a helical shaped interior with a first pitch. The rotor may be inside the stator. The rotor may include a helical shaped exterior with a second pitch. The second pitch may be different from the first pitch. The rotor may be effective to rotate with respect to the stator and effective to move eccentrically within the stator to define at least one cavity inside the stator. At least one bearing may be between the rotor and the stator. The bearing may be sized and shaped so that the rotor is effective to rotate inside the bearing and the bearing is effective to move eccentrically along with the rotor.
3 PROGRESSIVE CAVITY PUMP US14124850 2013-04-20 US20140369875A1 2014-12-18 Abdus Samad; Ramasamy Karthikeshwaran
Techniques are generally described for a progressive cavity pump and a methods for making and using a progressive cavity pump. In an example, a progressive cavity pump may include a stator, a rotor and/or a bearing. The stator may include a helical shaped interior with a first pitch. The rotor may be inside the stator. The rotor may include a helical shaped exterior with a second pitch. The second pitch may be different from the first pitch. The rotor may be effective to rotate with respect to the stator and effective to move eccentrically within the stator to define at least one cavity inside the stator. At least one bearing may be between the rotor and the stator. The bearing may be sized and shaped so that the rotor is effective to rotate inside the bearing and the bearing is effective to move eccentrically along with the rotor.
4 SCREW COMPRESSOR US12788635 2010-05-27 US20100310402A1 2010-12-09 CHIH-HSING SUN
The invention revealed a screw compressor and its electrical control system and related control methods. The system comprises a power module, a high-low (tension) transformer and a compressor wiring control circuit. The high-low (tension) transformer connects the power module to provide at least two different voltages: low voltage and high voltage; the compressor wiring control circuit connects said high-low (tension) transformer to control the switching and connection mode of said wiring terminals of the compressor; When the first voltage is connected to the screw compressor, the connecting circuit formed by the wiring terminals which are controlled by a connecting unit will be in the first status. When the second voltage is connected to the screw compressor, the connecting circuit formed by the wiring terminals which are controlled by a connecting unit will be in the second status. The electrical control system of the compressor revealed by the invention can easily realize the switching of low and high voltage by changing the jumpers on the wiring terminals of the patch board with no need to change the connection mode of the motor.
5 Method and apparatus for accurately dispensing liquids and solids US752768 1996-11-20 US5857589A 1999-01-12 David J. Cline; Steven Smith; Timothy S. Clark
A system for metering and dispensing single and plural component liquids and solids as described herein. The dispensing system has a microprocessor-based control system and volumetrically efficient non-reciprocating pumps which provide a very accurate control of component ratios, shot sizes, flow rates and dispense durations. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections, each of which has a double helix bore. A rotor is inserted into the double helix bore with an interference fit. The dispense head has no dynamic fluid sealing surfaces and instead uses bellows as a sealing mechanism. The dispensing system includes a simple, easy to use calibration procedure and a weight scale. The system also has numerous feedback components for accurately controlling the pressure, flow rates, fluid levels and amounts of fluids dispensed.
6 Method and apparatus for accurately dispensing liquids and solids US09948733 2001-09-07 US20020014496A1 2002-02-07 David J. Cline; Steven Smith; Timothy S. Clark
A system for metering and dispensing single and plural component liquids and solids as described herein. The dispensing system has a microprocessor-based control system and volumetrically efficient non-reciprocating pumps which provide a very accurate control of component ratios, shot sizes, flow rates and dispense durations. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections, each of which has a double helix bore. A rotor is inserted into the double helix bore with an interference fit. The dispense head has no dynamic fluid sealing surfaces and instead uses bellows as a sealing mechanism. The dispensing system includes a simple, easy to use calibration procedure and a weight scale. The system also has numerous feedback components for accurately controlling the pressure, flow rates, fluid levels and amounts of fluids dispensed.
7 Method and apparatus for accurately dispensing liquids and solids US09677932 2000-10-03 US06286566B1 2001-09-11 David J. Cline; Steven Smith; Timothy S. Clark
A system for metering and dispensing single and plural component liquids and solids as described herein. The dispensing system has a microprocessor-based control system and volumetrically efficient non-reciprocating pumps which provide a very accurate control of component ratios, shot sizes, flow rates and dispense durations. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections, each of which has a double helix bore. A rotor is inserted into the double helix bore with an interference fit. The dispense head has no dynamic fluid sealing surfaces and instead uses bellows as a sealing mechanism. The dispensing system includes a simple, easy to use calibration procedure and a weight scale. The system also has numerous feedback components for accurately controlling the pressure, flow rates, fluid levels and amounts of fluids dispensed
8 Method and apparatus for accurately dispensing liquids and solids US229538 1999-01-12 US6126039A 2000-10-03 David J. Cline; Steven Smith; Timothy S. Clark
A system for metering and dispensing single and plural component liquids and solids as described herein. The dispensing system has a microprocessor-based control system and volumetrically efficient non-reciprocating pumps which provide a very accurate control of component ratios, shot sizes, flow rates and dispense durations. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections, each of which has a double helix bore. A dispense head for a plural pump dispensing system using sealed bellows with rods extending therethrough associated with an actuator. The sealed bellows attach at one end to the body of the dispense head and at the other to the rods. The rods extend into a chamber and have a sealing end selectively engaging the exits from the chamber. The dispense head may further incorporate an actuator controlling the rods, a controller controlling the pumps and the actuator to close down the system simultaneously and the pumps themselves. A static mixer may be used with the exits. The system also has numerous feedback components for accurately controlling the pressure, flow rates, fluid levels and amounts of fluids dispensed.
9 METHOD AND APPARATUS FOR ACCURATELY DISPENSING LIQUIDS AND SOLIDS EP97947593 1997-11-12 EP0990198A4 2001-07-18 CLINE DAVID J; SMITH STEVEN; CLARK TIMOTHY S
A system for metering and dispensing single and plural component liquids and solids. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections (140), each of which has a double helix bore (139). A rotor (141) is inserted into the double helix bore with an interference fit.
10 METHOD AND APPARATUS FOR ACCURATELY DISPENSING LIQUIDS AND SOLIDS EP97947593.6 1997-11-12 EP0990198A2 2000-04-05 CLINE, David, J.; SMITH, Steven; CLARK, Timothy, S.
A system for metering and dispensing single and plural component liquids and solids. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections (140), each of which has a double helix bore (139). A rotor (141) is inserted into the double helix bore with an interference fit.
11 METHOD AND APPARATUS FOR ACCURATELY DISPENSING LIQUIDS AND SOLIDS PCT/US9721204 1997-11-12 WO9824722A3 1998-12-10 CLINE DAVID J; SMITH STEVEN; CLARK TIMOTHY S
A system for metering and dispensing single and plural component liquids and solids. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections (140), each of which has a double helix bore (139). A rotor (141) is inserted into the double helix bore with an interference fit.
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