CONTROL METHOD FOR NON-PULSATING PUMP
PURPOSE:To grasp the fluctuation of delivery pressure value accurately in a two-throw type reciprocating non-pulsating pump by determining the sampling time of the delivery pressure value according to the accuracy of the digitalized delivery pressure value and the cycle of pressure pulsation. CONSTI...
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| creator | SUGA TSUNEO ISHII MIEKO TANAKA NAOYUKI |
| description | PURPOSE:To grasp the fluctuation of delivery pressure value accurately in a two-throw type reciprocating non-pulsating pump by determining the sampling time of the delivery pressure value according to the accuracy of the digitalized delivery pressure value and the cycle of pressure pulsation. CONSTITUTION:When a start signal is inputted through a pulse generator 36 from a start/stop button 35, a microcomputer 34 calculates pulse motor driving frequency and the like from a flow signal set by a setter 32 through a code converter 33, drives a two-throw type reciprocating pump 31 through a driver 37, detects combined delivery pressure at a sensor 38, performs its sampling through an A/D converter 39 and controls it to be kept constant. The microcomputer 34 further determines the sampling time of this delivery pressure value by a program in the microcomputer 34 according to the accuracy of the delivery pressure value digitalized at the A/D converter 39 and the cycle of pressure pulsation and controls the A/D converter 39 through a control line 40. The fluctuation of delivery pressure value can be thus seized accurately so as to aim at decrease in pressure pulsation. |
| format | Patent |
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CONSTITUTION:When a start signal is inputted through a pulse generator 36 from a start/stop button 35, a microcomputer 34 calculates pulse motor driving frequency and the like from a flow signal set by a setter 32 through a code converter 33, drives a two-throw type reciprocating pump 31 through a driver 37, detects combined delivery pressure at a sensor 38, performs its sampling through an A/D converter 39 and controls it to be kept constant. The microcomputer 34 further determines the sampling time of this delivery pressure value by a program in the microcomputer 34 according to the accuracy of the delivery pressure value digitalized at the A/D converter 39 and the cycle of pressure pulsation and controls the A/D converter 39 through a control line 40. The fluctuation of delivery pressure value can be thus seized accurately so as to aim at decrease in pressure pulsation.</description><language>eng</language><subject>BLASTING ; HEATING ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; LIGHTING ; MEASURING ; MECHANICAL ENGINEERING ; PHYSICS ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; TESTING ; WEAPONS</subject><creationdate>1990</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900709&DB=EPODOC&CC=JP&NR=H02176174A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900709&DB=EPODOC&CC=JP&NR=H02176174A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUGA TSUNEO</creatorcontrib><creatorcontrib>ISHII MIEKO</creatorcontrib><creatorcontrib>TANAKA NAOYUKI</creatorcontrib><title>CONTROL METHOD FOR NON-PULSATING PUMP</title><description>PURPOSE:To grasp the fluctuation of delivery pressure value accurately in a two-throw type reciprocating non-pulsating pump by determining the sampling time of the delivery pressure value according to the accuracy of the digitalized delivery pressure value and the cycle of pressure pulsation. CONSTITUTION:When a start signal is inputted through a pulse generator 36 from a start/stop button 35, a microcomputer 34 calculates pulse motor driving frequency and the like from a flow signal set by a setter 32 through a code converter 33, drives a two-throw type reciprocating pump 31 through a driver 37, detects combined delivery pressure at a sensor 38, performs its sampling through an A/D converter 39 and controls it to be kept constant. The microcomputer 34 further determines the sampling time of this delivery pressure value by a program in the microcomputer 34 according to the accuracy of the delivery pressure value digitalized at the A/D converter 39 and the cycle of pressure pulsation and controls the A/D converter 39 through a control line 40. The fluctuation of delivery pressure value can be thus seized accurately so as to aim at decrease in pressure pulsation.</description><subject>BLASTING</subject><subject>HEATING</subject><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>LIGHTING</subject><subject>MEASURING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PHYSICS</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>TESTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB19vcLCfL3UfB1DfHwd1Fw8w9S8PP30w0I9Ql2DPH0c1cICPUN4GFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgZGhuZmhuYmjsbEqAEAtDMjoA</recordid><startdate>19900709</startdate><enddate>19900709</enddate><creator>SUGA TSUNEO</creator><creator>ISHII MIEKO</creator><creator>TANAKA NAOYUKI</creator><scope>EVB</scope></search><sort><creationdate>19900709</creationdate><title>CONTROL METHOD FOR NON-PULSATING PUMP</title><author>SUGA TSUNEO ; ISHII MIEKO ; TANAKA NAOYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH02176174A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</creationdate><topic>BLASTING</topic><topic>HEATING</topic><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>LIGHTING</topic><topic>MEASURING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PHYSICS</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>TESTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>SUGA TSUNEO</creatorcontrib><creatorcontrib>ISHII MIEKO</creatorcontrib><creatorcontrib>TANAKA NAOYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SUGA TSUNEO</au><au>ISHII MIEKO</au><au>TANAKA NAOYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CONTROL METHOD FOR NON-PULSATING PUMP</title><date>1990-07-09</date><risdate>1990</risdate><abstract>PURPOSE:To grasp the fluctuation of delivery pressure value accurately in a two-throw type reciprocating non-pulsating pump by determining the sampling time of the delivery pressure value according to the accuracy of the digitalized delivery pressure value and the cycle of pressure pulsation. CONSTITUTION:When a start signal is inputted through a pulse generator 36 from a start/stop button 35, a microcomputer 34 calculates pulse motor driving frequency and the like from a flow signal set by a setter 32 through a code converter 33, drives a two-throw type reciprocating pump 31 through a driver 37, detects combined delivery pressure at a sensor 38, performs its sampling through an A/D converter 39 and controls it to be kept constant. The microcomputer 34 further determines the sampling time of this delivery pressure value by a program in the microcomputer 34 according to the accuracy of the delivery pressure value digitalized at the A/D converter 39 and the cycle of pressure pulsation and controls the A/D converter 39 through a control line 40. The fluctuation of delivery pressure value can be thus seized accurately so as to aim at decrease in pressure pulsation.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS TESTING WEAPONS |
| title | CONTROL METHOD FOR NON-PULSATING PUMP |
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