ROTOR OF SCREW COMPRESSOR

PURPOSE:To reduce the leakage of compressed gas by providing pressure relief grooves on the end surface of a rotor for generating almost the same effect as under a condition that there is a very small gap between the end surface of a screw rotor and a casing. CONSTITUTION:Several pressure relief gro...

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1. Verfasser:	OBATA HIROYASU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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creator	OBATA HIROYASU
description	PURPOSE:To reduce the leakage of compressed gas by providing pressure relief grooves on the end surface of a rotor for generating almost the same effect as under a condition that there is a very small gap between the end surface of a screw rotor and a casing. CONSTITUTION:Several pressure relief grooves 4 are provided along the outer shape (tooth shape) of four or five teeth and above and below At-O1 astern surface side) and below At-O1 (ahead surface side) are not connected to each other. In addition, the pressure relief groove 4 of one tooth is not connected to the pressure relief groove 4 of other tooth, and the end of each pressure relief groove is closed. Thereby, the leakage through pressure relief grooves 4 is prevented.
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CONSTITUTION:Several pressure relief grooves 4 are provided along the outer shape (tooth shape) of four or five teeth and above and below At-O1 astern surface side) and below At-O1 (ahead surface side) are not connected to each other. In addition, the pressure relief groove 4 of one tooth is not connected to the pressure relief groove 4 of other tooth, and the end of each pressure relief groove is closed. Thereby, the leakage through pressure relief grooves 4 is prevented.</description><language>eng</language><subject>BLASTING ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS ; WEAPONS</subject><creationdate>1984</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=19841005&DB=EPODOC&CC=JP&NR=S59176487A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19841005&DB=EPODOC&CC=JP&NR=S59176487A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OBATA HIROYASU</creatorcontrib><title>ROTOR OF SCREW COMPRESSOR</title><description>PURPOSE:To reduce the leakage of compressed gas by providing pressure relief grooves on the end surface of a rotor for generating almost the same effect as under a condition that there is a very small gap between the end surface of a screw rotor and a casing. CONSTITUTION:Several pressure relief grooves 4 are provided along the outer shape (tooth shape) of four or five teeth and above and below At-O1 astern surface side) and below At-O1 (ahead surface side) are not connected to each other. In addition, the pressure relief groove 4 of one tooth is not connected to the pressure relief groove 4 of other tooth, and the end of each pressure relief groove is closed. Thereby, the leakage through pressure relief grooves 4 is prevented.</description><subject>BLASTING</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS</subject><subject>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1984</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAM8g_xD1Lwd1MIdg5yDVdw9vcNCHINDvYP4mFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BwaaWhuZmJhbmjsbEqAEALFcgkg</recordid><startdate>19841005</startdate><enddate>19841005</enddate><creator>OBATA HIROYASU</creator><scope>EVB</scope></search><sort><creationdate>19841005</creationdate><title>ROTOR OF SCREW COMPRESSOR</title><author>OBATA HIROYASU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS59176487A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1984</creationdate><topic>BLASTING</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS</topic><topic>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>OBATA HIROYASU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OBATA HIROYASU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ROTOR OF SCREW COMPRESSOR</title><date>1984-10-05</date><risdate>1984</risdate><abstract>PURPOSE:To reduce the leakage of compressed gas by providing pressure relief grooves on the end surface of a rotor for generating almost the same effect as under a condition that there is a very small gap between the end surface of a screw rotor and a casing. CONSTITUTION:Several pressure relief grooves 4 are provided along the outer shape (tooth shape) of four or five teeth and above and below At-O1 astern surface side) and below At-O1 (ahead surface side) are not connected to each other. In addition, the pressure relief groove 4 of one tooth is not connected to the pressure relief groove 4 of other tooth, and the end of each pressure relief groove is closed. Thereby, the leakage through pressure relief grooves 4 is prevented.</abstract><oa>free_for_read</oa></addata></record>
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language	eng
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subjects	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
title	ROTOR OF SCREW COMPRESSOR
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