Master cylinder, master cylinder body, and method for producing master cylinder
A master cylinder that can prevent impairment of a piston seal, and a method of producing the master cylinder are provided. A master cylinder has a circumferential groove (47) in which a piston seal is provided, the piston seal having an outer circumference which enables operating fluid to be suppli...
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| creator | KOSHIMIZU NAGANORI MOURI TOMONORI |
| description | A master cylinder that can prevent impairment of a piston seal, and a method of producing the master cylinder are provided. A master cylinder has a circumferential groove (47) in which a piston seal is provided, the piston seal having an outer circumference which enables operating fluid to be supplied, and a communication groove (96) which opens into the circumferential groove (47) and extends from the circumferential groove (47) toward a bottom portion of a cylinder body (15) to connect a pressure chamber and the circumferential groove (47). The communication groove (96) is formed with its center made eccentric relative to the center of the circumferential groove (47). A chamfered portion (100) is formed over an entire extent of a corner portion formed by the circumferential groove (47) and the communication groove (96), along a circular path concentric with the communication groove (96). |
| format | Patent |
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A master cylinder has a circumferential groove (47) in which a piston seal is provided, the piston seal having an outer circumference which enables operating fluid to be supplied, and a communication groove (96) which opens into the circumferential groove (47) and extends from the circumferential groove (47) toward a bottom portion of a cylinder body (15) to connect a pressure chamber and the circumferential groove (47). The communication groove (96) is formed with its center made eccentric relative to the center of the circumferential groove (47). A chamfered portion (100) is formed over an entire extent of a corner portion formed by the circumferential groove (47) and the communication groove (96), along a circular path concentric with the communication groove (96).</description><language>eng</language><subject>ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL ; BLASTING ; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; TRANSPORTING ; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF ; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES ; VEHICLES IN GENERAL ; WEAPONS</subject><creationdate>2010</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=20100413&DB=EPODOC&CC=US&NR=7694516B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20100413&DB=EPODOC&CC=US&NR=7694516B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOSHIMIZU NAGANORI</creatorcontrib><creatorcontrib>MOURI TOMONORI</creatorcontrib><title>Master cylinder, master cylinder body, and method for producing master cylinder</title><description>A master cylinder that can prevent impairment of a piston seal, and a method of producing the master cylinder are provided. A master cylinder has a circumferential groove (47) in which a piston seal is provided, the piston seal having an outer circumference which enables operating fluid to be supplied, and a communication groove (96) which opens into the circumferential groove (47) and extends from the circumferential groove (47) toward a bottom portion of a cylinder body (15) to connect a pressure chamber and the circumferential groove (47). The communication groove (96) is formed with its center made eccentric relative to the center of the circumferential groove (47). 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A master cylinder has a circumferential groove (47) in which a piston seal is provided, the piston seal having an outer circumference which enables operating fluid to be supplied, and a communication groove (96) which opens into the circumferential groove (47) and extends from the circumferential groove (47) toward a bottom portion of a cylinder body (15) to connect a pressure chamber and the circumferential groove (47). The communication groove (96) is formed with its center made eccentric relative to the center of the circumferential groove (47). A chamfered portion (100) is formed over an entire extent of a corner portion formed by the circumferential groove (47) and the communication groove (96), along a circular path concentric with the communication groove (96).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BLASTING BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS |
| title | Master cylinder, master cylinder body, and method for producing master cylinder |
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