Flow enlarging valve and hydraulic steering system
The invention relates to a flow enlarging valve so as to overcome the defects that an existing flow enlarging valve is large in energy loss, poor in controllability and large in hydraulic impact. The flow enlarging valve is provided with an oil port P, an oil port T, an oil port A, an oil port B, an...
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| creator | CHU CHANGXIANG NONG MIANGENG LIANG ZHENGUO FAN WUDE TAN YANHUI JIANG WEI |
| description | The invention relates to a flow enlarging valve so as to overcome the defects that an existing flow enlarging valve is large in energy loss, poor in controllability and large in hydraulic impact. The flow enlarging valve is provided with an oil port P, an oil port T, an oil port A, an oil port B, an oil port L and an oil port R, wherein the oil port P and the oil port T are connected with an oil inlet and an oil return opening of a reversing valve, the oil port A and the oil port B are correspondingly connected with working oil ports of the reversing valve, and the oil port L and the oil port R are connected with the left hydraulic control end and the right hydraulic control end of the reversing valve. When the reversing valve is in a left position, the oil port L, the oil port P, the oil port A and an oil port LS are communicated with one another, and the oil port B is communicated with the oil port T. When the reversing valve is in a right position, the oil port R, the oil port P, the oil port B and the oil port LS are communicated with one another, and the oil port A is communicated with the oil port T. When the reversing valve is in a middle position, the oil port LS is communicated with the oil port T. According to the flow enlarging valve, high-pressure oil is guided to be converged to the oil port A or the oil port B first to act on a hydraulic oil cylinder, the oil port LS is used as the signal input of a load-sensitive variable pump, and the problems of being large in hydraulic energy loss, poor in controllability and large in hydraulic impact caused in the steering process of a loading machine can be solved through the principle. |
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The flow enlarging valve is provided with an oil port P, an oil port T, an oil port A, an oil port B, an oil port L and an oil port R, wherein the oil port P and the oil port T are connected with an oil inlet and an oil return opening of a reversing valve, the oil port A and the oil port B are correspondingly connected with working oil ports of the reversing valve, and the oil port L and the oil port R are connected with the left hydraulic control end and the right hydraulic control end of the reversing valve. When the reversing valve is in a left position, the oil port L, the oil port P, the oil port A and an oil port LS are communicated with one another, and the oil port B is communicated with the oil port T. When the reversing valve is in a right position, the oil port R, the oil port P, the oil port B and the oil port LS are communicated with one another, and the oil port A is communicated with the oil port T. When the reversing valve is in a middle position, the oil port LS is communicated with the oil port T. According to the flow enlarging valve, high-pressure oil is guided to be converged to the oil port A or the oil port B first to act on a hydraulic oil cylinder, the oil port LS is used as the signal input of a load-sensitive variable pump, and the problems of being large in hydraulic energy loss, poor in controllability and large in hydraulic impact caused in the steering process of a loading machine can be solved through the principle.</description><language>eng</language><subject>BLASTING ; 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 ; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS ; LIGHTING ; MECHANICAL ENGINEERING ; MOTOR VEHICLES ; PERFORMING OPERATIONS ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; TRAILERS ; TRANSPORTING ; WEAPONS</subject><creationdate>2015</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=20151230&DB=EPODOC&CC=CN&NR=105201944A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151230&DB=EPODOC&CC=CN&NR=105201944A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHU CHANGXIANG</creatorcontrib><creatorcontrib>NONG MIANGENG</creatorcontrib><creatorcontrib>LIANG ZHENGUO</creatorcontrib><creatorcontrib>FAN WUDE</creatorcontrib><creatorcontrib>TAN YANHUI</creatorcontrib><creatorcontrib>JIANG WEI</creatorcontrib><title>Flow enlarging valve and hydraulic steering system</title><description>The invention relates to a flow enlarging valve so as to overcome the defects that an existing flow enlarging valve is large in energy loss, poor in controllability and large in hydraulic impact. The flow enlarging valve is provided with an oil port P, an oil port T, an oil port A, an oil port B, an oil port L and an oil port R, wherein the oil port P and the oil port T are connected with an oil inlet and an oil return opening of a reversing valve, the oil port A and the oil port B are correspondingly connected with working oil ports of the reversing valve, and the oil port L and the oil port R are connected with the left hydraulic control end and the right hydraulic control end of the reversing valve. When the reversing valve is in a left position, the oil port L, the oil port P, the oil port A and an oil port LS are communicated with one another, and the oil port B is communicated with the oil port T. When the reversing valve is in a right position, the oil port R, the oil port P, the oil port B and the oil port LS are communicated with one another, and the oil port A is communicated with the oil port T. When the reversing valve is in a middle position, the oil port LS is communicated with the oil port T. According to the flow enlarging valve, high-pressure oil is guided to be converged to the oil port A or the oil port B first to act on a hydraulic oil cylinder, the oil port LS is used as the signal input of a load-sensitive variable pump, and the problems of being large in hydraulic energy loss, poor in controllability and large in hydraulic impact caused in the steering process of a loading machine can be solved through the principle.</description><subject>BLASTING</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>HEATING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>MOTOR VEHICLES</subject><subject>PERFORMING OPERATIONS</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>TRAILERS</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDByy8kvV0jNy0ksSs_MS1coS8wpS1VIzEtRyKhMKUoszclMViguSU0tAkkWVwKZuTwMrGmJOcWpvFCam0HRzTXE2UM3tSA_PrW4IDE5NS-1JN7Zz9DA1MjA0NLExNGYGDUA2mQsOA</recordid><startdate>20151230</startdate><enddate>20151230</enddate><creator>CHU CHANGXIANG</creator><creator>NONG MIANGENG</creator><creator>LIANG ZHENGUO</creator><creator>FAN WUDE</creator><creator>TAN YANHUI</creator><creator>JIANG WEI</creator><scope>EVB</scope></search><sort><creationdate>20151230</creationdate><title>Flow enlarging valve and hydraulic steering system</title><author>CHU CHANGXIANG ; NONG MIANGENG ; LIANG ZHENGUO ; FAN WUDE ; TAN YANHUI ; JIANG WEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN105201944A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2015</creationdate><topic>BLASTING</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>HEATING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>MOTOR VEHICLES</topic><topic>PERFORMING OPERATIONS</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>TRAILERS</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>CHU CHANGXIANG</creatorcontrib><creatorcontrib>NONG MIANGENG</creatorcontrib><creatorcontrib>LIANG ZHENGUO</creatorcontrib><creatorcontrib>FAN WUDE</creatorcontrib><creatorcontrib>TAN YANHUI</creatorcontrib><creatorcontrib>JIANG WEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHU CHANGXIANG</au><au>NONG MIANGENG</au><au>LIANG ZHENGUO</au><au>FAN WUDE</au><au>TAN YANHUI</au><au>JIANG WEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Flow enlarging valve and hydraulic steering system</title><date>2015-12-30</date><risdate>2015</risdate><abstract>The invention relates to a flow enlarging valve so as to overcome the defects that an existing flow enlarging valve is large in energy loss, poor in controllability and large in hydraulic impact. The flow enlarging valve is provided with an oil port P, an oil port T, an oil port A, an oil port B, an oil port L and an oil port R, wherein the oil port P and the oil port T are connected with an oil inlet and an oil return opening of a reversing valve, the oil port A and the oil port B are correspondingly connected with working oil ports of the reversing valve, and the oil port L and the oil port R are connected with the left hydraulic control end and the right hydraulic control end of the reversing valve. When the reversing valve is in a left position, the oil port L, the oil port P, the oil port A and an oil port LS are communicated with one another, and the oil port B is communicated with the oil port T. When the reversing valve is in a right position, the oil port R, the oil port P, the oil port B and the oil port LS are communicated with one another, and the oil port A is communicated with the oil port T. When the reversing valve is in a middle position, the oil port LS is communicated with the oil port T. According to the flow enlarging valve, high-pressure oil is guided to be converged to the oil port A or the oil port B first to act on a hydraulic oil cylinder, the oil port LS is used as the signal input of a load-sensitive variable pump, and the problems of being large in hydraulic energy loss, poor in controllability and large in hydraulic impact caused in the steering process of a loading machine can be solved through the principle.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING 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 LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRAILERS TRANSPORTING WEAPONS |
| title | Flow enlarging valve and hydraulic steering system |
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