| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Improvement in stop-cutters for cutting continuous sheets of paper into shorter ones | US58563D | US58563A | 1866-10-02 | ||
| 222 | Improvement in transmitting power | US53914D | US53914A | 1866-04-10 | ||
| 223 | VALVE DEVICE | EP16878073.2 | 2016-09-20 | EP3396174A1 | 2018-10-31 | TERAO, Takeshi |
A back-pressure control valve (40) includes: a switching valve (50) configured to open and close the connecting passage (13); and an emergency operation valve (60) provided in the branch passage (14), the emergency operation valve (60) being configured to open and close the branch passage (14) by being operated manually. The emergency operation valve (60) has a valve main body (11) and a valve body (61). The valve body (61) includes: the main body portion (62) having the screw portion (62a) threaded into the valve main body (11); and the seat portion (63) formed on the tip end of the main body portion (62), the seat portion (63) being configured to open and close the branch passage (14) by being seated on and separated from the valve seat (16c) provided in the accommodating hole (16). |
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| 224 | HYDRAULIC CONNECTION HAVING A FLEXIBLE PORT MOUTH AND METHOD FOR CONNECTING SAME | EP16879908.8 | 2016-12-16 | EP3394493A1 | 2018-10-31 | LANDRUM, Michael T. |
| A hydraulically balanced assembly is provided. The assembly includes: a valve body defining a tapered axial passageway; and a rotor having a tapered outer diameter such that the rotor has a first portion having a wider diameter and a second portion having a smaller diameter, the rotor being dimensioned to fit within the axial passageway of the valve body, the rotor further defining a rotor axial passageway having a first passageway portion and second passageway portion, the rotor further defining a first and second port, where each of the first and second ports provide fluid communication between the tapered outer diameter and the rotor axial passageway, wherein the first and second portions define openings having different cross-sectional areas where the first passageway portion is located in a first portion of the rotor and a second passageway portion is located in the second portion of the rotor and the difference in cross-sectional areas between the first passageway portion and second passageway portion and the amount of taper of the outer diameter of the rotor are related according to the Landrum relation. | ||||||
| 225 | HYDRAULIC CONNECTION HAVING A FLEXIBLE PORT MOUTH AND METHOD FOR CONNECTING SAME | EP16879909.6 | 2016-12-16 | EP3394485A1 | 2018-10-31 | LANDRUM, Michael T. |
| A hydraulically balanced assembly is provided. The assembly includes: a valve body defining a tapered axial passageway; and a rotor having a tapered outer diameter such that the rotor has a first portion having a wider diameter and a second portion having a smaller diameter, the rotor being dimensioned to fit within the axial passageway of the valve body, the rotor further defining a rotor axial passageway having a first passageway portion and second passageway portion, the rotor further defining a first and second port, where each of the first and second ports provide fluid communication between the tapered outer diameter and the rotor axial passageway, wherein the first and second portions define openings having different cross-sectional areas where the first passageway portion is located in a first portion of the rotor and a second passageway portion is located in the second portion of the rotor and the difference in cross-sectional areas between the first passageway portion and second passageway portion and the amount of taper of the outer diameter of the rotor are related according to the Landrum relation. | ||||||
| 226 | PILOT OPERATED SWITCHING VALVE | EP16888041.7 | 2016-09-16 | EP3385582A1 | 2018-10-10 | TERAO, Takeshi |
A pilot type switching valve (50) includes: a housing bore (53) formed in a valve body (52), the housing bore (53) having an opening end (53a); a spool (54) slidably housed in the housing bore (53), the spool (54) being configured to allow or block a flow of the working fluid to a first relief valve (60); a pilot chamber (51) to which pilot pressure biasing the spool (54) in the valve opening direction is guided; and a spring (55) configured to bias the spool (54) in the valve closing direction. The spool (54) has a bottom surface (54b) on which the pilot pressure acts in such a manner that the spool (54) is biased in the valve opening direction, and the area of the bottom surface (54b) is smaller than the sectional area of the housing bore (53). |
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| 227 | COUNTER BALANCE VALVE AND FLUID PRESSURE CONTROL DEVICE PROVIDED WITH COUNTER BALANCE VALVE | EP16865999.3 | 2016-09-09 | EP3379090A1 | 2018-09-26 | ITO, Tatsuo; SUGIMOTO, Junichiro |
A counterbalance valve (10) includes: a valve-side passage (14a,14b) communicating with the directional control valve (3); a motor-side passage (15a,15b) communicating with the fluid pressure motor (2); a control valve (11) configured to control flowing of working fluid between the valve-side passage (14a,14b) and the motor-side passage (15a,15b) when the directional control valve (3) is switched; a pilot chamber (11a,11b) to which pilot pressure for controlling the control valve (11) is guided; a pilot passage (13a,13b) communicating the valve-side passage (14a,14b) with the pilot chamber (11a,11b); and a flow rate control valve (12a,12b) configured to variably control a flow rate of working fluid flowing through the pilot passage (13a,13b). |
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| 228 | PUMP UNIT AND ACTUATOR | EP16846041.8 | 2016-06-02 | EP3351795A1 | 2018-07-25 | OGAWA, Takayuki; KOUGE, Takuya |
To provide a pump unit capable of shortening the overall length thereof and maintaining mechanical efficiency even after long-term use and also to provide an actuator having such a pump unit. A pump unit (U) includes a hydraulic pump (P), a motor (M), a coupling (8) coupling a drive shaft (2) of the hydraulic pump (P) and a shaft (7) of the motor (M), a holder (H) having a housing portion (L) that is hollow and houses the coupling (8), and an introduction passage (D) that guides the hydraulic oil to the housing part (L). |
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| 229 | HYDRAULIC APPARATUS | EP16814120 | 2016-06-02 | EP3315791A4 | 2018-06-27 | SAKAMOTO KUNIHIKO |
| An object is to prevent a decrease in an operating speed of an external hydraulic work machine when actuation and turning operation of the external hydraulic work machine are performed at the same time. A hydraulic apparatus for a hydraulic work vehicle capable of supplying pressure oil to any of a bucket cylinder (20), an arm cylinder (21), a boom cylinder (22), a swing cylinder (25), a blade cylinder (13), a turning hydraulic motor (62), a left traveling hydraulic motor (63), a right traveling hydraulic motor (64), and a PTO hydraulic motor (65) by a first hydraulic pump (PI), a second hydraulic pump (P2), or a third hydraulic pump (P3) is configured in such a manner that pressure oil can be branched off from a discharge oil passage (28) of the third hydraulic pump (P3) and supplied through an external pipe (71) to a downstream side of a load check valve (46) disposed on an oil passage communicating with a pump port (36p) of a PTO control valve (36) for switching supply of pressure oil from the second hydraulic pump (P2) to an external hydraulic work machine (16). | ||||||
| 230 | SUCTION STRAINER | EP16811591.3 | 2016-06-13 | EP3311899A1 | 2018-04-25 | TAKU Meiho; ISHIZUKA Makoto; OSHITA Tatsuhiro |
The present invention is capable of removing air bubbles. According to the present invention, on the outer side of a first filtration portion (14) having a substantially cylindrical shape and formed by bending a thin plate into a pleated shape, a second filtration portion (15) is provided. The second filtration portion (15) has a substantially cylindrical shape and is formed of a material having a plurality of spaces formed in a surface and interior of the material. |
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| 231 | HYDRAULIC CIRCUIT FOR CONSTRUCTION MACHINE | EP15815795 | 2015-05-26 | EP3165777A4 | 2018-04-04 | IWASAKI HITOSHI |
| A recycling passage 71 is configured to perform "pressure oil recycling," in which the recycling passage 71 feeds boom discharge oil 35Fo (recycling discharge oil) discharged from a boom cylinder 23F (a recycling actuator), to the boom cylinder 23F (an actuator actuated with feeding of discharge oil from a second pump 12). A first sensing pressure rising passage 81 feeds a part of boom discharge oil 35Fo to a first unload passage 31 upstream of a first pressure sensing unit 61p when the pressure oil recycling is performed. | ||||||
| 232 | CYLINDER DEVICE | EP15850577 | 2015-10-08 | EP3109504A4 | 2017-11-15 | OGAWA TAKAYUKI |
| A cylinder device (C1) includes a recess (2a) provided on either one of the piston (2) and the cylinder (1), the recess (2a) facing the other one of the piston (2) and the cylinder (1); an extension-side discharge passage (6) configured to permit only a flow of liquid from the extension-side chamber (R1) toward the recess (2a); a compression-side discharge passage (7) configured to permit only a flow of liquid from the compression-side chamber (R2) toward the recess (2a); a tank-side discharge passage (8) configured to allow the extension-side discharge passage (6) and the compression-side discharge passage (7) to communicate with the tank (T) through the recess (2a); an extension-side damping force generation passage (9) configured to apply a resistance to a flow of liquid passing therethrough so as to exert a damping force during extension; and a compression-side damping force generation passage (10) configured to apply a resistance to a flow of liquid passing therethrough so as to exert a damping force during contraction. | ||||||
| 233 | HYDRAULIC CONTROL DEVICE FOR OPERATING MACHINE | EP15857003.6 | 2015-08-28 | EP3217019A1 | 2017-09-13 | MORIKI Hidekazu; IMURA Shinya; UDAGAWA Tsutomu; YAMASHITA Ryohei; ISHIKAWA Kouji |
The invention provides an energy-saving hydraulic control system for a work machine including a specific actuator that can supply a hydraulic fluid from a plurality of hydraulic pumps. The hydraulic control system for a work machine includes: a first hydraulic pump and a second hydraulic pump capable of communicating with a first hydraulic actuator; a first control valve capable of returning a hydraulic fluid delivered by the first hydraulic pump to a tank; and a load detection section that detects a load on the first hydraulic actuator. The hydraulic control system includes: a control valve drive section that drives the first control valve such that a communication area between the first hydraulic pump and the tank is enlarged corresponding to an increase in the load on the first hydraulic actuator; and a flow rate control section that, during supply of the hydraulic fluid from the first hydraulic pump and the second hydraulic pump to the first hydraulic actuator, controls to reduce a delivery flow rate of the first hydraulic pump corresponding to an increase in the load on the first hydraulic actuator. |
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| 234 | HYDRAULIC CIRCUIT FOR CONSTRUCTION MACHINE AND CONTROL DEVICE FOR SAME | EP13827990.6 | 2013-04-11 | EP2884117B1 | 2016-11-23 | HASHIMOTO, Hirofumi |
| A hydraulic circuit for a construction machine including a center bypass passage, into which a pressurized oil discharged from a hydraulic pump may be supplied, including a directional control valve group including a plurality of directional control valves arranged in tandem with the center bypass passage; and a bleed-off valve arranged in the center bypass passage on a downstream side of the directional control valve group, wherein each directional control valve includes a first internal passage for causing the pressurized oil supplied to the directional control valve to flow out to the center bypass passage and a second internal passage for supplying the pressurized oil to a cylinder port, wherein a parallel passage is formed by the center bypass passage and the first internal passage by causing, by the first internal passage, the pressurized oil discharged from the hydraulic pump to flow out to the center bypass passage on the downstream side of the directional control valve, wherein the second internal passage supplies the pressurized oil from the center bypass passage through an opening of a spool and/or the bypass passage to the cylinder port. | ||||||
| 235 | HYDRAULIC CIRCUIT FOR CONSTRUCTION MACHINERY AND CONTROL DEVICE FOR SAME | EP13827990 | 2013-04-11 | EP2884117A4 | 2015-09-09 | HASHIMOTO HIROFUMI |
| A hydraulic circuit for a construction machine including a center bypass passage, into which a pressurized oil discharged from a hydraulic pump may be supplied, including a directional control valve group including a plurality of directional control valves arranged in tandem with the center bypass passage; and a bleed-off valve arranged in the center bypass passage on a downstream side of the directional control valve group, wherein each directional control valve includes a first internal passage for causing the pressurized oil supplied to the directional control valve to flow out to the center bypass passage and a second internal passage for supplying the pressurized oil to a cylinder port, wherein a parallel passage is formed by the center bypass passage and the first internal passage by causing, by the first internal passage, the pressurized oil discharged from the hydraulic pump to flow out to the center bypass passage on the downstream side of the directional control valve, wherein the second internal passage supplies the pressurized oil from the center bypass passage through an opening of a spool and/or the bypass passage to the cylinder port. | ||||||
| 236 | ENGINE CONTROL METHOD OF CONSTRUCTION MACHINE | EP11878350.5 | 2011-12-28 | EP2799692A1 | 2014-11-05 | YUN, Seong-Geun; PARK, Sung-Bok; JEE, Se-Rib |
An engine control system for a construction machine is disclosed, which can compulsorily stop engine driving when an attachment or the like malfunctions against an operator's intention during the operation of an excavator or the like. The engine control system includes a first step of determining whether pilot signal pressure, which is detected when at least one of an operation lever and a traveling pedal for respectively operating an attachment, a swing device, and a traveling device is operated, exceeds a first set pressure, and a second step of determining whether the pressure on the outlet side of a main hydraulic pump exceeds a second set pressure, wherein if the pilot signal pressure detected in the first step does not exceed the first pressure and the pressure of the main hydraulic pump detected in the second step exceeds the second pressure, engine driving is compulsorily stopped by means of a control signal from the controller. |
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| 237 | VEHICLE CONTROL DEVICE | EP11856508.4 | 2011-01-18 | EP2666994A1 | 2013-11-27 | SHIMADA, Hiroshi; SHIMADA, Michihito; TAKAGI, Masashi; OHBAYASHI, Motonari; KODAMA, Shinya; KIDA, Akihiro; ONISHI, Akito; OISHI, Toshiya; KITAMURA, Takamasa |
A vehicle control device 1, that controls to suppress a driving force of a vehicle based on an operation of a brake pedal 60 operated when a braking force is generated by a braking device 40, wherein the brake pedal 60 is connected to a brake booster 44, that increases an operating force input to the brake pedal 60 by using a brake negative pressure to transmit to brake fluid of the braking device 40 in order to appropriately control by appropriately detecting the operation of the brake pedal 60; and the driving force is suppressed according to an M/C pressure when the brake negative pressure is higher than a brake negative pressure threshold value, and the driving force is suppressed according to an operation state of the brake pedal 60 when the brake negative pressure is equal to or lower than the brake negative pressure threshold value. |
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| 238 | COUNTER-BALANCE VALVE | EP95934832 | 1995-10-18 | EP0787904A4 | 1997-12-17 | ARAI MITSURU; HAYASHI SEITA; NUNOTANI SADAO; KADO HIDEKI |
| A counter-balance valve having the construction wherein a valve hole having first and second pump-side ports, first and second motor-side ports and an auxiliary port, a spool fitted to the valve hole slidably in the transverse direction and establishing or cutting off communication between ports, right and left springs for holding the spool at a neutral position at which communication between ports is cut off, a left pressure receiving chamber for moving the spool to a first travelling position at which the first pump-side port communicates with the auxiliary port and the second pump-side port communicates with the second motor-side port by a pressure oil supplied, and a right pressure receiving chamber for moving the spool to a second travelling position at which the second pump-side port communicates with the auxiliary port and the first pump-side port communicates with the first motor-side port by the pressure oil supplied, are provided to a valve main body, first shaft hole communicating with the left pressure receiving chamber, a second shaft hole communicating with the right pressure receiving chamber, first and second small diameter holes allowing normally the first and second shaft holes to communicate with the first and second pump-side ports and first and second large diameter holes for allowing the first and second shaft holes to communicate with the outer peripheral surface of the spool are formed on the spool, respectively, the first and second large diameter holes are closed when the spool exists at the neutral position and at the position between the neutral position and the first and second travelling positions, and the first and second large diameter holes communicate with the auxiliary port when the spool exists at the first and second travelling positions. | ||||||
| 239 | FLUID CONTROL VALVE | US15771139 | 2016-10-20 | US20180355892A1 | 2018-12-13 | Hirosuke YAMADA; Kenji SHISHIDO |
| A fluid control valve includes a supply-air passage allowing a first port and a second port to communicate with each other, an exhaust-air passage allowing the second port and a third port to communicate with each other, a first check valve provided to the supply-air passage, a second check valve provided to the exhaust-air passage, a valve element that opens and closes a passage from the second port to the third port, and a valve hole in which the valve element is housed. The exhaust-air passage is provided between the valve hole and the valve element. The valve element has a first pressure-receiving surface that causes a fluid pressure at the first port to act, and a second pressure-receiving surface that causes a fluid pressure at the second port to act. | ||||||
| 240 | VALVE DEVICE | US15778094 | 2016-09-20 | US20180347599A1 | 2018-12-06 | Takeshi TERAO |
| A back-pressure control valve includes: a switching valve configured to open and close the connecting passage; and an emergency operation valve provided in the branch passage, the emergency operation valve being configured to open and close the branch passage by being operated manually. The emergency operation valve has a valve main body and a valve body. The valve body includes: the main body portion having the screw portion threaded into the valve main body; and the seat portion formed on the tip end of the main body portion, the seat portion being configured to open and close the branch passage by being seated on and separated from the valve seat provided in the accommodating hole. | ||||||
