KYB corporation

Kawasaki, Japan

KYB corporation

Kawasaki, Japan
SEARCH FILTERS
Time filter
Source Type

Patent
KYB Corporation | Date: 2017-05-17

A hydraulic drive system includes: a first hydraulic motor (12) and a second hydraulic motor (22) configured to be driven by working oils respectively discharged from a first hydraulic pump (11) and a second hydraulic pump (21) to transmit powers to different drive wheels of right and left drive wheels (2, 3); a first pump control unit (13) and a second pump control unit (23) configured to control discharge volumes and discharge directions of the first hydraulic pump (11) and the second hydraulic pump (21); a signal pressure generating unit (40) configured to generate a signal pressure for adjusting command pressures to control the first pump control unit (13) and the second pump control unit (23) in accordance with the sum of discharge pressures of the first hydraulic pump (11) and the second hydraulic pump (21); and a first pressure adjusting unit (50) and a second pressure adjusting unit (60) configured to adjust the command pressures in accordance with the signal pressure.


Patent
KYB Corporation | Date: 2017-05-17

A hydraulic piston pump motor (100) in which water is used as a working fluid includes an axial directional passage (15) opened on an end surface of one end (1a) of a shaft (1) that couples to a cylinder block (2) and drilled open along a shaft center of the shaft (1); a first radial directional passage (16) drilled open along a radial direction of the shaft (1) from the axial directional passage (15) and configured to guide working fluid into a casing (3); a second radial directional passage (17) drilled open from the axial directional passage (15) along the radial direction of the shaft (1) at a position closer to the one end (1a) of the shaft (1) than the first radial directional passage (16); and an introduction passage (13) communicating a passage, through which the higher pressure working fluid flows, among the supply passage (10) and the discharge passage (11) with the axial directional passage (15).


Patent
KYB Corporation | Date: 2017-05-17

A mixer drum (10) apparatus to stir material to be stored includes a freely-rotatable drum (10) having an opening end (11) opened at one end to receive the material to be stored therein, a plurality of spirally-shaped blades (20, 30) provided inside the drum (10) to have a phase difference, and an inlet seal (40) provided at the opening end (11) of the drum (10) and connected partially to the blades (20, 30). The inlet seal (40) located between the blades (20, 30) forms an opening causing the material to be stored to pass through.


Patent
KYB Corporation | Date: 2017-05-17

A hydraulic rotary machine (100) includes a plurality of pistons (6), a cylinder block (2) accommodating the pistons (6), a shaft (1) penetrating through the cylinder block (2), a swash plate (11) making the pistons (6) reciprocate to expand and contract a capacity chamber of the cylinder (2b), a casing (3) accommodating the cylinder block (2), a front cover (4) closing an opened end of the casing (3), an extending portion (4b) formed in the front cover (4) and extending along the shaft (1) towards the cylinder block (2), and a first slide bearing (20) provided between the extending portion (4b) and the cylinder block (2). The first slide bearing (20) is fixed to the extending portion (4b) or the cylinder block (2) by a pin member (21).


Patent
KYB Corporation | Date: 2017-01-25

A front fork includes a pair of telescopic tube members and an upper bracket on an upper side and an under bracket on a lower side. The upper bracket and the under bracket couple vehicle body side tubes of the pair of tube members and couple the vehicle body side tubes to a vehicle body side. The upper bracket includes a pair of cap portions into which upper side opening portions of the vehicle body side tubes are inwardly inserted. The cap portions cover upper side openings of the tube members.


Patent
Kyb Corporation | Date: 2017-01-11

An object is to provide a cylinder device which can be used successfully over a long period of time. The cylinder device includes a cylinder (1), a piston (7), an external cylinder (11), a tank (25) and first piping (30). The piston (7) is slidably inserted into the cylinder (1) . The piston (7) divides an interior of the cylinder (1) into a rod-side chamber (8) and a piston-side chamber (9). The external cylinder (11) is disposed outside the cylinder (1) and covers the cylinder (1) . The tank (25) is formed in a space between the cylinder (1) and the external cylinder (11) and stores an operating fluid. The first piping (30) constitutes part of a first passage (T1) through which passes the operating fluid supplied to and discharged from the rod-side chamber (8) or the piston-side chamber (9) . The first piping (30) has two ends one of which has a larger outer diameter than the other end. The first piping (30) is disposed in the tank (25).


Patent
KYB Corporation | Date: 2017-09-13

A suspension device (S) includes an actuator device (AD) provided with an extensible/contractible actuator body (A) interposed between a sprung member (B) and an unsprung member (W) of a vehicle, a pump (4) that supplies fluid to the actuator body (A) to extend or contract the actuator body (A), and a controller (C) that controls a rotation number of the pump (4). The controller (C) has a road surface state index obtainment unit (41) that obtains a road surface state index (I) and a target rotation number determination unit (43) that determines a target rotation number (Nref of the pump (4) on the basis of the road surface state index (I).


Patent
KYB Corporation | Date: 2017-09-13

A suspension device (S) includes: a damper (D) that has an extension-side chamber (R1) and a contraction-side chamber (R2); an extension-side passage (7) connected to the extension-side chamber (R1); a contraction-side passage (8) connected to the contraction-side chamber (R2); a switching device (9) that connects one of the extension-side passage (7) and the contraction-side passage (8) to the supply passage (5) and connecting the other of the extension-side passage (7) and the contraction-side passage (8) to the discharge passage (6) selectively; an extension-side damping element (VE) provided in the extension-side passage (7); a contraction-side damping element (VC) provided in the contraction-side passage (8); a control valve (V) capable of adjusting a pressure in the supply passage (5); an intake check valve (11) provided midway in the intake passage (10); and a supply-side check valve (12) provided in the supply passage (5) between the control valve (V) and the pump (4).


Patent
KYB Corporation | Date: 2017-09-27

Providing a sealing member which can successfully scrape off foreign substances and prevent failure caused by incorporation of foreign substances. A dust seal (39) serving as a sealing member includes a dust seal body (36) and a lip member (38) . The dust seal body (36) has a predetermined elasticity and is retained in an opening (25) of an outer tube (21) into which an inner tube (23) reciprocated in a projected state is inserted. The lip member (38) is harder than the dust seal body (36) and is attached to a distal end of the dust seal body (36). The lip member (38) has a distal end which is brought into sliding contact with an outer peripheral surface of the inner tube (23).


Patent
KYB Corporation | Date: 2017-09-13

A suspension device (S1) includes an actuator (A) capable of generating a thrust force and a controller (C1). The controller (C1) includes a first vibration suppression force computation unit (12) configured to obtain a first vibration suppression force (F1) from a vertical velocity (Vb) of a sprung member (B), a second vibration suppression force computation unit (13) configured to obtain a second vibration suppression force (F2) from a vertical velocity (Vw) of the unsprung member (W) or a relative velocity (Vs) between the sprung member (B) and the unsprung member (Vw), a low-pass filter (L1) having a breakpoint frequency (c) between a sprung resonance frequency (b) and an unsprung resonance frequency (w) and processing a signal (Fw) in the course of obtaining the second vibration suppression force (F2) using the second vibration suppression force computation unit (13), and a target thrust force computation unit (15) configured to obtain a target thrust force of the actuator (A) on the basis of the first vibration suppression force (F1) and the second vibration suppression force (F2).

Loading KYB corporation collaborators
Loading KYB corporation collaborators