| Patent Number |
Title Of Patent |
Date Issued |
| 6880680 |
Electrically actuatable disc brake |
April 19, 2005 |
| In an electrically actuatable disc brake, rotation of a rotor of an electric motor is reduced by means of a differential reduction mechanism. A ball ramp mechanism is operated to press brake pads against a disc rotor to generate a braking force. In the differential reduction mechanism, w |
| 6862882 |
Pneumatic booster |
March 8, 2005 |
| There is provided a pneumatic booster having an ejector, which achieves space-saving and enables easy piping.An ejector 4 is provided within a constant-pressure chamber 3 formed in an outer shell 2. A connecting pipe 19 communicated with an outlet of a diffuser and a connecting pipe comm |
| 6860370 |
Controllable damping force hydraulic shock absorber |
March 1, 2005 |
| A piston having a piston rod connected thereto is slidably fitted in a cylinder in which a hydraulic fluid is sealably contained. Extension-stroke and compression-stroke pilot type damping force control mechanisms are provided in the piston. Check valves are provided at inlet opening |
| 6854572 |
Electrically operated disc brake |
February 15, 2005 |
| An electrically operated disc brake includes a ball/ramp mechanism operable to convert rotary motion of an electric motor to linear motion and transmit the linear motion to a piston so that the piston is advanced to urge a pair of friction pads against opposite sides of a disc rotor to |
| 6817454 |
Damping force control type hydraulic shock absorber |
November 16, 2004 |
| A piston connected to a piston rod is slidably fitted in a cylinder having a hydraulic fluid sealed therein. First and second poppet valves having different valve opening characteristics are provided in first and second extension main passages, respectively. A pilot control valve is prov |
| 6811002 |
Disc brake |
November 2, 2004 |
| The present invention provides a disc brake with an integral parking brake, in which a push rod, a push rod biasing member and a spring cover are formed into an assembly in the form of a single cartridge. The push rod is divided into two separate bodies, namely, a front body portion thre |
| 6808373 |
Scroll fluid machine having projections on a wrap peripheral surface |
October 26, 2004 |
| Inner peripheral projections are provided on the inner peripheral surface of a wrap portion of an orbiting scroll member, and outer peripheral projections are provided on the outer peripheral surface of the wrap portion. The inner and outer peripheral projections each have an approxi |
| 6796772 |
Ejector and negative-pressure supply apparatus using the same |
September 28, 2004 |
| An ejector can obtain a sufficiently large suction air quantity without reducing the ultimate vacuum. A diffuser is disposed downstream of a nozzle to form a single Laval nozzle. A suction port is provided between the nozzle and the diffuser. The inlet of the diffuser is enlarged in |
| 6782980 |
Controllable damping force hydraulic shock absorber |
August 31, 2004 |
| A piston having a piston rod connected thereto is slidably fitted in a cylinder in which a hydraulic fluid is sealably contained. Extension-stroke and compression-stroke pilot type damping force control mechanisms are provided in the piston. A pilot control valve of the extension-str |
| 6729446 |
Solenoid-operated driving apparatus and damping force control type hydraulic shock absorber usin |
May 4, 2004 |
| A damping force control type hydraulic shock absorber includes a plunger having a small-diameter main body portion slidably guided by a first fixed core made of a magnetic material. The plunger has a large-diameter attracted portion at an end thereof closer to a second fixed core. The |
| 6701235 |
Suspension control system |
March 2, 2004 |
| In a suspension control system, a controller previously stores damping force maps (an ordinary road map, a rough road map, and an extremely rough road map) corresponding to road surface conditions (an ordinary road, a rough road, and an extremely rough road) defined by frequency and |
| 6637838 |
Pneumatic booster |
October 28, 2003 |
| A tandem pneumatic booster includes a front shell having a relatively long cylindrical portion and a rear shell having a relatively short cylindrical portion. The cylindrical portions of the front and rear shells are joined together to form a shell body. An opening edge of a cylindrical |
| 6625981 |
Pneumatic booster and vacuum control valve used therefor |
September 30, 2003 |
| There is disclosed a pneumatic booster having a vacuum chamber connected to an intake pipe of an engine. An air outlet of an ejector is connected to the intake pipe through a vacuum control valve, and an air inlet of the ejector is connected to an air cleaner. A vacuum pick-up port of th |
| 6622832 |
Hydraulic shock absorber |
September 23, 2003 |
| A rod guide is press-filted to an inner periphery of an outer cylinder and to an inner periphery of an inner cylinder. A rod seal is provided at an inner periphery of a cover member for covering the outer cylinder to seal between a piston rod and the cover member. Space between the rod s |
| 6609593 |
Disc brake |
August 26, 2003 |
| A protective boot having a bellows portion, a cylindrical portion, a guide-bore-side mounting portion, a thick-walled portion, a thin-walled portion, a pin-side mounting portion and an air passage groove. In an operation for mounting of the protective boot, the pin-side mounting port |
| 6592345 |
Scroll compressor |
July 15, 2003 |
| There is provided a scroll compressor comprising: a fixed-side member comprising a casing and a fixed scroll member provided in the casing; a driving shaft rotatably provided in the casing; an orbiting scroll member orbitably provided at a distal end of the driving shaft; a suction openi |
| 6578360 |
Master cylinder |
June 17, 2003 |
| A master cylinder including a cylinder having one end open to the outside. A secondary piston guide ring, a sleeve and a primary piston guide ring are adapted to be fitted in this order into the cylinder from the one open end. A piston is slidably fitted in an axial direction of the cyli |
| 6571921 |
Motor-driven disk brake |
June 3, 2003 |
| A motor-driven disk brake is capable of functioning as a parking brake satisfactorily without degrading the brake operating feeling and impairing the function of operating as a motor-driven brake. A stator and rotor of an electric motor are provided in a caliper body floatably supported |
| 6491140 |
Electric disc brake |
December 10, 2002 |
| In an electric disc brake a stator and a rotor of an electric motor are disposed in a caliper body, and a rotation of the rotor is converted into a linear movement by a ball-ramp mechanism. Such linear movement is transmitted to a piston, so that brake pads are urged against a disc rotor |
| 6474454 |
Damping force control type hydraulic shock absorber |
November 5, 2002 |
| A pilot chamber is formed at the back of a disk valve for each of the fluid flow systems for the extension and compression strokes. Damping force in a low piston speed region is controlled with a pressure control valve. The valve opening pressure of the disk valve is controlled by varyin |
| 6434460 |
Suspension control system |
August 13, 2002 |
| By passing the vertical acceleration through a phase adjusting filter and a gain adjusting filter, the phase of the vertical acceleration is advanced by 49 degrees so that the phase difference with respect to the actual relative velocity becomes 180 degrees in the neighborhood of the veh |
| 6430927 |
Master cylinder |
August 13, 2002 |
| A reservoir flange portion is formed in a leg portion of a reservoir so as to protrude beyond a seal member in a direction of a cylinder body and to extend radially outward. An annular retaining member, which has an outer diameter larger than the outer diameter of the reservoir flange po |
| 6427986 |
Air suspension apparatus |
August 6, 2002 |
| An air chamber (53) of a damping force adjusting mechanism (49) disposed in a hydraulic shock absorber (3) of a damping force adjusting type communicates with an air chamber (7) of an air spring through a tubular path (57). A free piston (51) is transferred in accordance with the pre |
| 6412884 |
Solenoid-controlled valve |
July 2, 2002 |
| A solenoid-controlled valve has first and second valve bodies axially movably provided in a bore of a cylinder. A first spring is interposed between an end of th valve and the first valve body, a second spring is interposed between the two valve bodies, and an electromagnetic force g |
| 6412788 |
Suspension control system |
July 2, 2002 |
| A suspension control system includes a shock absorber adapted to be mounted between a vehicle body and a wheel axle and having a variable damping force, an actuator operatively connected to the shock absorber and adapted to adjust the damping force developed by the shock absorber, an |
| 6386087 |
Control booster |
May 14, 2002 |
| The present invention provides a control booster which is capable of appropriately detecting a pedal-operated brake operation during an automatic brake operation. For moving a stop key from a position on a side of a rear-side abutment surface (where a reaction force of a switch acting |
| 6374967 |
Damping force control type hydraulic shock absorber |
April 23, 2002 |
| A damping force control type hydraulic shock absorber capable of generating stable damping force even if the flow rate of hydraulic fluid changes sharply. Hydraulic fluid chambers at the respective ends of valve members are cut off from the downstream ports of extension and compression |
| 6374958 |
Motor-driven disk brake |
April 23, 2002 |
| A motor-driven disk brake has a first brake pad and a second brake pad disposed at opposite sides of a disk rotor, a piston disposed so as to face the first brake pad, a claw portion extending over the disk rotor and facing the second brake pad, and an electric motor disposed in the |
| 6371262 |
Damping force control type hydraulic shock absorber |
April 16, 2002 |
| The flow of a hydraulic fluid, which occurs under a sliding movement of a piston in a cylinder, is directly controlled by virtue of an extension-stroke pressure control valve and a compression-stroke pressure control valve. At the same time, the pressure in a back pressure chamber is |
| 6349806 |
Cylinder apparatus for a brake fluid pressure control system |
February 26, 2002 |
| In a cylinder body of a cylinder apparatus of the present invention for a brake fluid pressure control system, primary and secondary pistons having different pressure-receiving areas are provided. A pressure chamber between the primary and secondary pistons is communicated with a reservo |
| 6332622 |
Suspension apparatus having two interconnected shock absorbers |
December 25, 2001 |
| The pilot suspension apparatus of the present invention is capable of biasing a damping valve in a direction for closing the valve, due to application of a pilot pressure. The suspension apparatus comprises at least one pair of hydraulic shock absorbers which are capable of controlli |
| 6329071 |
Chrome plated parts and chrome plating method |
December 11, 2001 |
| Using a chrome plating bath containing organic sulfonic acid, plating is conducted by application of a pulse current to thereby form a crack-free lower chrome layer on a steel substrate. The lower chrome layer has a compressive residual stress of 100 MPa or more and a crystal grain size |
| 6325182 |
Motor-driven brake system |
December 4, 2001 |
| The present invention provides a motor driven brake system for generating and releasing braking forces by reciprocal movement of a pair of pads disposed at opposite sides of a disk having an axis. The system comprises a single electric motor, an output portion adapted to be rotated by th |
| 6322058 |
Air suspension apparatus |
November 27, 2001 |
| A pressure-receiving chamber in an actuator and an air chamber of an air spring for displacing a shutter in a piston rod communicate with other through an air passage provided in the piston rod. The air passage includes a small-diameter hole of a rod insertion hole in the piston rod |
| 6321887 |
Suspension control apparatus |
November 27, 2001 |
| When a hydraulic cylinder apparatus operates in a direction such that the same damping force as a skyhook damping force cannot be produced, a command signal is applied so as to operate an active system (a fluid supply/discharge valve) and supply or discharge a fluid relative to the h |
| 6311492 |
Master cylinder |
November 6, 2001 |
| A master cylinder realizes a stroke simulator function without the need to change the structure around a brake pedal and without impairing brake pedal feel, is easy to form by machining, and also facilitates a hydraulic fluid charging and air bleeding operation. A secondary piston is spl |
| 6302497 |
Vehicle brake control system |
October 16, 2001 |
| A vehicle brake control system includes a brake booster divided into a constant pressure chamber permanently communicating with a vacuum source, and a variable pressure chamber selectively communicating with the constant pressure chamber. The brake booster includes a first servo mech |
| 6302248 |
Damping force control type hydraulic shock absorber |
October 16, 2001 |
| The flow of a hydraulic fluid between connecting ports caused by sliding movement of a piston in a cylinder is controlled by a fixed orifice and the flow path area determined by ports that is varied by a spool, thereby directly controlling orifice characteristics. At the same time, the |
| 6290034 |
Suspension control system |
September 18, 2001 |
| The disclosed suspension control system includes actuators for adjusting damping forces of front and rear variable-damping force shock absorbers. Also provided are front and rear vertical acceleration detectors. Usual control for the actuators are performed on the basis of the vertical |
| 6283259 |
Hydraulic shock absorber |
September 4, 2001 |
| A hydraulic shock absorber includes an inner cylinder filled with a working oil, an outer cylinder, and a reservoir defined between the inner and outer cylinders. A piston is slidably disposed within the inner cylinder so as to divide the interior of the inner cylinder into an upper cyli |
| 6272858 |
Master cylinder |
August 14, 2001 |
| A master cylinder includes a cylinder, a piston slidably provided in the cylinder, an annular cup seal held on an inner circumferential surface of the cylinder, and a relief port formed in the piston. The piston and the cylinder define a pressure chamber for generating fluid pressure in |
| 6270064 |
Hydraulic shock absorber |
August 7, 2001 |
| In a self-pumping type hydraulic shock absorber, an outer cylinder is provided to cover an outer circumferential surface of a cylinder. The outer cylinder is formed to have a small-diameter portion, a mid-diameter portion and a large-diameter portion. A reservoir is formed between the |
| 6269918 |
Damping force control type hydraulic shock absorber |
August 7, 2001 |
| The flow of a hydraulic fluid caused by sliding movement of a piston in a cylinder is controlled by a disk valve and extension- and contraction-side main valves, thereby generating damping force. By controlling the valve opening pressures of the disk valve as a pressure control valve wit |
| 6269732 |
Pneumatic booster |
August 7, 2001 |
| A pneumatic booster includes a valve mechanism for introducing atmospheric air into a variable-pressure chamber in accordance with the movement of a plunger, propelling a power piston due to differential pressure generated between the variable-pressure chamber and a constant-pressure cha |
| 6267572 |
Scroll fluid machine having scroll members at each end of a rotating hollow shaft |
July 31, 2001 |
| A scroll fluid machine requiring no crank shaft to orbitably support an orbiting scroll member and capable of being reduced in overall size in the axial direction. In a casing, two fixed scroll members are provided on the axis of the casing, and an electric motor is provided between the |
| 6250436 |
Motor-driven brake apparatus |
June 26, 2001 |
| A motor-driven brake apparatus has a motor and a ball screw that converts rotational motion of the motor into rectilinear motion of a screw member. A position detector detects a stroke position of the screw member. A controller controls the motor on the basis of the result of detection b |
| 6247561 |
Disk brake |
June 19, 2001 |
| In the disk brake, mounting portions of the caliper of a disk brake extending toward the entrance side and the exit side with respect to the rotation direction of the disk. Relative to the rotation direction, the length of the mounting portion on the entrance side is greater than that |
| 6231321 |
Air compressor |
May 15, 2001 |
| This invention pertains to an air compressor having a cylinder head with an air supply passage communicating with a discharge hole. First and second exhaust passages are arranged in parallel between the air supply passage and an exhaust port. A pilot-operated switching valve is located a |
| 6223867 |
Disk brake |
May 1, 2001 |
| A disk pass portion for receiving a part of a disk is provided between a cylinder portion and an outer claw portion of a caliper body at the inner peripheral side of a bridge portion of the caliper body. A pair of mounting portions extend arcuately from both sides of the bridge portion |
| 6210137 |
Scroll fluid machine |
April 3, 2001 |
| A scroll fluid machine having a lubrication pump provided between sliding contact surfaces of an orbiting scroll member and a thrust bearing in a casing. The pump has an orbiting member accommodating recess provided in the sliding contact surface of the thrust bearing. An orbiting member |
