Abstract

The invention relates to a rack bar supporting device, which is a device that supports the rack bar of a vehicle steering apparatus toward the pinion shaft, including a rack bearing and a biasing assembly. The biasing assembly has an adjustment plug, an adjustment assembly, and a support plate assembly. The adjustment assembly has an adjustment member and a first biasing member. The support plate assembly has a first support plate, a second support plate, a second biasing member exerting a force such that the first support plate is pushed along the biasing axis with respect to the second support plate, and a coupling structure coupling the first support plate to the second support plate such that the movement of the second plate is restricted in the direction opposite to that of the rack bearing.

IPC Classes  ?

• B62D 3/12 - Steering gears mechanical of rack-and-pinion type
• B62D 5/22 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type

Abstract

A motor coupling connects a motor output shaft and a worm shaft of an electric power steering device, and comprises an outer bushing, an inner bushing arranged on the inner side of the outer bushing, and a rubber layer formed between the outer bushing and the inner bushing, wherein a groove is formed in the outer bushing and/or the inner bushing, a lug is protruded from the other bushing to be inserted into the groove, and the rubber layer is formed to fill a space between the groove and the lug while the lug is inserted and arranged in the groove.

IPC Classes  ?

• B62D 3/04 - Steering gears mechanical of worm type
• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

Abstract

A rack bar support device supports a rack bar of a steering device of a vehicle toward a pinion shaft, and comprises: a rack bearing arranged opposite to a pinion such that the rack bearing is brought into contact with the rack bar; and a biasing assembly which provides a force for pushing the rack bearing toward a rack along a biasing axis such that the rack bearing pushes the rack bar and then the rack bar is coupled to the pinion shaft. The biasing assembly includes an adjustment plug, an adjustment assembly and a support plate assembly. The support plate assembly includes a support plate arranged to be movable between the adjustment member and the rack bearing, by being adjusted by the adjustment member. A gap is formed between the support plate and the rack bearing.

IPC Classes  ?

• B62D 3/12 - Steering gears mechanical of rack-and-pinion type
• B62D 3/02 - Steering gears mechanical

Abstract

The present invention relates to a swing link for a scroll compressor, and more particularly, to a swing link for a scroll compressor having improved abrasion resistance, corrosion resistance, and durability, and to a method for treating the surface of the swing link. The method for treating the surface of the swing link for the scroll compressor, which involves treating the outer surface of the swing link for the scroll compressor having a cylindrical unit and a balance weight, comprises: a stress-removing step of removing internal stresses of the swing link; a normalizing step of smoothing the internal organization of the swing link; and a low-temperature nitrocarburizing step of leaving the swing link in a gaseous nitrocarburizing atmosphere in a nitrocarburizing furnace for a predetermined period of time and then cooling the swing link in an inactive nitrification furnace.

IPC Classes  ?

• C23C 8/48 - Nitriding
• C23C 8/02 - Pretreatment of the material to be coated

Abstract

The present invention relates to a constant-velocity joint assembly. The constant-velocity joint assembly comprises: a first and a second shaft portion, each of which has a projecting portion; a double yoke portion in which a guide hole is defined in an axial direction, wherein the first and the second shaft portions are each fastened so as to be rotatable upward and downward about an axis at either side of the guide hole; and a guide unit mounted on the guide hole, guiding the projecting portions, and rotating along the inner periphery of the guide hole when the first and the second shaft portions rotate. The first and the second shaft portions comprise: a spider; and a yoke block. The spider comprises: spider bodies, each having a spider hole defined therein; lateral leg portions projecting in the left and right directions from the spider bodies, respectively; and vertical leg portions projecting in the upward and downward directions from the spider bodies, respectively, and fastened to the double yoke portion. The yoke block comprises: a shaft having the projecting portions; a block body having block holes defined therein, the projecting portions passing through the block holes, and being connected to the shaft; and lateral fastening members projecting in an axial direction from the left and right sides of the block body, respectively, each having fastening holes defined therein for rotatably fastening the lateral leg portions thereto.

IPC Classes  ?

• F16D 3/26 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected
• F16D 3/30 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected in which the coupling is specially adapted to constant velocity-ratio
• F16D 3/32 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected in which the coupling is specially adapted to constant velocity-ratio by the provision of two intermediate members each having two relatively- perpendicular trunnions or bearings
• F16D 3/33 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected in which the coupling is specially adapted to constant velocity-ratio by the provision of two intermediate members each having two relatively- perpendicular trunnions or bearings with ball or roller bearings

Abstract

A transmission-type power steering device comprises: a motor; a worm shaft provided with a worm gear, and connected to an output axis to integratingly rotate with the output axis of the motor; a worm wheel coupled to a steering shaft, and autogerous-welded on the worm gear; a support bearing placed on the close side to the motor with the worm gear of the worm shaft as the center, so as to be coupled to the worm shaft; a tilt bearing assembly placed on the far side from the motor with the worm gear of the worm shaft as the center, so as to be coupled to the worm shaft; and a support bearing damping mechanism for providing damping power to the support bearing and the worm shaft.

IPC Classes  ?

• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• B62D 5/24 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for worm type

Abstract

A transmission-type power steering device comprises: a motor; a worm shaft provided with a worm gear, and connected to an output axis to integratingly rotate with the output axis of the motor; a worm wheel coupled to a steering shaft, and autogerous-welded on the worm gear; a support bearing placed on the close side to the motor with the worm gear of the worm shaft as the center, so as to be coupled to the worm shaft; a tilt bearing assembly placed on the far side from the motor with the worm gear of the worm shaft as the center, so as to be coupled to the worm shaft; and a tilting mechanism applying strength to the tilt bearing assembly so that the worm shaft can be tilted in the direction of being pushed towards the worm wheel.

IPC Classes  ?

• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• B62D 5/24 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for worm type

Abstract

The present invention relates to an oil separation structure for a scroll type compressor. In the oil separation structure, a receiving part is formed in a back surface of a fixed scroll including a circular end plate and a spiral element protruding from a front surface of the circular end plate, and an oil separator for separating oil from compressed refrigerant within the receiving part. Also, a rear housing is installed on a back surface of the fixed scroll, an opening is formed in one end of the receiving part, and a closed part is formed on the other end of the receiving part. Also, a refrigerant introduction hole is formed in one side of a sidewall of the receiving part.

IPC Classes  ?

• F04C 29/02 - LubricationLubricant separation
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

The present invention relates to a vehicle intermediate shaft, having a clearance reduction structure. The vehicle intermediate shaft includes: a tubular shaft which is opened at the front end thereof and formed with a hollow portion in the longitudinal direction; a solid shaft formed in the shape of a rod and inserted into the hollow portion; and a sliding member mounted between the inner surface of the tubular shaft and the outer surface of the solid shaft. The vehicle intermediate shaft further includes a preload section for pressing the outer surface of the tubular shaft. The preload section includes a pressing member for surrounding the outer surface of the tubular shaft, and a bushing for pressing and surrounding the outer surface of the pressing member. According to the present invention, it is possible to reduce clearances and lashes generated among the solid shaft, the slide member and the tubular shaft, and to prevent from creating noise. In addition, it is possible to improve the riding and handling performances of a vehicle and responsibility of a vehicle. Furthermore, production and quality control costs may be reduced by shortening process.

IPC Classes  ?

• B62D 1/16 - Steering columns
• B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible

Abstract

The present invention relates to a plate heat exchanger for increasing heat exchange efficiency via improvement in the flowability of fluid, promotion of turbulence and the like. The plate heat exchanger according to the present invention includes a plurality of heat exchange tubes stacked in the vertical direction. Each of the heat exchange tubes is formed with upper and lower plates coupled with each other and has an internal fluid channel through which internal fluid passes. Outer fluid channels are formed between the plurality of heat exchange tubes for passing outer fluid. The upper plate is formed with a wave-shaped pattern comprising a plurality of protuberances and a plurality of indentations on the top surface thereof. The lower plate is formed with a wave-shaped pattern comprising a plurality of protuberances and a plurality of indentations on the bottom surface thereof. Each of the heat exchange tubes has an inlet path and an outlet path separated from each other on both sides. The upper plate has upper flanges protruded from the upper portions of the inlet path and the outlet path, and the lower plate has lower flanges protruded from the lower portions of the inlet path and the outlet path. The upper flanges and the lower flanges are connected by insertion to each other, and first and second flat portions are respectively formed in the peripheral areas of the upper flanges of the upper plate and in the peripheral areas of the lower flanges of the lower plate.

IPC Classes  ?

• F28D 9/02 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the heat-exchange media travelling at an angle to one another
• F28F 3/02 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element

Abstract

The present invention relates to a plate heat exchanger for largely improving heat exchange efficiency by improving the flow of fluids. The plate heat exchanger of the present invention comprises a plurality of heat exchange tubes stacked in the vertical direction, each formed by coupling upper and lower plates with each other, and each having a 1st flow channel in which a 1st fluid flows, and a 2nd flow channel formed between the heat exchange tubes for the flow of a 2nd fluid, wherein each of the heat exchange tubes has an inlet path and an outlet path separated from each other on both ends, the upper plate has an upper flange protruded from the upper parts of the inlet path and the outlet path, the lower plate has a lower flange protruded from the lower parts of the inlet path and the outlet path, a plurality of upper flow grooves are extended in an oblique direction on the bottom surface of the upper plate, a plurality of lower flow grooves are extended in an oblique direction on the top surface of the lower plate, the upper plate and the lower plate form the first flow channel by being coupled with each other in such a manner that the upper flow grooves and the lower flow grooves intersect each other, and in the periphery of the inlet path and the outlet path of the upper plate and in the periphery of the inlet path and the outlet path of the lower plate are provided structures for guiding the flow of the fluids in two or more directions.

IPC Classes  ?

• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28F 3/02 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations

Abstract

This invention relates to a brake force booster for automotive vehicles, having a panic braking function which can increase output during an emergency braking situation. The brake force booster consists of a front and a rear housing which are bonded together to create an internal pressure chamber; a diaphragm which compartmentalises said pressure chamber; a power piston forming a penetration hole, through said diaphragm and installed into said rear housing; a valve seat which contains a longitudinally formed penetration hole and is installed to move forward/backward and give support to said power piston; a seal which seals between the inner circumferential surface of said power piston and the outer circumferential surface of said valve seat; a push rod which receives the operational power of the brake pedal and is elastically supported rearward of said power piston; a control valve which is installed to move forward/backward in said penetration hole within said power piston and is supported elastically toward the front of said push rod; an air valve which is installed in said penetration hole of said valve seat and moves forward/backward in said power piston and which is supported elastically toward the front of said push rod so that it can be operated to control the air flow toward said diaphragm according to the contact of said control valve; and a stopper which is attached to said power piston and limits the rearward movement of said valve seat. Said air valve has a protrusion protruded radially outward and the end of said valve seat is coupled to said stopper when said air valve is closed. The first leg of multiple stratiform legs which form the control, touches said protrusion. The first leg of said multiple is formed in such a way that that said end can be selectively separated from said stopper, since the leg can be selectively separated radially outward by the protrusion of said air valve, which depends on the forward movement speed of said air valve. When the end of said first leg is separated from said stopper, said valve seat is provided with a reaction control mechanism causing it to stop after moving a pre-determined distance against said stopper.

IPC Classes  ?

• B60T 13/52 - Vacuum systems indirect, i.e. vacuum booster units

Abstract

The present invention relates to a steering gear for an automobile. In the steering gear, a rack bearing, a plug, and an elastic member are inserted in a rack housing in the axial direction of a rack bar. The rack bar is meshed with a pinion gear and supported in the axial direction thereof, so the structure of the rack housing can be simplified and accordingly, material cost can be decreased and the pinion gear and rack bar are stably meshed. Therefore, noise can be reduced through removal of clearance between the rack bearing and rack housing. In addition, in relation to the rack housing, the present invention is configured by the rack bearing whereof the assembly center does not match with the center of the rack bar.

IPC Classes  ?

• B62D 5/22 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type

Abstract

The disclosed vehicular air conditioner converts blowing air to cool air by heat-exchange between a coolant and the blowing air and then discharges it to the interior of the vehicle. The coolant passes through a condenser, an expansion unit, and an evaporator in order, as a result of driving of a compressor, and then circulates through the compressor again. The blowing air is blown past the surface of the evaporator by a blower. In a vehicular seat and/or backrest, a tubular sub-evaporator is embedded, whereof one side is connected to the condenser and the other side is connected to the compressor. A sub-expansion unit converting the coolant to a low temperature and pressure can be placed between the sub-evaporator and evaporator. Since the sub-evaporator is installed in a vehicular seat and/or backrest, the present invention enables vehicular interior cooling as well as cooling the driver’s seat and/or backrest, thereby a driver can drive comfortably.

IPC Classes  ?

• B60H 1/00 - Heating, cooling or ventilating devices
• B60H 1/32 - Cooling devices
• B60N 2/56 - Heating or ventilating devices

Abstract

The present invention concerns an oil cooler for a transmission capable of improving efficiency of heat exchange and assembly. According to the present invention, the oil cooler for a transmission comprises plural heat exchange units which are vertically stacked. In each heat exchange unit, the edges of an upper plate and lower plate are coupled with each other. Plural grooves are formed in the portion in which the upper plate and lower plate face each other. The grooves formed on the upper plate and lower plate intersect each other, thereby forming an oil path with an intersecting structure. In both ends of each heat exchange unit, an inlet and an outlet where the oil flows in and out are respectively formed, and each oil path of the heat exchange units is connected to another oil path through the inlet and outlet. The upper and lower plates respectively comprise an upper flange protruding upward from the top of the inlet and outlet and a lower flange protruding downward from the bottom of the inlet and outlet. The nearby upper and lower flanges of the heat exchange unit are inserted in and coupled with each other.

IPC Classes  ?

• F16H 57/04 - Features relating to lubrication or cooling
• F16H 57/00 - General details of gearing

Abstract

The present invention relates to a master cylinder for a vehicle, for generating hydraulic pressure in the hydraulic brake device of the vehicle. The master cylinder for a vehicle according to the present invention comprises: a housing formed with a liquid pressure chamber in such a way as to be able to accommodate oil on the inside; a piston which is inserted into the liquid pressure chamber, and which adjusts the pressure of the liquid pressure chamber by means of a reciprocating motion, and which also has a stepped level difference formed in its front-end part; a plurality of inflow ports for supplying the oil to the liquid pressure chamber, which are provided in the housing; and a chamber for opening and closing a pathway for oil movement in accordance with whether or not it is in contact with the piston, which said chamber is secured to a groove formed on the inner surface of the housing with a clearance of a predetermined interval from the inflow ports. The oil moves through the space formed between the piston and the chamber and follows the stepped outer circumferential surface of the piston into the liquid pressure chamber, while the space between the outer circumferential surface of the piston and the chamber is supplied by an oil-movement pathway. The present invention makes it possible to reduce processing costs and makes it possible to prevent chamber damage caused by pressure from liquid flowing backwards during disengagement from braking following a TCS or ESC operation.

IPC Classes  ?

• B60T 11/16 - Master control, e.g. master cylinders
• B60T 11/236 - Piston sealing arrangements

Abstract

A booster of a brake for vehicles is disclosed. The booster of the present invention includes a boosting ratio control device (10). The boosting ratio control device comprises an air valve (11), which has a hollow cylinder part (11a) and a groove (11b) formed in an end of the hollow cylinder part, and a plunger (13), which is provided in the hollow cylinder part such that a rear end thereof is spaced apart from the inner surface of the air valve (11) by a distance (a) and a front end thereof is spaced apart from a reaction disk (80) by a distance (b). A disk-shaped support part is provided around the outer surface of the plunger. The boosting ratio control device further comprises an elastic spring, which is provided between the air valve and the disk-shaped support part, and a C-ring, which is seated into the groove of the air valve.

IPC Classes  ?

• B60T 13/57 - Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
• B60T 13/52 - Vacuum systems indirect, i.e. vacuum booster units

Abstract

The present invention provides a method of manufacturing a stub shaft. In the method of the present invention, a stub shaft (100) is made of a solid bar (101) and is manufactured by a forming method, so that the structure of the material becomes more stable, thus making up for the conventional weak point of torsional strength, thereby improving the quality of the product. Furthermore, the present invention can reduce the cost of manufacturing the stub shaft, thus increasing price competitiveness. The method of the present invention comprises the steps of holding the medial portion of the solid bar (101) in a support mold (20), and processing one end or the opposite ends of the solid bar through a forming process using a forming machine.

IPC Classes  ?

• B21D 53/86 - Making other particular articles other parts for bicycles or motorcycles

Abstract

There are provided an automobile heat exchanger having a header formed integrally with a tank and a method of manufacturing the same, and, more particularly, an automobile heat exchanger comprising a top header pipe unit formed of a pair of header pipes and a bottom header pipe unit formed of a pair of header pipes, the top header pipe unit to be connected to top ends of tubes and the bottom header pipe unit to be connected to bottom ends thereof, and the header pipe including a header formed integrally with a tank. In the heat exchanger, each header pipe is manufactured in a welded type or folded type so that the header is formed integrally with the tank. Accordingly, unlike a conventional heat exchanger, the present invention does not require any separate metal mold or assembling means for assembling the header and tank. Con¬ sequently, the manufacturing cost is reduced and the manufacturing time is shortened by simplifying the processes. Furthermore, the pressure strength in the header-tank increases and the risk of leaking a heat exchanging medium decreases, to increase the efficiency of heat exchange. Further, the width wise sectional shapes of the top and bottom header pipe units are controlled so that the condensate generated on the surface of a plurality of the header pipes is easily discharged.

IPC Classes  ?

• F28F 9/00 - CasingsHeader boxesAuxiliary supports for elementsAuxiliary members within casings

Abstract

A gasket-integrated tank is formed in a heat exchanger, such as a radiator, which cools circulating hot cooling water in order to cool an engine of a vehicle, or an intercooler, which cools compressed air and feeds the cooled air to the engine, in which a gasket made of LSR is integrally formed on the tank, so that a cap made of aluminum can be easily provided on the tank and the reliability of coupling of the heat exchanger can be improved. A method of manufacturing the gasket-integrated tank includes steps of : injection-molding the tank of the heat exchanger; seating the tank, molded in the injection-molding step, into a lower mold; seating an upper mold, having a gasket-forming recess, on a top face of the molded tank; feeding a liquid silicone, including a main material and a curing material, into a molding space; and curing the liquid silicone.

IPC Classes  ?

• F28F 9/02 - Header boxesEnd plates

Abstract

There is provided a heat exchanger of a vehicle including a plurality of tubes spaced apart from each other by a predetermined distance and through which a heat-exchanging fluid flows, an upper header pipe unit coupled and communicated with the upper ends of the tubes, and a lower header pipe unit coupled and communicated with the lower ends of the tubes, and in which a header pipe is made by making and drawing a plate member containing a clad sheet into a pipe so that it does not need to separate and assemble a header from and with a tank and the clad sheet is not separated from the header pipe during transferring, a pair of header pipes have flat surfaces to bring into surface contact with each other such that a plurality of independent header pipes are assembled to closely contact each other, a plurality of same type and same number of communication devices are configured such that the heat-exchanging fluid flows therethrough, and an inlet and outlet end cap, an end cap, and separator are used such that the header pipes are tightly and securely assembled, and a method of manufacturing the heat exchanger.

IPC Classes  ?

• F28F 9/02 - Header boxesEnd plates