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South Korea

Patent
Kefico Corporation and Hyundai Motor Company | Date: 2012-11-13

An injector filter of an injector may include a filter frame being seated on an inner side surface of the housing and having a bush coupling portion at an upper portion thereof, wherein a rotation prevention groove may be concavely formed on the bush coupling portion, nets coupled to the filter frame and having a mesh form to filter out the foreign matter contained in the fuel, and a bush coupled to the bush coupling portion and having a rotation prevention protrusion which protrudes from an inner side surface of the bush and may be inserted into the rotation prevention groove of the filter frame.


A method of controlling fuel injection of a bi-fuel vehicle running on gasoline and liquefied petroleum gas (LPG), and more particularly, a method of controlling fuel injection of a bi-fuel vehicle having an engine running on gasoline and LPG, capable of simultaneously controlling supply systems and injectors of fuels and switching the fuels in response to a fuel switch request based on an injection ratio and an injection time of each fuel is provided. Thus, fuels may be switched stably and efficiently, output reduction and exhaust gas increase due to deviation of an air-fuel ratio while switching fuels may be prevented, and fuels may be appropriately switched. Furthermore, mechanical stress generated while switching fuels may be minimized and stable driving may be provided. Accordingly, the reliability of a bi-fuel vehicle simultaneously using gasoline and LPG may be improved and the competitiveness of bi-fuel vehicle products may also be improved.


Patent
Kefico Corporation | Date: 2011-05-25

The present invention relates to a hydraulic solenoid valve for an automatic transmission of a vehicle, which moves an armature and a spool upward or downward by means of magnetic force so as to open/shut an inlet and an outlet, characterized in that an air gap is formed between a circumferential surface of the armature and a circumferential inner surface of the movable guide body, thereby reducing mechanical processing error or assembly error, and enhancing hydraulic performance and gear shifting performance.


Patent
Hyundai Motor Company, Kefico Corporation and Kia Motors | Date: 2012-05-14

A chamber structure for a vehicle may include a housing, a chamber formed inside the housing and into which a blow-by gas flows, and a cooling water path which may be formed inside the housing around the chamber and through which a preheated cooling water passes.


Patent
Kefico Corporation | Date: 2013-04-25

A solenoid valve with the magnet filter includes a flange having a guide hollow part formed therein, in which at least one port that communicates with the guide hollow part is formed on an outer circumferential surface of the flange to be spaced apart from each other by a predetermined distance in a lengthwise direction; a spool that is slidably installed in the guide hollow part; and a driving unit that is installed at a lower end of the spool and allows the spool to slide along the guide hollow part by a supply of current, wherein a bypass flow passage is formed in the driving unit so that bypass of oil or air is performed, and a magnet filter is installed at one side of the bypass flow passage so as to prevent introduction of metallic foreign substances.

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