Lubrication apparatus of high pressure pump for common rail system

a technology of high pressure pump and lubrication apparatus, which is applied in the direction of auxilary lubrication, machines/engines, liquid fuel engines, etc., can solve the problems of high pressure pump b>10/b> being broken due to friction, severe wear, and the restriction portion
US20140165957A1Inactive Publication Date: 2014-06-19HYUNDAI MOTOR CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HYUNDAI MOTOR CO LTD
Publication Date
2014-06-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A lubrication apparatus of a high pressure pump for a common rail system can improve lubrication performance for a friction portion M1 between a roller 12 and a shoe by supplying a large amount of lubricating fuel, which is supplied from a low pressure pump 24, to the friction portion M1 for a short time.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority of Korean Patent Application Number 10-2012-0147886 filed Dec. 17, 2012, the entire contents of which application is incorporated herein for all purposes by this reference.BACKGROUND OF INVENTION

[0002] 1. Field of Invention

[0003] The present invention relates to a lubrication apparatus of a high pressure pump for a common rail system, and more particularly, a lubrication apparatus of a high pressure pump for a common rail system which can improve lubricating performance of a friction portion where a roller and a shoe are in contact.

[0004] 2. Description of Related Art

[0005] A high pressure pump 10 used in common rail systems, as shown in FIGS. 1 and 2, includes a pump housing 11, a roller 12, a shoe 13, and a plunger 14 wherein a shaft chamber 11a, a roller chamber 11b, and spring chamber 11c are connected in the pump housing 11.

[0006] A camshaft 21 with a cam 21a is rotatably disposed in the shaft chambe...

Claims

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