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Cam follower roller device with integrated sealing elements, notably for a fuel injection pump

A technology for fuel injection pumps and sealing components, which can be used in fuel injection devices, special fuel injection devices, fuel injection pumps, etc., and can solve problems such as lack of lubrication

Inactive Publication Date: 2015-11-25
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for this unit, there will be a period of time without lubrication

Method used

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  • Cam follower roller device with integrated sealing elements, notably for a fuel injection pump
  • Cam follower roller device with integrated sealing elements, notably for a fuel injection pump
  • Cam follower roller device with integrated sealing elements, notably for a fuel injection pump

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 and Figure 1a A first embodiment of a mechanical cam follower roller arrangement 10 is shown, which may be used, for example, in a fuel injection pump for an internal combustion engine. The device 10 may be used in other applications, for example in a rocker system suitable for controlling the valves of an internal combustion engine.

[0027] The device 10 comprises: an outer housing or tappet body 12; a pin or shaft 14 extending along the axis X-X and mounted on the housing; and a roller 16 supported on the shaft 14 and adapted to press against the camshaft of the internal combustion engine. Synchronized cams (not shown) or cams pressed directly against the camshaft.

[0028] The outer casing 12 has a tubular form and may be made from stamped sheet metal. The outer housing 12 includes a first end 18 and a second end 20 opposite the first end 18 .

[0029] The first end 18 includes an outwardly opening recess 18a designed to engage a pump piston (not shown...

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PUM

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Abstract

Cam follower roller device, notably for fuel injection pump of an internal combustion engine, comprises a casing (12), a shaft (14) mounted on the casing (12) and a roller (16) rotatably mounted on said shaft (14). The cam follower device comprises at least one sealing element (30) arranged radially between the shaft (14) and the roller (16) and axially between the roller (16) and the casing (12).

Description

technical field [0001] The present invention relates to the field of mechanical cam follower roller arrangements for actuating reciprocating motion, for automotive or industrial applications such as fuel injection pumps, internal combustion engine valve timing systems, valve train cam followers or rocker arm bearings. Background technique [0002] An advantageous application of the invention is the use of cam-follower arrangements in fuel injection pumps for internal combustion engines, in particular motor vehicles. [0003] Such cam-follower roller arrangements typically include an outer sleeve or housing and a roller mounted on said housing and adapted to cooperate with a cam synchronized with the camshaft of an internal combustion engine so that rotation of the camshaft causes abutment against the The periodic displacement of the piston of the pump in contact with the housing of the device. Patent application US2008 / 0190237 discloses such a conventional mechanical cam fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/06F01L1/46
CPCF16H53/06F01L1/14F01L1/46F01L2105/00F01L2105/02F02M59/102F02M59/44Y10T74/2107F04B1/0408F04B1/0426F02M2200/16F01L2305/02F01L2305/00
Inventor J.马福奇B.豪维斯普雷F.钱帕洛
Owner AB SKF