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Valve deactivator assembly

A release, component technology, applied in valve detailing, valve assembly, valve actuation, etc., to solve problems such as wear, concentration, small load-bearing locking surfaces, etc.

Inactive Publication Date: 2005-10-19
STANADYNE OPERATING CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These latching components have a small load-bearing latching surface, resulting in force concentrations and wear problems

Method used

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  • Valve deactivator assembly
  • Valve deactivator assembly
  • Valve deactivator assembly

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] Now, referring to Figures 1-8, a preferred embodiment of the valve release assembly will be described. The main components of the valve release assembly 10 according to the technical solution of the present invention are the outer body part 12, the inner body part 14 and the locking assembly 16. The generally cylindrical inner body part 14 is slidably received in a longitudinal hole 18 defined by the outer body part 12. In the illustrated embodiment, the inner body member supports a hydraulic clearance adjustment device ("HLA") generally indicated by the number 20, which may be of a type well known to those skilled in the art. HLA20 is not an essential feature of the present invention, and its function will not be further explained here. The upper end of the HLA is a ball plug 22, which is usually accommodated in a hemispherical socket of a rocker arm (not shown in the figure). The ball plug 22 provides the end fulcrum of the rocker arm.

[0022] The locking assembly 16 is ...

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PUM

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Abstract

A valve deactivator assembly according to the present invention includes an inner body member that is slidably disposed in a longitudinal bore defined by an outer body member. Two diametrically opposed pistons are positioned in a transverse bore also defined by the outer body member. A pair of substantially identical latch members are outwardly biased against an inner end of the pistons by a compressed spring. The latch members are generally semi-cylindrical in shape and include flat truncated semi-circular upper and lower surfaces. The pistons apply radially inward force in response to engine oil pressure to adjacent latch member to move the latch member against the bias of the compressed spring to an unlatched position. The periphery of each latch member lower surface provides arcuate shoulder portions that engage angularly separated portions of a latching surface inside the outer body member.

Description

Technical field [0001] The present invention relates to an improved valve mechanism for an internal combustion engine, in particular to a valve release assembly used for it, and more to a valve release of the locking device type using hydraulic actuation. Background technique [0002] It is well known that under certain engine load conditions, by releasing intake and / or exhaust valves for specific cylinders, the overall fuel efficiency in a multiple-cylinder internal combustion engine can be increased. A known method of providing selective valve release in a push rod engine is to install the lifting rod of the valve to be released so that the lifting rod cannot transmit the cyclic motion of the engine cam to the associated push rod and valve. Reciprocating device. Typically, the release lift rod in the push rod engine includes a coaxial inner and outer parts, which respectively react mechanically to the push rod and the cam protrusion, and can be selectively locked with each othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/04F01L1/24F01L1/245F01L1/34F01L1/46F01L13/00F02D13/02F02D13/06
CPCF01L1/2405F01L13/0005
Inventor 埃里克·W·贡弗
Owner STANADYNE OPERATING CO LLC