VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINE

Title:

VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP2018084170

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To restrict a weight and a dimension of a variable compression ratio internal combustion engine while restricting inclination of a cylinder block to an engine height direction in moving the cylinder block.SOLUTION: A variable compression ratio mechanism V capable of changing a mechanical compression ratio by relatively moving a cylinder block 3 to a crank case 2 in an engine height direction LH, is disposed only at one side A of a reference surface RP. One side A of the reference surface RP is provided with a first apex-side supporting member 31t and a first bottom-side supporting member 31b, and another side B of the reference surface RP is provided with a second apex-side supporting member 32t and a second bottom-side supporting member 32b. The first apex-side supporting member is retained so that it cannot move toward the cylinder block. An energization member 52b for energizing at least the second bottom-side supporting member is composed of a hydraulic lash adjuster.SELECTED DRAWING: Figure 1

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Inventors:

WATANABE MASAKI

Application Number:

JP2016226775A

Publication Date:

May 31, 2018

Filing Date:

November 22, 2016

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

F02D15/04; F02B75/04; F02F1/18; F02F7/00

Attorney, Agent or Firm:

Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Yuichi Morimoto
Koichi Ito

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