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FR2365697A1 Expired / Lapsed FR ⏱️ 0.0 years remaining

IMPROVEMENTS TO PISTONS OF INTERNAL COMBUSTION ENGINES

Assignee: Lister & Co Ltd R A
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Filing: 1977-02-01
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Granted: —
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Expires: 1997-02-01
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Abstract

Abstract Translated from French L'invention concerne un piston ayant une chambre de combustion formée dans sa tête, pour un moteur à combustion interne. La chambre de combustion a un orifice d'admission 12 à la surface supérieure la de la tête, un fond plat 2 et une paroi latérale qui comporte une pluralité d'évidements concaves qui se coupent pour former des arêtes 4 dirigées vers une zone centrale de la chambre de combustion. Les arêtes ont des parties courbes 4a concaves, qui s'étendent vers le haut à partir du fond plat et des parties inclinées 4b qui s'étendent entre les parties courbes et la surface supérieure la de la tête le long de la surface d'un cône imaginaire 5 ayant son sommet au-dessus de la surface supérieure. Cette chambre de combustion permet une réduction de la température de fonctionnement d'une buse de vaporisation pour un combustible liquide et rend plus efficace l'utilisation de la turbulence dans la chambre de combustion. Disclosed is a piston having a combustion chamber formed in its head, for an internal combustion engine. The combustion chamber has an inlet 12 at the upper surface 1a of the head, a flat bottom 2 and a side wall which has a plurality of concave recesses which intersect to form ridges 4 directed towards a central area of the combustion chamber. the combustion chamber. The ridges have concave curved portions 4a, which extend upward from the flat bottom and slanted portions 4b which extend between the curved portions and the top surface 1a of the head along the surface of a head. imaginary cone 5 having its apex above the upper surface. This combustion chamber allows a reduction in the operating temperature of a vaporizing nozzle for liquid fuel and makes more efficient use of turbulence in the combustion chamber.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-02 19:43
CPC Classifications
F; F02; F02B; F02B23/00; F02B23/02; F02B23/06; F02B23/0645; F02B23/0669; F02B23/0636; F02B23/0639; F02B23/0648; F02B23/0651; F02F; F02F1/00; F02F1/18; F02F1/22; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2275/00; F02B2275/14; F02B23/0618; F02B23/0621; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

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References Cited (Backward Citations)

GB696371A Cited
FR1078961A Cited
FR1076741A Cited
FR1411340A Cited
FR1411601A Cited
FR2197412A5 Cited
DE2407783A1 Cited
US3945351A Cited

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