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EP0060802A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Air-charging control system for two-cycle diesel engine

Assignee: Mitsubishi Heavy Industries Ltd
•
Filing: 1982-03-09
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Granted: —
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Expires: 2002-03-09
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Abstract

Abstract An air-charging control system for the two-cycle diesel engine of the exhaust-turbo supercharged type comprises a plurality of air-charging control valves (102) each of which is installed in the passage between an air-charging chamber (101) and each of scavenging chambers (7) for engine cylinders so as. to close the passage during part of the period in which the scavenging ports (8) of the associated cylinder are open, including at least the closing point of the scavenging ports, and to open the passage for the remainder of the period thereby admitting the airto the associated scavenging chamber, and drive means (103) for opening and closing the air-charging control valves (102).

Inventors

  • 👤 Yozo c/o. Nagasaki Technical Institute Tosa
  • 👤 Mataji C/O Nagasaki Technical Institute Tateishi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 16:11
CPC Classifications
F; F02; F02B; F02B33/00; F02B33/44; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B3/00; F02B3/06

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 153 words
In an air-charging control system for a two-cycle diesel engine having an exhaust-turbo supercharger which is driven by exhaust gases from the engine, scavenging chambers formed in the same number as, and respectively for, the engine cylinders, scavenging ports or valves providing communication between said scavenging chambers and said cylinders, and an air-charging chamber for receiving air under pressure from said exhaust-turbo supercharger, the improvement which comprises a plurality of air-charging control valves each of which is installed in the passage between said air-charging chamber and each said scavenging chamber to close said passage during part of the period in which the scavenging ports of the associated cylinder are open, including at least the closing point of said scavenging ports, and to open said passage for the remainder of said period so as to admit the air to the associated scavenging chamber, and drive means for opening and closing said air-charging control valves.
Claim 2
Dependent Claim 153 words
In an air-charging control system for a two-cycle diesel engine having an exhaust-turbo supercharger which is driven by exhaust gases from the engine, scavenging chambers formed in the same number as, and respectively for, the engine cylinders, scavenging ports or valves providing communication between said scavenging chambers and said cylinders, and an air-charging chamber for receiving air under pressure from said exhaust-turbo supercharger, the improvement which comprises a plurality of air-charging control valves each of which is installed in the passage between said air-charging chamber and each said scavenging chamber to close said passage during part of the period in which the scavenging ports of the associated cylinder are open, including at least the closing point of said scavenging ports, and to open said passage for the remainder of said period so as to admit the air to the associated scavenging chamber, and drive means for opening and closing said air-charging control valves.
Claim 3
Dependent Claim 20 words
A system according to claim 1, wherein said air-charging control valves are provided in the same number as said cylinders.
Claim 4
Dependent Claim 23 words
A system according to claim 1, wherein said air-charging control valves are installed between only limited numbers of said scavenging and air-charging chambers.

References Cited (Backward Citations)

GB737340A Cited
GB765950A Cited
FR1155449A Cited
CH342407A Cited
GB1145945A Cited

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