Title:
A rotary piston engine with an exhaust turbosupercharging machine
Document Type and Number:
Japanese Patent JP6278028
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce a residual exhaust gas, to reduce pump loss, and to improve turbine efficiency, by preventing exhaust interference in a rotary piston engine with a turbo supercharger of multi-cylinder in which each cylinder has a side exhaust port.SOLUTION: A plurality of cylinders of a rotary piston engine 1 include a cylinder of a first type (front-side cylinder 31a) connected to a turbine 51 through a first exhaust passage 131, and a cylinder of a second type (rear-side cylinder 31b) bypassing the turbine by being connected to a second exhaust passage 132 joined to the first exhaust passage at the downstream of the turbine. Exhaust ports 10a, 10b of the cylinder of the first type are disposed on side housings 4, 41 at both sides, and an exhaust port 19c of the cylinder of the second type is disposed on the side housing 41 at one side. The total passage cross-sectional area of the exhaust port per one cylinder of the cylinder of the first type is larger than the total passage cross-sectional area of the exhaust port per one cylinder of the cylinder of the second type.SELECTED DRAWING: Figure 2
Inventors:
Naoyuki Yamagata
Application Number:
JP2015214729A
Publication Date:
February 14, 2018
Filing Date:
October 30, 2015
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B53/04; F02B53/00; F02D35/00
Domestic Patent References:
| JP2011122532A | ||||
| JP6047942B2 | ||||
| JP7011969A | ||||
| JP1115870U | ||||
| JP9189219A | ||||
| JP61190442U | ||||
| JP62034129U | ||||
| JP462702A |
Attorney, Agent or Firm:
Maeda patent office
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