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Patent Searching and Data


Title:
ENGINE WITH TURBO SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2017/169982
Kind Code:
A1
Abstract:
An engine (1) with a turbo supercharger is provided with a first turbo section (3A) and a second turbo section (3B). A first upstream section (55U) which is the scroll starting point of a first scroll passage (55) of the first turbo section (3A), and a second upstream section (53U) which is the scroll starting point of a second scroll passage (53) of the second turbo section (3B) are disposed, respectively, on the side that is further than a first turbine shaft (37) and the side that is further than a second turbine shaft (38) with respect to an engine body (10). The first and second scroll passages (55, 53) are passages scrolled so that the downstream sides of the first and second upstream sections (55U, 53U) face the side that is closer to the engine body (10) than is the respective turbine shaft (38, 37), wherein the scroll passages scroll in opposite directions to each other. Consequently, a first turbine (33T) and a second turbine (35T) rotate in opposite directions to each other.

Inventors:
NIWA YASUSHI (JP)
NAKAJIMA MITSUHIRO (JP)
Application Number:
PCT/JP2017/011231
Publication Date:
October 05, 2017
Filing Date:
March 21, 2017
Export Citation:
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Assignee:
MAZDA MOTOR (JP)
International Classes:
F02B37/00; F02B37/013
Domestic Patent References:
WO2004099586A12004-11-18
Foreign References:
JP2010281282A2010-12-16
JPH02105543U1990-08-22
JP2011007185A2011-01-13
DE19709879A11998-09-24
US20140127002A12014-05-08
US20130031901A12013-02-07
FR2945577A12010-11-19
Other References:
See also references of EP 3438429A4
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
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