Induction system for supercharged engine

Details Induction system for supercharged engine Induction system for supercharged engine

1980-12-08

1983-07-12

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Supercharger

123559, 123601, 123611, F02D 2300, F02B 3344

Patent

active

043924727

ABSTRACT:
Disclosed is an induction or supercharger system (16) for a piston engine (10) having a Roots type blower (14) for supercharging an air-fuel mixture from a carburetor (12) having primary and secondary throttle valves (64) and (66). The induction system defines a naturally aspirated flow path, a recirculation flow path, and a supercharger flow path. The flow paths are controlled by valves (18) and (20). Valves (18, 64 and 66) are moved between their respective opened and closed positions by a linkage mechanism (44) including a lever (72) and linkage assemblies (74) and (76). The linkage assemblies include resilient means (88) and (102) which respectively move the throttle valves open and the valve (18) closed. Valve (20) is opened in response to a differential pressure across the naturally aspirated flow path and the supercharger flow path.

REFERENCES:
patent: 2383198 (1945-08-01), Jorgensen
patent: 2559859 (1951-07-01), Elliott et al.
patent: 2578028 (1951-12-01), Udale
patent: 2608051 (1952-08-01), Nettel
patent: 2773348 (1956-12-01), Grieshaber et al.
patent: 3868822 (1975-03-01), Keller
patent: 4062333 (1977-12-01), Matsuda et al.
patent: 4104882 (1978-08-01), Gillbrand et al.
SAE Article, vol. 89, No. 4, by Jack Yamaguchi, pp. 85-87.

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