EP 0233612 A3 19881005 - CARBURETTER FOR AN INTERNAL-COMBUSTION ENGINE AND IDLING SYSTEM THEREFOR
Title (en)
CARBURETTER FOR AN INTERNAL-COMBUSTION ENGINE AND IDLING SYSTEM THEREFOR
Publication
Application
Priority
DE 3604715 A 19860214
Abstract (en)
[origin: US4708828A] A carburetor with an idling system is designed so that the full pressure differential or gradient available between approximately ambient pressure and the vacuum in the intake tube is employed for producing a critical pressure ratio of a supersonic flow in a laval nozzle. To make this possible, a fuel air emulsion formed with primary air is introduced from a mixing duct via a constricted orifice of a tubular nozzle at a bore constriction, at which there is always a sonic velocity when there is a critical and supercritical pressure ratio, into the secondary air flow where it is superfinely atomized in the secondary air flow, with a maximum velocity differential, aided by subsequent pressure surges. At least at a point far into the partial load range of operation, the idling system produces a homogeneous mixture which is homogeneously distributed in the intake tube with a practically molecular state of division so that it is even supplied to all cylinders of the engine and completely combusted with a minimum production of contaminants.
IPC 1-7
IPC 8 full level
F02M 3/12 (2006.01)
CPC (source: EP US)
F02M 3/12 (2013.01 - EP US); Y10S 261/78 (2013.01 - EP US); Y10S 261/81 (2013.01 - EP US)
Citation (search report)
- [X] DE 2053991 A1 19720510
- [Y] US 1831056 A 19311110 - BICKNELL GEORGE M
- [AD] DE 2452342 A1 19750522 - FORD WERKE AG
- [A] US 1809387 A 19310609 - EMMANUEL MELKMAN SAUL
- [AD] EP 0036524 A2 19810930 - NISSAN MOTOR [JP]
- [A] DE 1626545 B1 19700312 - SIBE
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0233612 A2 19870826; EP 0233612 A3 19881005; EP 0233612 B1 19921230; AT E84119 T1 19930115; DE 3604715 A1 19870820; DE 3783241 D1 19930211; US 4708828 A 19871124
DOCDB simple family (application)
EP 87102088 A 19870213; AT 87102088 T 19870213; DE 3604715 A 19860214; DE 3783241 T 19870213; US 85350786 A 19860418