EP 0295445 B1 19911227 - LIQUID COOLING CIRCUIT FOR MACHINES ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
Title (en)
LIQUID COOLING CIRCUIT FOR MACHINES ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
Publication
Application
Priority
DE 3716555 A 19870518
Abstract (en)
[origin: WO8809429A1] A liquid cooling circuit for driving and working engines, in particular for internal combustion engines, contains, in an ancillary flow vent pipe (14), an air extraction container (17) arranged at the tip (5') of the cooler lead-in (5). A filling pipe (19) with correcting ports (5'' and 17') for the cooler lead-in (5) and air extraction container (17) contains a sealing cover (20) which seals these connecting ports from each other. Overpressure, underpressure and vent valves (21 and 22) in the sealing cover (20) control a connecting line (25) to an atmospheric or overpressure equalizing container (27). The connecting line (25) which is opered at least at low coolant temperatures by a thermostatically controlled vent valve (22), permits highly efficient ventilation associated with a marked variation in engine speed. As a result of the arrangement and the low-volume of the air extraction container (17), filling is more rapid and the engine (1) warms up more quickly. Advantages resulting from other features of the invention are compact design, reduction of cost and weight, component compatibility, and extended operating conditions of the cooling circuit to ensure optimal cooling.
IPC 1-7
IPC 8 full level
F01P 3/22 (2006.01); F01P 7/16 (2006.01); F01P 11/02 (2006.01); F01P 11/18 (2006.01); F01P 5/10 (2006.01); F01P 5/12 (2006.01)
CPC (source: EP US)
F01P 7/165 (2013.01 - EP US); F01P 11/0247 (2013.01 - EP US); F01P 11/0204 (2013.01 - EP US); F01P 11/0238 (2013.01 - EP US); F01P 11/028 (2013.01 - EP US); F01P 11/0285 (2013.01 - EP US); F01P 11/029 (2013.01 - EP US); F01P 2005/105 (2013.01 - EP US); F01P 2005/125 (2013.01 - EP US); F01P 2011/0252 (2013.01 - EP US); F01P 2011/0261 (2013.01 - EP US); F01P 2011/0266 (2013.01 - EP US); F01P 2060/08 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 8809429 A1 19881201; DE 3716555 A1 19881208; DE 3716555 C2 19890511; DE 3867142 D1 19920206; EP 0295445 A2 19881221; EP 0295445 A3 19890503; EP 0295445 B1 19911227; ES 2028939 T3 19920716; JP H01503320 A 19891109; US 4913107 A 19900403
DOCDB simple family (application)
EP 8800435 W 19880518; DE 3716555 A 19870518; DE 3867142 T 19880518; EP 88107940 A 19880518; ES 88107940 T 19880518; JP 50408888 A 19880518; US 30274589 A 19890118