Internal-combustion engines – Cooling – Automatic coolant flow control
Patent
1995-01-11
1996-09-17
Kamen, Noah P.
Internal-combustion engines
Cooling
Automatic coolant flow control
123 4131, 123545, 123196CP, F01P 714
Patent
active
055558550
ABSTRACT:
A water circulation system of a marine engine improves the consistency of engine combustion by stabilizing the temperature of water flowing through the engine water jacket and by heating the intake manifold to a temperature within a desired temperature range. The desired temperature range is defined so as to optimize fuel vaporization without significantly affecting the volumetric efficiency of the engine. The water circulation system includes a control valve which directs water flow through the circulation system according to the water temperature exiting the engine water jacket. The valve recirculates water between the engine water jacket and a recirculation path until the water temperature reaches a predetermined lower temperature limit. The control valve then allows a portion of the water to flow through a heating jacket around the intake manifold to heat the intake manifold. If the temperature of the recirculating water reaches a predetermined upper temperature limit, the control valve directs all of the water through the heating jacket until the temperature of the water exiting the engine water jacket falls below the upper temperature limit. In this manner, the water circulation system generally stabilizes the water temperature in the engine water jacket and heats the intake manifold to a temperature generally within the upper and lower temperature limits.
REFERENCES:
patent: 1938252 (1933-12-01), Hamacheck
patent: 3024774 (1962-03-01), Eby
patent: 3105472 (1963-10-01), Jasper
patent: 3358654 (1967-12-01), Shanahan et al.
patent: 4399797 (1983-08-01), Iwai
patent: 4516538 (1985-05-01), Arakawa et al.
patent: 5109809 (1992-05-01), Fujimoto
patent: 5383440 (1995-01-01), Koishikawa et al.
Kamen Noah P.
Sanshin Kogyo Kabushiki Kaisha
LandOfFree
Water circulation system for marine engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water circulation system for marine engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water circulation system for marine engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-407536