JPS56146010A - Controlling device for pressure of engine cooling water - Google Patents
Controlling device for pressure of engine cooling waterInfo
- Publication number
- JPS56146010A JPS56146010A JP4866780A JP4866780A JPS56146010A JP S56146010 A JPS56146010 A JP S56146010A JP 4866780 A JP4866780 A JP 4866780A JP 4866780 A JP4866780 A JP 4866780A JP S56146010 A JPS56146010 A JP S56146010A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- radiator
- positive
- cooling liquid
- valve mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0238—Closure caps with overpressure valves or vent valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
PURPOSE:To prevent the generation of high pressure at the time of expansion of cooling liquid by making higher the working pressure of a positive-pressure valve mechanism on the side of a radiator in the case when the pressure of the cooling water is controlled by opening or closing the positive-pressure or negative-pressure valve mechanisms provided at the cap of the radiator or a reserve tank. CONSTITUTION:Even when the temperature of the cooling liquid rises due to the operation of an engine and thereby the cooling liquid is expanded, the dish-shaped valve body 30 of the negative-pressure valve mechanism 13a is pressed against a valve seat packing 25 and thereby a passage 32 is blocked up in the radiator cap 11a on condition that the pressure inside the radiator is lower than a set value, e.g. less than 0.9kg/cm<2>. When the pressure in the radiator rises above the aforesaid set value later, the dish-shaped valve body 24 of the positive-pressure valve mechanism 12a is opened against a spring 27 and a part of the cooling liquid is led into a reserve tank 3 through a conduit pipe 34. When the pressure inside the reverse tank rises above a set value, e.g. above 0.5kg/cm<2>, the positive-pressure valve mechanism 12b inside a reserve cap 11b is operated to open, whereby a steam is released from a conduit pipe 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4866780A JPS56146010A (en) | 1980-04-15 | 1980-04-15 | Controlling device for pressure of engine cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4866780A JPS56146010A (en) | 1980-04-15 | 1980-04-15 | Controlling device for pressure of engine cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56146010A true JPS56146010A (en) | 1981-11-13 |
Family
ID=12809672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4866780A Pending JPS56146010A (en) | 1980-04-15 | 1980-04-15 | Controlling device for pressure of engine cooling water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56146010A (en) |
-
1980
- 1980-04-15 JP JP4866780A patent/JPS56146010A/en active Pending
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