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a thermostat

A thermostat and temperature-sensing body technology, applied in the direction of machine/engine, coolant flow control, engine components, etc., can solve the problem of opening two-thirds of the small cycle and one-third of the large cycle at a certain temperature , at a certain temperature, the small cycle is opened for one quarter, the large cycle is opened for three quarters, and fine control cannot be satisfied.

Active Publication Date: 2016-07-13
LONGKOU ZHONGYU THERMAL MANAGEMENT SYST SCIAND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a key component in the cooling system of the internal combustion engine, the thermostat controls the flow path of the coolant. It needs to control its own opening to meet the cooling requirements under various working conditions. One-third of the temperature is turned on. At a certain temperature, the small cycle is turned on by one-fourth, and the large cycle is turned on by three-quarters. Neither of the aforementioned two thermostats can meet the requirements of this fine control.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The temperature-sensing body 91 of the mechanical thermostat is fixed on the housing 2, the push rod 90 of the temperature-sensing body of the mechanical thermostat is connected to the rack 7, the rack 7 meshes with the gear 5, and the gear 5 is fixed on the rotating shaft 6 Above, one end of the scroll spring 4 is fixed on the rotating shaft 6 , and the other end is fixed on the housing 2 . The diaphragm valve body 32 is fixed with the rotating shaft 6 , and the housing 2 is processed with a small circulation interface 1 , a large circulation interface 10 , and an engine water outlet 8 . The axis of the engine water outlet 8 is perpendicular to the paper in the same direction as the rotating shaft 6, and the axes of the small circulation interface 1 and the large circulation interface 10 coincide and are perpendicular to the axis of the rotating shaft 6. The line connecting the two free ends of the diaphragm valve body 32 passes through the axis of the rotating shaft 6...

Embodiment 2

[0031] The temperature sensing body 92 of the electric control thermostat is fixed on the housing 2, the push rod 90 of the temperature sensing body 92 of the electric control thermostat is connected with the rack 7, the rack 7 meshes with the gear 5, and the gear 5 is fixed on On the thermostat rotating shaft 6 , one end of the scroll spring 4 is fixed on the rotating shaft 6 , and the other end is fixed on the thermostat housing 2 . The diaphragm valve body 32 is fixed with the rotating shaft 6 , and the thermostat housing 2 is processed with a small circulation interface 1 , a large circulation interface 10 , and an engine water outlet 8 . The axis of the engine water outlet 8 is perpendicular to the paper in the same direction as the rotating shaft 6, and the axes of the small circulation interface 1 and the large circulation interface 10 coincide and are perpendicular to the axis of the rotating shaft 6. The line connecting the two free ends of the diaphragm valve body 32...

Embodiment 3

[0034] Others are the same as in Embodiment 2, except that a displacement measuring device 11 is installed on the rotating shaft 6, and the displacement measuring device 11 is connected with the vehicle ECU.

[0035]When the ECU energizes the temperature-sensing body 92 of the electronically controlled thermostat, the paraffin in the temperature-sensing body 92 of the electronically controlled thermostat melts rapidly, and pushes the temperature-sensing body push rod 90 to make it elongate. The push rod 90 of the temperature sensing body 92 of the electronically controlled thermostat pushes the rack 7 to move. The rack 7 meshes with the gear 5 and drives the gear 5 to rotate. The gear 5 is fixed on the rotating shaft 6, and the gear 5 drives the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the scroll spring 4 and the diaphragm valve body 32 to rotate. At the same time, the rotation of the rotating shaft 6 drives the displacement measuring device 11 ...

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PUM

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Abstract

The invention provides a thermostat. The thermostat comprises a housing 2, a temperature sensing body and a valve body, wherein the housing 2 is provided with a minor-cycle interface 1, a major-cycle interface 10 and an engine water outlet 8; the temperature sensing body is provided with a push rod 90. Compared with the prior art, a rotating shaft 6 is further arranged inside the housing 2; the axis of the push rod 90 is vertical to the axis of the rotating shaft 6; the rotating shaft 6 is fixedly connected with the valve body 3; the valve body is used for controlling the conducting of the minor-cycle interface 1 or the major-cycle interface 10 and the engine water outlet 8 through an execution mechanism for converting the linear motion of the push rod 90 into the rotary motion of the rotating shaft 6. Compared with the prior art, the thermostat can further finely control the flow path and the flow rate of cooling liquid in an internal-combustion engine cooling system.

Description

technical field [0001] The invention relates to a temperature regulating device in a cooling system of an automobile engine, in particular to a thermostat in a cooling system pipeline. Background technique [0002] At present, the commonly used thermostat is a wax type thermostat. When the cooling temperature is lower than the specified value, the paraffin wax in the temperature sensing body of the thermostat is solid, and the thermostat valve closes the gap between the engine and the radiator under the action of the spring. Channel, the coolant returns to the engine through the water pump for small circulation in the engine. When the temperature of the coolant reaches the specified value, the paraffin wax starts to melt and gradually turns into a liquid, and the volume increases accordingly, which acts on the push rod 90 to open the valve. At this time, the coolant passes through the radiator and thermostat valve, and then flows back to the engine through the water pump. ,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P7/16
Inventor 王兆宇邢子义姜文超
Owner LONGKOU ZHONGYU THERMAL MANAGEMENT SYST SCIAND TECH