Thermostat that the reactivity thereof is improved

Patent metadata

Field	Value
Publication number	US-9360873-B2
Application number	US-201314044488-A
Country	US
Kind code	B2
Filing date	Oct 2, 2013
Priority date	Oct 16, 2012
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A thermostat having improved reactivity may include a thermostat case having side connected to first and second passages, and a third passage formed between the first and second passages in a side direction, a valve body where first and second valves are formed to open/close the first and second passages, and a mounting space is formed in the valve body, an elastic member elastically pushing the valve body in a direction of the first valve such that the first valve closes the first passage, and a drive portion moving the valve body in response to contraction or expansion of a wax disposed in the mounting space. A flowing turn wall may be formed to correspond to the third passage such that a liquid flowing in through the second passage moves in a direction opposite to the third passage.

First claim

What is claimed is:

1. A thermostat having improved reactivity, comprising:
a thermostat case that one side thereof is connected to a first passage, the other side thereof is connected to a second passage, and a third passage is formed between the first and second passages in a side direction;
a valve body where a first valve is formed at one side thereof to open/close the first passage, a second valve is formed at the other side thereof to open/close the second passage, and a mounting space is formed therein;
an elastic member that elastically pushes the valve body in a direction of the first valve such that the first valve closes the first passage; and
a drive portion that moves the valve body in response to contraction or expansion of a wax that is disposed in the mounting space of the valve body, wherein a flowing turn wall is formed to correspond to the third passage such that a liquid that flows in through the second passage moves in a direction opposite to the third passage.

2. The thermostat of claim 1 , wherein the valve body includes a length-direction element that is extended in a length direction and is arranged along a circumference of the drive portion at a first predetermined distance; and
a circumference-direction element that is extended along the circumference of the drive portion and is arranged in a length direction at a second predetermined distance, wherein the flowing turn wall is formed in a section formed by the circumference-direction element and the length-direction element.

3. The thermostat of claim 2 , wherein the flowing turn wall is formed at an end portion of the valve body.

4. The thermostat of claim 2 , wherein the flowing turn wall is integrally formed with the circumference-direction element or the length-direction element or with both the circumference-direction element and the length-direction element.

5. The thermostat of claim 2 , wherein the circumference-direction element includes:
a first ring member that is formed at a central portion of the valve body; and
a second ring member that is formed at one end portion of the valve body, wherein the flowing turn wall is formed between the first and second ring members.

6. The thermostat of claim 2 , wherein
a mounting hole connected to the mounting space is formed at a central portion of the first valve;
a groove is formed on an interior circumference of the mounting hole in a length direction; and
a protrusion is formed on an exterior circumference of the drive portion that is inserted into the mounting hole to correspond to the groove.

7. The thermostat of claim 1 , wherein
the drive portion includes a main piston that is movable in response to the contraction or expansion of the wax;
a piston support portion supporting one end portion of the piston is formed in the mounting space of the valve body; and
the second valve is integrally formed along a circumference of the piston support portion.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Kia Motors Company

Inventors

• Lee Philgi

Classifications

• F01P7/16 Primary

  by thermostatic control · CPC title

• G05D23/021 Primary

  the sensing element being a non-metallic solid, e.g. elastomer, paste · CPC title

• G05D23/1333 Primary

  measuring the temperature of incoming fluid · CPC title

• F01P11/16

  concerning coolant temperature (F01P11/20 takes precedence) · CPC title

• F16K31/00

  Actuating devices;} Operating means; Releasing devices {(regulating means G05D) · CPC title