thermostat seat

A technology of thermostat and sealing surface, applied in the direction of machine/engine, engine cooling, mechanical equipment, etc., can solve the problems of high scrap rate, easy breakage, high cost, improve casting yield, reduce fracture failure, Simple and reasonable structure

Active Publication Date: 2022-05-13
GUANGXI YUCHAI MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is often necessary to install several thermostats in high-power engines, and the inner cavity structure of the thermostat seat is complex. When the integral design is adopted, the cast aluminum material cannot be used for high-pressure casting, and only ordinary casting processes can be used.
Limited by the lift of the thermostat, the local space in the inner cavity of the thermostat seat is very small, so the local thickness of the sand core is required to be very small, and the part is easy to break when the sand core is assembled or poured, which is prone to casting defects and the scrap rate high, high cost

Method used

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Embodiment example

[0027] Such as figure 1 As shown, the three thermostats 4 are installed on the thermostat seat 1. Generally, the lift of the thermostat 4 is ≧10mm. In this way, the sealing surface 2 of the thermostat seat and the step surface 3 of the thermostat seat are required. The distance between them is ≦10 mm.

[0028] Such as figure 2 As shown, the schematic diagram of the assembly of the thermostat seat and the casting sand core. The sealing surface 2 of the thermostat seat and the step surface are both processed surfaces, and a machining allowance of 3 mm to 5 mm needs to be reserved at this position of the thermostat seat 1 blank. Therefore, the thickness of the thin-walled area 6 of the casting sand core of the thermostat seat 1 is only 3.3 mm, and the part is easy to break when the sand core is assembled or poured, and casting defects are prone to occur, resulting in high scrap rate and high cost.

[0029] Such as image 3 , the thermostat seat of the present invention incre...

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Abstract

The invention discloses a thermostat seat, comprising a thermostat seat, a thermostat is installed on the thermostat seat, a thermostat seat sealing surface is fixed on the thermostat seat, The sealing surface of the thermostat seat is correspondingly fixed with a stepped surface of the thermostat seat, and the casting sand core is installed on the thermostat seat, and the thin-walled area of ​​the casting sand core is fixed on the casting sand core corresponding to the thermostat seat, and the thermostat A threaded hole is fixedly provided on the sealing surface of the seat, and a cushion block is connected to the threaded hole, and a cushion block sealing surface is provided on the cushion block corresponding to the step surface of the thermostat seat. Thus, the thermostat seat of the present invention has a simple and reasonable structure, which reduces the failure of the casting sand core to break during assembly, improves the casting yield of the thermostat seat blank, and reduces the cost of the thermostat seat parts.

Description

technical field [0001] The invention relates to the technical field of engine components, in particular to a thermostat seat. Background technique [0002] As the core component of the internal combustion engine cooling system, the thermostat not only ensures the normal operation of the internal combustion engine, but also has an important impact on the performance of the internal combustion engine such as fuel economy and emissions. Its development has been highly valued by the automotive industry. A thermostat, also known as a thermostat, is a valve that controls the flow path of coolant. As an automatic temperature control device, it usually contains a temperature-sensitive component that opens and closes the flow of air, gas or liquid through expansion or contraction. Its function is to automatically adjust the amount of water entering the radiator according to the temperature of the engine cooling water, change the water circulation range, adjust the heat dissipation c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P7/16
Inventor 罗蔼杰覃明智胡忠义覃甲惠尤异
Owner GUANGXI YUCHAI MASCH CO LTD
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