Hydraulic Gaskets

A hydraulic gasket which is interposed between a pair of valve bodies of an automatic transmission each of which is provided with a hydraulic circuit for feeding operating fluid to frictional engaging elements of the automatic transmission. The gasket which is interposed between the pair of valve bodies is formed with a slit which in turn communicates with a fluid passage which in turn intercommunicate the hydraulic circuits of the pair of valve bodies, and has a valving element defined in the gasket by the slit. A portion on the side of the hydraulic circuit of one valve body is provided with a valve seat over which overlies and closes the slit. Depending upon the difference in pressure between the hydraulic circuits of the pair of valve bodies, the valving element elastically deforms itself so as to permit the flow of the operating fluid from one hydraulic circuit into the other hydraulic circuit. The numbers of component parts, the assembly steps and the quality control steps can be minimized so that the fabrication cost can be decreased, fabrication errors can be eliminated and highly stable and reliable sealing can be ensured.

The hydraulic gasket is therefore made to overcome the above described problems encountered in the prior art and has for its object to provide a gasket which can decrease the number of required component parts, the number of fabrication steps and the number of quality control steps, whereby the cost can be decreased and sealability and stability of performance can be ensured. According to the hydraulic gasket, a gasket and a one-way valve are integrated into a unitary construction, thereby attaining the above-mentioned objects. A first embodiment of a gasket in accordance with the hydraulic gasket which is interposed between a pair of valve bodies each of which is provided with a hydraulic circuit for feeding operating fluid to frictional engaging elements of an automatic transmission and which are mated and joined with each other is characterized in that the gasket interposed between the pair of valve bodies is provided with a slit which can intercommunicate between the hydraulic circuits of the pair of valve bodies and a valving element which is defined by the slit and is elastically deformable; a valve seat is overlaid on and closes the slit of the gasket on the side of the hydraulic circuit of one of the pair of valve bodies; and the valving element is elastically deformable in such a way that depending upon the difference in pressure in the hydraulic circuits of the pair of valve bodies, the operating fluid is only permitted to flow from one of the hydraulic circuits to the other.

In addition, the valving element can be provided with a reinforced member who is integrally bonded over the valving element. In this case, it is preferable that the reinforced member can adjust spring characteristics and/or strength of the valving element.

Featured Suppliers of Hydraulic Gaskets

Concept Electronics

Company Profile :
A company dealing in electronic weighing scales which include load cells, strain gauges, pressure gauges, pcb programming kits, housing, cabinets, filling systems, l/c based solutions and in many other products.

Products :
Platform Scale, Load Cells,

Products Profile:
Indicators for electronic weighing scales, load cells, strain gauges, pressure gauges, time swtiches & all types of timers, process control instruments-temperature controllers, data loggers, data scanners, pc based automations software, custom built projects and solutions.

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Micro Systems And Controls

Company Profile :
We are manufacturers of process control instruments like indicators , controllers,scanners,transmitters and signal conditioning products for temperature,pressure,humidity.

Products Profile:
Indicators,controllers,scanners,transmitters,signal isolators,signal distributors,for temperature,pressure,humidity.Design special controllers and electronics for oems

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Ratan Springs

Products Profile:
Tension spring, tata sumo spring, drum spring compressor spring, maruti spring, goods lift spring, heavy duty compressor spring, eye bolt with spring tension spring, tata sumo spring, drum spring compressor spring, maruti spring, goods lift spring, heav

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