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munirabbasi

Normal Brake pressure line I way restrictor valve

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Hello Hydraulic Expertise

In normal brake Pressure line near to Normal brake selector valve (100CU IN Accumulator),one way restrictor is installed but in Emergency  brake pressure line the restrictor is not  installed (50 CU IN Accumulator) both hydraulic lines pressure  are same (3000 PSI) what is the reason behind it?

Munir Abbasi

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4 hours ago, munirabbasi said:

Hello Hydraulic Expertise

In normal brake Pressure line near to Normal brake selector valve (100CU IN Accumulator),one way restrictor is installed but in Emergency  brake pressure line the restrictor is not  installed (50 CU IN Accumulator) both hydraulic lines pressure  are same (3000 PSI) what is the reason behind it?

Munir Abbasi

Normal brake accumulator has a restrictor because of anti-skid system.  Emergency does not have anti-skid 

Anti-skid plus normal demand of brake application can deplete the accumulator rapidly.  The restrictor ensures the utility system pressure goes to the brakes instead of filling the accumulator.  

The restrictor is free flow OUT of accumulator but restricted flow IN to accumulator.

Acts like a priority valve for normal brakes.

 

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16 hours ago, hehe said:

Normal brake accumulator has a restrictor because of anti-skid system.  Emergency does not have anti-skid 

Anti-skid plus normal demand of brake application can deplete the accumulator rapidly.  The restrictor ensures the utility system pressure goes to the brakes instead of filling the accumulator.  

The restrictor is free flow OUT of accumulator but restricted flow IN to accumulator.

Acts like a priority valve for normal brakes.

 

Thanks

Munir Abbasi

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