Automatic control device for an air compressor
First Claim
1. An automatic control device for controlling an air compressor, said air compressor being provided with both an idle-running/heavy-running and an auto-stop/start operation mode wherein a motor of said air compressor is switchable between idle running and heavy running in said idle running/heavy running operation mode and is switchable between stopping when said air compressor does not pump air into an air tank thereof and starting in said auto-stop/start operation mode, said automatic control device comprising:
- a controller for controlling said air compressor to switch between said idle running/heavy running operation mode and said auto-stop/start operation mode mode and including a micro-processor for providing timing and driving functions;
a microswitch which is a normally closed contact switch controlled by said controls and coupled to an air pressure cylinder of said air compressor; and
an electromagnetic switch controlled by said controller and connected between said motor and a power sourcewherein a speed control is further provided between a back pressure valve and an inlet valve of said air compressor for extending the time period for said compressor to switch from idle running to heavy running.
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Abstract
An automatic control device for an air compressor is disclosed. The air compressor controlled by the automatic control device is provided with two operation modes, one is the idle-running/heavy-running operation mode and the other one is the auto-stop/start operation mode. The automatic control device comprises a controller, a microswitch and an electromagnetic switch for controlling the air compressor to switch its operation mode between the idle-running/heavy-running and the auto-stop/start operation modes thereby enhancing the performance of the air compressor
8 Citations
1 Claim
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1. An automatic control device for controlling an air compressor, said air compressor being provided with both an idle-running/heavy-running and an auto-stop/start operation mode wherein a motor of said air compressor is switchable between idle running and heavy running in said idle running/heavy running operation mode and is switchable between stopping when said air compressor does not pump air into an air tank thereof and starting in said auto-stop/start operation mode, said automatic control device comprising:
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a controller for controlling said air compressor to switch between said idle running/heavy running operation mode and said auto-stop/start operation mode mode and including a micro-processor for providing timing and driving functions; a microswitch which is a normally closed contact switch controlled by said controls and coupled to an air pressure cylinder of said air compressor; and an electromagnetic switch controlled by said controller and connected between said motor and a power source wherein a speed control is further provided between a back pressure valve and an inlet valve of said air compressor for extending the time period for said compressor to switch from idle running to heavy running.
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Specification
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- Resources
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Current AssigneeChang, Ming-Yi
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Original AssigneeChang, Ming-Yi
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InventorsChang, Ming-Yi
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Primary Examiner(s)Yuen, Henry C.
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Assistant Examiner(s)Castro, Arnold
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Application NumberUS09/083,306Time in Patent Office907 DaysField of Search417/44.1, 417/44.4, 417/44.2, 417/44.8, 417/42US Class Current417/44.2CPC Class CodesF04B 2207/043 of timeF04B 49/022 by means of pressure
