Crash proof solenoid controlled valve for natural gas powered vehicles
First Claim
1. A valve for controlling flow of compressed gas from a pressure vessel, the valve comprising:
- a valve body having a head and a neck;
the head having an outlet port;
the neck having external threads for engagement with the pressure vessel, having an inner end, and having a bore which extends from the inner end to the outlet port;
a valve seat mounted in the bore and having an orifice at an inner end and a flow passage extending between the orifice and the outlet port;
a solenoid valve mounted to the inner end of the neck, the solenoid valve including a seal for closing the orifice, means for biasing the seal toward the seat to close the orifice, a plunger connected to the seal, and a solenoid coil for moving the plunger so that the seal moves out of engagement with the orifice.
9 Assignments
0 Petitions
Accused Products
Abstract
A compressed natural gas solenoid controlled valve is mounted in the threaded opening of a pressure vessel which contains the gas. The valve includes a valve body having a head which is exposed outside of the pressure vessel and a neck which is located within the pressure vessel. A solenoid poppet valve is mounted to the inner end of the neck. A valve seat is mounted in a bore within the valve body, and provides a flow passage which extends between an orifice at the inner end of the valve seat and an outlet port which is located in the head of the valve body. The solenoid poppet valve includes a seal for closing the orifice, a bias spring which biases the seal toward the seat to close the orifice, a plunger which is connected to the seal, and a solenoid coil which, when energized, moves the plunger so that the seal moves out of engagement with the seat and permits flow of compressed gas from the interior of the pressure vessel to the outlet port.
40 Citations
15 Claims
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1. A valve for controlling flow of compressed gas from a pressure vessel, the valve comprising:
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a valve body having a head and a neck;
the head having an outlet port;
the neck having external threads for engagement with the pressure vessel, having an inner end, and having a bore which extends from the inner end to the outlet port;a valve seat mounted in the bore and having an orifice at an inner end and a flow passage extending between the orifice and the outlet port; a solenoid valve mounted to the inner end of the neck, the solenoid valve including a seal for closing the orifice, means for biasing the seal toward the seat to close the orifice, a plunger connected to the seal, and a solenoid coil for moving the plunger so that the seal moves out of engagement with the orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A valve for controlling flow of compressed gas from a pressure vessel, the valve comprising:
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a valve body having a head with an outlet port and having a neck which is inserted into and is connected to an opening in the pressure vessel; and a solenoid poppet valve mounted to the neck and having an outer dimension which permits the solenoid poppet valve to be located within the pressure vessel, the solenoid poppet valve being normally closed and opening in response to a control signal to permit gas flow from the pressure vessel to the outlet port;
wherein the solenoid poppet valve comprises;a valve seat having an orifice and a flow passage leading from the orifice to the outlet port; a seal for closing the orifice; means for biasing the seal toward the seat; and a solenoid for moving the seal away from the seat in response to the control signal. - View Dependent Claims (10, 11, 12, 13)
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14. A valve for controlling flow of compressed gas from a pressure vessel, the valve comprising:
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a valve body having a head with an outlet port and having a neck which is inserted into and is connected to an opening in the pressure vessel; and a solenoid poppet valve mounted to the neck and having an outer dimension which permits the solenoid poppet valve to be located within the pressure vessel, the solenoid poppet valve being normally closed and opening in response to a control signal to permit gas flow from the pressure vessel to the outlet port; and a control circuit for providing the control signal to the solenoid poppet valve;
wherein the control circuit applies the control signal at a first power level to open the solenoid poppet valve and at a second, reduced power level to maintain the solenoid poppet valve open. - View Dependent Claims (15)
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Specification