Combination solenoid operated flow control and shut-off valve with pressure transducer
First Claim
Patent Images
1. A method of making an electrically operated valve assembly with an integral pressure transducer comprising:
- (a) forming a valve housing with a valving chamber having an inlet port with a passage communicating said chamber with a second valving chamber having an outlet port;
(b) disposing a pressure transducer in the housing and forming a first valve seat in said passage and porting the pressure transducer to said passage;
(c) disposing a first solenoid operated valve with a moveable obturator in said first chamber and disposing the obturator for movement with respect to said first valve seat; and
, (d) forming a second valve seat in said passage downstream of said first passage and disposing a second solenoid operated valve in said second passage with an obturator for movement with respect to said second valve seat.
1 Assignment
0 Petitions
Accused Products
Abstract
A combination solenoid operated flow control valve and solenoid operated by-pass valve and pressure transducer are disposed in a common housing with a common electrical receptacle for connection thereto. The pressure transducer senses differential pressure across a metering orifice. The pressure transducer measures flow through the metering orifice during leak testing. A vacuum is drawn in the system for leak testing. The by-pass valve is opened to bypass the metering orifice and permit full flow to the flow control valve during normal engine operation.
22 Citations
20 Claims
-
1. A method of making an electrically operated valve assembly with an integral pressure transducer comprising:
-
(a) forming a valve housing with a valving chamber having an inlet port with a passage communicating said chamber with a second valving chamber having an outlet port;
(b) disposing a pressure transducer in the housing and forming a first valve seat in said passage and porting the pressure transducer to said passage;
(c) disposing a first solenoid operated valve with a moveable obturator in said first chamber and disposing the obturator for movement with respect to said first valve seat; and
,(d) forming a second valve seat in said passage downstream of said first passage and disposing a second solenoid operated valve in said second passage with an obturator for movement with respect to said second valve seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An electrically operated valve assembly with integral pressure transducer comprising:
-
(a) a valve housing defining a first valving chamber with an inlet port and a second valving chamber with an outlet port and a valving passage having a first valve seat controlling flow from said first chamber to said passage and a second valve seat controlling flow from said passage to said second chamber;
(b) a first solenoid operated valve disposed for movement with respect to said first valve seat for controlling flow thereover and a second solenoid operated valve disposed for movement with respect to said second valve seat; and
(c) a pressure transducer disposed in said housing and ported to said passage for sensing pressure therein;
(d) means for effecting common external electrical connection to said first solenoid and said transducer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification