[특허]Fuel control valve construction, parts therefor and methods of making the same

RobertShaw Controls Company

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특허 상세정보

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Fuel control valve construction, parts therefor and methods of making the same

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-031/385
미국특허분류(USC)	137/489.5; 137/066; 137/599; 431/058; 431/063
출원번호	US-0613462 (1984-05-24)
발명자 / 주소	Kelly, Samuel T.
출원인 / 주소	RobertShaw Controls Company
대리인 / 주소	Candor, Candor & Tassone
인용정보	피인용 횟수 : 6 인용 특허 : 4

초록
▼

A fuel control valve construction, parts therefor and methods of making the same are provided, the construction having a housing provided with an inlet adapted to be interconnected to a fuel source and an outlet adapted to be interconnected to a burner. The housing has a main pressure regulator and a main valve operated by the main pressure regulator for controlling fuel flow from the inlet to the outlet to provide a full rated flow of fuel to the burner. The housing has a by-pass for interconnecting the inlet to the outlet to provide a fuel flow to the burner that is less than a full rated flow of fuel but is sufficient by itself to support combustion at the burner until the main valve provides the full rated flow of fuel thereto. The housing has a by-pass pressure regulator for controlling the flow of fuel through the by-pass independently of the operation of the main pressure regulator.

대표
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1. In a fuel control valve construction having a housing means provided with an inlet means adapted to be interconnected to a fuel source and an outlet means adapted to be interconnected to a burner means, said housing means having a main pressure regulator means and a main valve means operated by said main pressure regulator means for controlling fuel flow from said inlet means to said outlet means to provide a full rated flow of fuel to said burner means, said housing means having a bypass means for interconnecting said inlet means to said outlet means to provide a fuel flow to said burner means that is less than a full rated flow of fuel but is sufficient by itself to support combustion at said burner means until said main valve means provides said full rated flow of fuel thereto, said main valve means comprising a main valve seat in said housing means between said inlet means and said outlet means and a main valve member for opening and closing said main valve seat under the control of said main pressure regulator means, said main valve means comprising a main flexible diaphragm means carried by said housing means and defining a chamber therewith on one side of said main diaphragm means and being operatively interconnected to said main valve member on the other side of said main diaphragm means to control the position of said main valve member relative to said main valve seat in relation to the position of said main diaphragm means as determined by the valve of the fluid pressure maintained in said chamber by said main pressure regulator means, the improvement wherein said housing means has a bypass pressure regulator means for controlling the flow of fuel through said bypass means independently of the operation of said main pressure regulator means, said housing means having a passage means leading from said inlet means to said main valve seat, said passage means having one branch intermediate said inlet means and said main valve seat leading to said outlet means and being provided with a restriction means therein, said passage means having another branch intermediate said inlet means and said main valve seat leading to said bypass means, said housing means having a valve unit for opening and closing said branches intermediate said inlet means and said restriction means for said one branch and intermediate said inlet means and said bypass pressure regulator means for said other branch, said housing means having a passage interconnected to said chamber and having a bleed point thereof interconnected to said one branch intermediate said restriction means thereof and said outlet means, said housing means having another restriction means in parallel to the first mentioned restriction means and interconnecting said one branch intermediate said valve unit and the first mentioned restriction means to said passage so as to pressurize said chamber with fuel pressure when said valve unit is in an open condition thereof, said main pressure regulator means being responsive to pressure in said outlet and being located adjacent said bleed point for controlling the pressure value of said fuel pressure in said chamber by controlling the amount of bleed between said passage and said one branch at said bleed point. 2. A fuel control valve construction as set forth in claim 1 wherein said passage has one-way delay means therein for delaying the pressurizing of said chamber for a certain time period after each opening of said valve unit. 3. A fuel control valve construction as set forth in claim 1 wherein said valve unit comprises a single valve seat in said housing means leading from said inlet means to both of said branches. 4. A fuel control valve construction as set forth in claim 1 wherein said housing means has another valve unit for opening and closing said passage means intermediate said inlet means and said main valve seat and intermediate said inlet means and the first mentioned valve unit. 5. A fuel control valve construction as set forth in claim 4 wherein said housing means has a third valve unit for opening and closing said passage means intermediate said inlet means and said other valve unit. 6. A fuel control valve construction as set forth in claim 5 wherein said other valve unit is manually operated and said first mentioned valve unit and said third valve unit are electrically operated. 7. A fuel control valve construction as set forth in claim 1 wherein said bypass pressure regulator means has a flexible diaphragm means carried by said housing means, said diaphragm means all being substantially coplanar in said housing means. 8. A fuel control valve construction as set forth in claim 7 wherein said diaphragm means of said main pressure regulator means and said diaphragm means of said by-pass regulator means are disposed in side-by-side relation in said housing means. 9. A fuel control valve construction as set forth in claim 1 wherein said valve unit has a valve seat and a movable valve member for opening and closing said valve seat. 10. A fuel control valve construction as set forth in claim 9 wherein said housing means has electrical means for controlling movement of said valve member of said valve unit relative to said valve seat of said valve unit.

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이 특허를 인용한 특허 피인용횟수: 6

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특허 상세정보

Fuel control valve construction, parts therefor and methods of making the same

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이 특허에 인용된 특허 (4)

이 특허를 인용한 특허 피인용횟수: 6

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Fuel control valve construction, parts therefor and methods of making the same

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이 특허에 인용된 특허 (4)

이 특허를 인용한 특허 피인용횟수: 6

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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