US5117798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supplying system of a gas-engine
Assignee: Aisin Corp
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Filing: 1990-09-28
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Granted: 1992-06-02
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Expires: 2010-09-28
Abstract
Abstract A fuel supplying system of a gas-engine is comprised of a gas-engine, an intake manifold, a mixer communicated with the gas-engine via the intake manifold, a fuel passage, a gas tank communicated with the mixer via the fuel passage, an air passage, an air cleaner communicated with the mixer via the air passage, and a governor inserted in the fuel passage. The governor is comprised of a first gas room, a second gas room, an opening between the first gas room and the second gas room, and an atmospheric pressure room defined in the second gas room by a first diaphragm. The opening between the first gas room and the second gas room is open and closed by a valve. A lever is fixed to the valve and a first spring urges the valve to close the opening. An apparatus is supplied for varying the urging force of the spring.
Inventors
- 👤 Toshihiro Nozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:57
CPC Classifications
F; F02; F02M; F02M21/00; F02M21/02; F02M21/0218; F02M21/023; F02M21/0239; F02D; F02D19/00; F02D19/02; F02D19/021; F02D19/023; F02M21/0233; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
313 words
A fuel supplying system of a gas engine, comprising: a mixer for mixing gas and air; an intake manifold connecting said mixer with the gas engine and for supplying a gas-air mixture to the gas engine; a gas tank; a fuel passage connecting said mixer with said gas tank and for supplying gas to said mixer; an air passage connected to said mixer and for supplying air to said mixer; and a governor inserted in said fuel passage and having: a housing; a first gas room; a second gas room located adjacent said first gas room and in communication with said first gas room through an opening; a valve for opening and closing said opening; a lever fixed to said valve and supported on a portion of said housing which separates said first and second gas rooms; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; an atmosphere pressure room located adjacent said second gas room; a first diagram separating said atmospheric pressure room and said second gas room; a negative pressure room located adjacent said first gas room; a second diaphragm separating said negative pressure room and said first gas room; a rod connecting said pedestal and said second diaphragm; a negative pressure passage connecting said negative pressure room and said intake manifold; a solenoid valve located in said negative pressure passage for regulating the pressure in said negative pressure room; and means for biasing said moveable pedestal into a position where said first spring has its initial bias.
Claim 2
Dependent Claim
313 words
A fuel supplying system of a gas engine, comprising: a mixer for mixing gas and air; an intake manifold connecting said mixer with the gas engine and for supplying a gas-air mixture to the gas engine; a gas tank; a fuel passage connecting said mixer with said gas tank and for supplying gas to said mixer; an air passage connected to said mixer and for supplying air to said mixer; and a governor inserted in said fuel passage and having: a housing; a first gas room; a second gas room located adjacent said first gas room and in communication with said first gas room through an opening; a valve for opening and closing said opening; a lever fixed to said valve and supported on a portion of said housing which separates said first and second gas rooms; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; an atmosphere pressure room located adjacent said second gas room; a first diagram separating said atmospheric pressure room and said second gas room; a negative pressure room located adjacent said first gas room; a second diaphragm separating said negative pressure room and said first gas room; a rod connecting said pedestal and said second diaphragm; a negative pressure passage connecting said negative pressure room and said intake manifold; a solenoid valve located in said negative pressure passage for regulating the pressure in said negative pressure room; and means for biasing said moveable pedestal into a position where said first spring has its initial bias.
Claim 3
Dependent Claim
29 words
A fuel supplying system of gas-engine as set forth in claim 1, wherein said solenoid valve supplies an atmospheric pressure or a negative pressure to said negative pressure room.
Claim 4
Dependent Claim
28 words
A fuel supplying system of a gas engine as set forth in claim 1, wherein said biasing means includes a second spring located in said negative pressure room.
Claim 5
Dependent Claim
39 words
A fuel supplying system of a gas engine as set forth in claim 1, wherein said supporting member is in the form of a chamber and wherein said biasing means includes a second spring located in said supporting member.
Claim 6
Dependent Claim
265 words
A fuel supplying system of a gas engine, comprising: a mixer for mixing gas and air; an intake manifold connecting said mixer with the gas engine and for supplying a gas-air mixture to the gas engine; a gas tank; a fuel passage connecting said mixer with said gas tank and for supplying gas to said mixer; an air passage connected to said mixer and for supplying air to said mixer; and a governor inserted into said fuel passage and having: a housing; a first gas room; a second gas room located adjacent said first gas room and in communication with said first gas room through an opening; a valve for opening and closing said opening; a lever supported on a portion of said housing which separates said first and second gas rooms and fixed to said valve; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; an atmospheric pressure room located adjacent said second gas room; a first diaphragm separating said atmospheric pressure room and said second gas room; a rod connected on one end to said pedestal; a solenoid connected to the other end of said rod and for moving said pedestal to change the initial bias of said first spring.
Claim 7
Dependent Claim
265 words
A fuel supplying system of a gas engine, comprising: a mixer for mixing gas and air; an intake manifold connecting said mixer with the gas engine and for supplying a gas-air mixture to the gas engine; a gas tank; a fuel passage connecting said mixer with said gas tank and for supplying gas to said mixer; an air passage connected to said mixer and for supplying air to said mixer; and a governor inserted into said fuel passage and having: a housing; a first gas room; a second gas room located adjacent said first gas room and in communication with said first gas room through an opening; a valve for opening and closing said opening; a lever supported on a portion of said housing which separates said first and second gas rooms and fixed to said valve; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; an atmospheric pressure room located adjacent said second gas room; a first diaphragm separating said atmospheric pressure room and said second gas room; a rod connected on one end to said pedestal; a solenoid connected to the other end of said rod and for moving said pedestal to change the initial bias of said first spring.
Claim 8
Dependent Claim
215 words
A governor, for use in a fuel supplying system of a gas engine, comprising: a housing; a first gas room; a second gas room located adjacent said first gas room and in communication with said first gas room through an opening; a valve for opening and closing said opening; an atmospheric pressure room located adjacent said second gas room; a first diaphragm separating said atmospheric pressure room and said second gas room; a lever supported on a portion of said housing which separates said first and second gas rooms and fixed to said valve on a first end and in contact with said first diaphragm on a second end; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; a rod connected on one end to said pedestal; and a solenoid connected to the other end of said rod and for moving said pedestal to change the initial bias of said first spring.
Claim 9
Dependent Claim
215 words
A governor, for use in a fuel supplying system of a gas engine, comprising: a housing; a first gas room; a second gas room located adjacent said first gas room and in communication with said first gas room through an opening; a valve for opening and closing said opening; an atmospheric pressure room located adjacent said second gas room; a first diaphragm separating said atmospheric pressure room and said second gas room; a lever supported on a portion of said housing which separates said first and second gas rooms and fixed to said valve on a first end and in contact with said first diaphragm on a second end; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; a rod connected on one end to said pedestal; and a solenoid connected to the other end of said rod and for moving said pedestal to change the initial bias of said first spring.
Claim 10
Dependent Claim
330 words
A fuel supplying system of a gas engine, comprising: a mixer for mixing gas and air; an intake manifold connecting said mixer with the gas engine and for supplying a gas-air mixture to the gas engine; a gas tank; a fuel passage connecting said mixture with said gas tank and for supplying gas to said mixer; an air passage connected to said mixer and for supplying air to said mixer; and a governor inserted in said fuel passage and having: a housing; a first gas room; a second gas room located adjacent such first gas room and in communication with said first gas room through an opening; an atmosphere pressure room located adjacent to said second gas room; a first diagram separating said atmospheric pressure room and said second gas room; a valve for opening and closing said opening; a lever supported on a portion of said housing which separates said first and second gas rooms and fixed to said valve on a first end and in contact with said first diaphragm on a second end; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; a negative pressure room located adjacent to said first gas room; a second diaphragm separating said negative pressure room and said first gas room; a rod connecting said pedestal and said second diaphragm; a negative pressure passage connecting said negative pressure room and said intake manifold; a solenoid valve located in said negative pressure passage for regulating the pressure in said negative pressure room; and means for biasing said moveable pedestal to a position where said first spring has its initial bias.
Claim 11
Dependent Claim
330 words
A fuel supplying system of a gas engine, comprising: a mixer for mixing gas and air; an intake manifold connecting said mixer with the gas engine and for supplying a gas-air mixture to the gas engine; a gas tank; a fuel passage connecting said mixture with said gas tank and for supplying gas to said mixer; an air passage connected to said mixer and for supplying air to said mixer; and a governor inserted in said fuel passage and having: a housing; a first gas room; a second gas room located adjacent such first gas room and in communication with said first gas room through an opening; an atmosphere pressure room located adjacent to said second gas room; a first diagram separating said atmospheric pressure room and said second gas room; a valve for opening and closing said opening; a lever supported on a portion of said housing which separates said first and second gas rooms and fixed to said valve on a first end and in contact with said first diaphragm on a second end; a first spring attached on one end to said lever and having an initial bias which urges said valve to close said opening; a supporting member attached to said portion of said housing which separates said first and second gas rooms; a pedestal moveably supported by said supporting member and attached to the other end of said first spring, said pedestal being moveable to change the initial bias of said first spring; a negative pressure room located adjacent to said first gas room; a second diaphragm separating said negative pressure room and said first gas room; a rod connecting said pedestal and said second diaphragm; a negative pressure passage connecting said negative pressure room and said intake manifold; a solenoid valve located in said negative pressure passage for regulating the pressure in said negative pressure room; and means for biasing said moveable pedestal to a position where said first spring has its initial bias.
Claim 12
Dependent Claim
27 words
A fuel supplying system as set forth in claim 7, wherein said solenoid valve supplies an atmospheric pressure or a negative pressure to said negative pressure room.
Claim 13
Dependent Claim
24 words
A fuel supplying system as set forth in claim 7 wherein said biasing means includes a second spring located in said negative pressure room.
Claim 14
Dependent Claim
35 words
A fuel supplying system as set forth in claim 7, wherein said supporting member is in the form of a chamber, and wherein said biasing means includes a second spring located in said supporting member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-02 | 1995-12-02 | 1996-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-02 | 1999-12-02 | 2000-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-02 | 2003-12-02 | 2004-06-02 | $7700.00 | Window Closed / Lapsed |