Single component intake/exhaust valve member, fuel distribution system, and cooling system for combustion-powered fastener-driving tool
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01B-025/00
F01L-003/00
출원번호
US-0811112
(2008-12-30)
등록번호
US-8714120
(2014-05-06)
국제출원번호
PCT/US2008/088515
(2008-12-30)
§371/§102 date
20100929
(20100929)
국제공개번호
WO2009/088844
(2009-07-16)
발명자
/ 주소
Adams, Joseph S.
출원인 / 주소
Illinois Tool Works Inc.
대리인 / 주소
Lowe Hauptman & Ham LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A new and improved combustion-powered fastener-driving tool utilizes a new and improved single component in-take/exhaust valve member which integrally defines both the intake and exhaust valves thereon. The intake/exhaust valve member is axially movable within the combustion chamber, and operatively
A new and improved combustion-powered fastener-driving tool utilizes a new and improved single component in-take/exhaust valve member which integrally defines both the intake and exhaust valves thereon. The intake/exhaust valve member is axially movable within the combustion chamber, and operatively cooperates with wall structure of the combustion chamber. When the intake/exhaust valve member is disposed, for example, at a first upper position, both the intake and exhaust ports defined within the wall structure of the combustion chamber are closed so as to permit the ignition and combustion phases of the tool-firing cycle to proceed, whereas, conversely, when the intake/exhaust valve member is disposed, for example, at a second lower position, both the intake and exhaust ports within the combustion chamber are open so as to permit incoming air to scavenge combustion exhaust products and to subsequently mix with injected fuel in preparation for the commencement of another tool-firing cycle.
대표청구항▼
1. A combustion chamber system comprising: a combustion chamber defined around an axis and into which an air-fuel mixture is to be charged; ignition means disposed within said combustion chamber for igniting the air-fuel mixture disposed within said combustion chamber; and a single component intake/
1. A combustion chamber system comprising: a combustion chamber defined around an axis and into which an air-fuel mixture is to be charged; ignition means disposed within said combustion chamber for igniting the air-fuel mixture disposed within said combustion chamber; and a single component intake/exhaust valve that has a passageway therethrough and is movable along a linear path relative to a wall structure of the combustion chamber between first CLOSED and second OPEN positions for controlling the intake of air into said combustion chamber and the exhaust of combustion products out from said combustion chamber. 2. The combustion chamber system as set forth in claim 1, wherein: a first combustion air intake port is defined with-in an upper side wall portion of said combustion chamber;a second combustion product exhaust port is defined within an upper wall portion of said combustion chamber; andsaid single component intake/exhaust valve has an annular configuration which permits combustion air to enter said first combustion air intake port for flow into said combustion chamber, and for permitting combustion products to be exhausted from said combustion chamber through said second combustion product exhaust port, when said single component intake/exhaust valve is disposed at said second OPEN position, and prevents combustion air from entering said first combustion air intake port for flow into said combustion chamber, and for preventing combustion products from being exhausted from said combustion chamber through said second combustion product exhaust port, when said single component intake/exhaust valve is disposed at said first CLOSED position. 3. The combustion chamber system as set forth in claim 2, wherein: said annularly configured single component intake-exhaust valve and said upper wall portion of said combustion chamber defining said second combustion product exhaust port comprise oppositely oriented flanged portions such that when said single component intake/exhaust valve is disposed at said first OPEN position, the combustion air entering said first combustion air intake port for flow into said combustion chamber will traverse a sinusoidal flow path. 4. The combustion chamber system as set forth in claim 3, further comprising: an intake/exhaust fan disposed within said combustion chamber for inducing said combustion air to enter said combustion chamber and for forcing said exhaust products out from said combustion chamber when said single component in-take/exhaust valve is disposed at said first OPEN position. 5. The combustion chamber system as set forth in claim 3, further comprising: a supplemental airflow system operatively associated with said combustion chamber system and disposed externally of said combustion chamber for causing combustion air to enter said combustion chamber through said first combustion air intake port defined within said upper side wall portion of said combustion chamber and for causing additional ambient air to cool external side wall portions of said combustion chamber. 6. The combustion chamber system as set forth in claim 5, wherein said supplemental airflow system comprises: an air duct fluidically connected to said first combustion air intake port defined within said upper side wall portion of said combustion chamber; anda dual-fan system comprising a first fan for con-ducting air into said air duct fluidically connected to said first combustion air intake port defined within said upper side wall portion of said combustion chamber, and a second fan for conducting ambient air onto said external side wall portions of said combustion chamber so as to cool said external side wall portions of said combustion chamber. 7. The combustion chamber system as set forth in claim 3, further comprising: an axially oriented fuel injection manifold disposed within said combustion chamber for distributing fuel into and throughout said combustion chamber. 8. The combustion chamber system as set forth in claim 7, further comprising: an accelerator plate fixedly mounted upon said axially oriented fuel injection manifold, disposed transversely with respect to said axially oriented fuel injection manifold, and having apertures defined therein for defining multiple flame fronts to be generated within said combustion chamber. 9. The combustion chamber system as set forth in claim 8, further comprising: additional flanged means disposed upon said annularly configured single component intake/exhaust valve and adapted to be disposed adjacent to said accelerator plate when said single component intake/exhaust valve is disposed at said first CLOSED position such that when said single component intake/exhaust valve is disposed at said first CLOSED position said upper wall member of said combustion chamber, said single component intake/exhaust valve, and said accelerator plate together define a pre-combustion chamber. 10. The combustion chamber system as set forth in claim 1, further comprising: electromagnetic means for moving said single component intake/exhaust valve between said first CLOSED and second OPEN positions within said combustion chamber. 11. The combustion chamber system as set forth in claim 1, wherein the valve is a reciprocating valve. 12. A combustion device, comprising: a combustion chamber; anda single component intake/exhaust valve configured to move along a trajectory in a repetitious manner relative to the combustion chamber such that at least a portion of the trajectory extends into said combustion chamber, wherein movement of the valve along the trajectory in the repetitious manner causes the valve to move between first CLOSED and second OPEN positions for controlling the intake of air into said combustion chamber and the exhaust of combustion products out from said combustion chamber, whereina first combustion air intake port is defined with-in an upper side wall portion of said combustion chamber;a second combustion product exhaust port is defined within an upper wall portion of said combustion chamber; andsaid single component intake/exhaust valve has an annular configuration configured to permit combustion air to enter said first combustion air intake port for flow into said combustion chamber, and for permitting combustion products to be exhausted from said combustion chamber through said second combustion product exhaust port, when said single component intake/exhaust valve is disposed at said second OPEN position, and prevents combustion air from entering said first combustion air intake port for flow into said combustion chamber, and for preventing combustion products from being exhausted from said combustion chamber through said second combustion product exhaust port, when said single component intake/exhaust valve is disposed at said first CLOSED position. 13. The device of claim 12, wherein: said annularly configured single component intake-exhaust valve and said upper wall portion of said combustion chamber defining said second combustion product exhaust port comprise oppositely oriented flanged portions such that when said single component intake/exhaust valve is disposed at said first OPEN position, the combustion air entering said first combustion air intake port for flow into said combustion chamber will traverse a sinusoidal flow path. 14. The device of claim 13, further comprising: an intake/exhaust fan disposed within said combustion chamber configured to induce combustion air to enter said combustion chamber and configured to force said exhaust products out from said combustion chamber when said single component in-take/exhaust valve is disposed at said first OPEN position. 15. The device of claim 13, further comprising: a supplemental airflow system operatively associated with said combustion chamber system and disposed externally of said combustion chamber for causing combustion air to enter said combustion chamber through said first combustion air intake port defined within said upper side wall portion of said combustion chamber and for causing additional ambient air to cool external side wall portions of said combustion chamber. 16. The device of claim 15, wherein said supplemental airflow system comprises: an air duct fluidically connected to said first combustion air intake port defined within said upper side wall portion of said combustion chamber; anda dual-fan system comprising a first fan configured to conduct air into said air duct fluidically connected to said first combustion air intake port defined within said upper side wall portion of said combustion chamber, and a second fan configured to conduct ambient air onto said external side wall portions of said combustion chamber so as to cool said external side wall portions of said combustion chamber. 17. The device of claim 13, further comprising: an axially oriented fuel injection manifold disposed within said combustion chamber for distributing fuel into and throughout said combustion chamber. 18. The device of claim 15, further comprising: an accelerator plate fixedly mounted upon said axially oriented fuel injection manifold, disposed transversely with respect to said axially oriented fuel injection manifold, and having apertures defined therein configured to define multiple flame fronts to be generated within said combustion chamber. 19. The device of claim 16, further comprising: a flange disposed upon said annularly configured single component intake/exhaust valve and adapted to be disposed adjacent to said accelerator plate when said single component intake/exhaust valve is disposed at said first CLOSED position such that when said single component intake/exhaust valve is disposed at said first CLOSED position said upper wall member of said combustion chamber, said single component intake/exhaust valve, and said accelerator plate together define a pre-combustion chamber.
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