IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0532114
(2000-03-21)
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발명자
/ 주소 |
- Wulff, Joseph W.
- Hulett, Maynard
- Lee, Sunggyu
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
49 인용 특허 :
11 |
초록
▼
An internal combustion engine adapted to use an environmentally clean multi-fuel composition, comprising acetylene as a primary fuel and a combustible fuel, such as one or more fluids selected from an alcohol such as ethanol, methanol or any other alcohol or alcohols from the group comprising C1-C12
An internal combustion engine adapted to use an environmentally clean multi-fuel composition, comprising acetylene as a primary fuel and a combustible fuel, such as one or more fluids selected from an alcohol such as ethanol, methanol or any other alcohol or alcohols from the group comprising C1-C12carbon chains, ethers such as from the group comprising dimethyl ether, diethyl ether, methyl t-butyl ether, ethyl t-butyl ether, t-amyl methyl ether, di-isopropyl ether and the like, low-molecular-weight esters such as from the group comprising methyl formate, methyl acetate, ethyl acetate, methyl propionate, ethyl propionate, ethyl malate, butyl malate, and the like, or other suitable combustible fluid such as mineral spirits and the like, as a secondary fuel for operatively preventing early ignition and knock arising from the primary fuel.
대표청구항
▼
An internal combustion engine adapted to use an environmentally clean multi-fuel composition, comprising acetylene as a primary fuel and a combustible fuel, such as one or more fluids selected from an alcohol such as ethanol, methanol or any other alcohol or alcohols from the group comprising C1-C12
An internal combustion engine adapted to use an environmentally clean multi-fuel composition, comprising acetylene as a primary fuel and a combustible fuel, such as one or more fluids selected from an alcohol such as ethanol, methanol or any other alcohol or alcohols from the group comprising C1-C12carbon chains, ethers such as from the group comprising dimethyl ether, diethyl ether, methyl t-butyl ether, ethyl t-butyl ether, t-amyl methyl ether, di-isopropyl ether and the like, low-molecular-weight esters such as from the group comprising methyl formate, methyl acetate, ethyl acetate, methyl propionate, ethyl propionate, ethyl malate, butyl malate, and the like, or other suitable combustible fluid such as mineral spirits and the like, as a secondary fuel for operatively preventing early ignition and knock arising from the primary fuel. generated by the output member; a valve seat movable in forward and rearward directions in response to movement of the input member; an actuator that includes a movable member for moving the front portion of the input member and the valve seat without moving the rear portion, and an actuating member for moving the movable member upon activation of the actuator to control a distance between the valve seat and the engaging portion of the front portion of the input member in response to a driving force; a force transmitting member disposed between the front portion of the input member and the movable member of the actuator and being deformable in response to relative movement of the front portion of the input member and the movable member of the actuator; a first axial space formed between the reaction member and the front portion of the input member; and a second axial space formed between an inner end surface of the recessed portion and a front end surface of the front end portion during non-actuation of the actuator. 2. The vacuum servo unit according to claim 1, wherein the movable wall is a first movable wall, the front chamber is a first front chamber and the rear chamber is a second rear chamber, and including a second movable wall disposed within the housing to form a second front chamber and a second rear chamber. 3. The vacuum servo unit according to claim 1, wherein the force transmitting member is a rubber member. 4. The vacuum servo unit according to claim 3, including a clearance between the force transmitting member and the movable member of the actuator. 5. The vacuum servo unit according to claim 1, including a clearance between the force transmitting member and the movable member of the actuator. 6. A vacuum servo unit comprising: a housing; a movable wall disposed in the housing for dividing an interior of the housing into at least a front chamber and a rear chamber; a power piston connected to the movable wall and movable with the movable wall; an input member disposed in the power piston and movable in forward and rearward directions relative to the power piston by an input force; the input member having a front portion and a rear portion, with the rear portion being movable in the forward and rearward directions with respect to the front portion, the front portion of the input member including an engaging portion; an output member operatively connected to the power piston for outputting a forward force of the power piston in response to movement of the movable wall; a reaction member disposed between the input member and the output member, and being engageable with the engaging portion of the front portion of the input member, for transmitting a reaction force to the input member corresponding to an output force generated by the output member; a valve seat movable in forward and rearward directions in response to movement of the input member; an actuator that includes a movable member for moving the front portion of the input member and the valve seat without moving the rear portion, and an actuating member for moving the movable member upon activation of the actuator to control a distance between the valve seat and the engaging portion of the front portion of the input member in response to a driving force; a force transmitting member disposed between the front portion of the input member and the movable member of the actuator and deformable in response to relative movement of the front portion of the input member and the movable member; the front portion of the input member being retracted in the rearward direction relative to the power piston by the reaction member under a driving force of the actuator, the front portion of the input member being retracted relative to the power piston over a retracted distance that is limited to a predetermined value. 7. The vacuum servo unit according to claim 6, wherein the movable wall is a first movable wall, the front chamber is a first front c
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