Fuel injection means and process for making same
阅读：714发布：2023-07-31
专利汇可以提供Fuel injection means and process for making same专利检索，专利查询，专利分析的服务。并且In an internal combustion engine, a fuel injector having a valve with an elongated hollow stem which functions as a conduit for fuel being delivered to the valve opening. A heater probe is telescopically disposed in the stem to preheat the fuel. The valve is biased by a calibrated spring arrangement that is suited for automatic assembly.，下面是Fuel injection means and process for making same专利的具体信息内容。
1. In an internal combustion engine, the combination comprising: an engine housing having a combustion chamber therein; a power member movably disposed in the combustion chamber; fuel injection means for deliverying fuel to said chamber for combustion including: a body mounted on said engine housing, said body having an inlet for receiving fuel, and an outlet for the passage of fuel from the body toward the combustion chamber; a valve member mounted in the body adjacent said outlet so as to be movable toward an open position to allow fuel passage through the outlet; a bias member mounted in the body and connected to the valve member to urge it toward a closed position to block fuel passage through the outlet; an elongated valve stem connected to the valve member, and having an inlet for receiving fuel, and an outlet adjacent the valve member for passing fuel; and electrically operated heating means mounted on the body, including an elongated heating probe disposed in the inlet of the valve stem, the heating probe having a length such that it is disposed adjacent the outlet of the valve stem at such times as the valve member is disposed in said closed position.
2. A combination as defined in claim 1, including a pump connected to the inlet of said body for deliverying fuel at a pressure sufficient to move the valve member toward said open position.
3. A combination as defined in claim 1, in which the valve member has a frusto-conical surface engageable with a seat having a complementary shape.
4. A combination as defined in claim 1, in which the body has an annular retainer with a bore slideably receiving the valve stem, the retainer being shaped to seat the valve member in said closed position.
5. A combination as defined in claim 4, including a bias member engaged with the retainer and a second retainer mounted on the valve sTem so as to be movable therewith, the second retainer being engaged with the bias member and so spaced with respect to the first mentioned retainer whereby the bias member prevents motion of the valve member from said closed position unless fuel of a predetermined pressure urges the valve member toward said open position.
6. A combination as defined in claim 1, in which the valve stem is moved with respect to the heating probe as the valve member is moved from its open toward its closed positions.
7. A combination as defined in claim 1, including a source of fuel, heat exchanger means, and a fuel pump for deliverying fuel from said source through the heat exchanger means to the inlet of said body.
8. A combination as defined in claim 7, in which the heat exchanger means includes a head having an exhaust passage for passing combustion products from the combustion chamber, and a conduit for receiving fuel from the fuel pump, the conduit forming a coil disposed in the path of combustion products being passed through the exhaust passage.
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