초록

A highly reliable bulk chemical delivery system for high purity chemicals employing a manifold that ensures contamination free operation and canister change outs with a minimum of valves and tubing.

대표청구항 ▼

A highly reliable bulk chemical delivery system for high purity chemicals employing a manifold that ensures contamination free operation and canister change outs with a minimum of valves and tubing. ression release valve; and wherein said cylinder head defines a second passage connecting said outle

A highly reliable bulk chemical delivery system for high purity chemicals employing a manifold that ensures contamination free operation and canister change outs with a minimum of valves and tubing. ression release valve; and wherein said cylinder head defines a second passage connecting said outlet of said compression release valve with an exhaust system of the engine; whereby compressed air from the combustion chamber is exhausted by said compression release valve to the exhaust system of the engine. 11. An internal combustion engine according to claim 10, wherein said second passage is formed in said cylinder head and extends to an exhaust port of said cylinder head. 12. An internal combustion engine according to claim 10, wherein said valve member comprises a plunger longitudinally movable within a valve body, said plunger cooperating with a seating surface to define said inlet, said valve body having an opening that comprises said outlet. 13. An internal combustion engine according to claim 10, further comprising a starter circuit, wherein said compression release valve is electrically actuatable by energizing the starter circuit. 14. An internal combustion engine according to claim 10, comprising a plurality of cylinders and a plurality of associated compression pressure reduction arrangements. 15. An internal combustion engine according to claim 14, wherein a single actuator actuates the plurality of compression pressure reduction arrangements. 16. A compression pressure reduction arrangement for an internal combustion engine, comprising: a compression release valve having a housing, an inlet, an outlet, and a valve member comprising an electrically actuatable solenoid disposed in said housing that is movable between open and closed positions, said open position permitting compressed air to move through said release valve from said inlet to said outlet; and a cylinder head having a first passage connecting a combustion chamber with said inlet of said compression release valve; and a second passage connecting said outlet of said compression release valve internally to the engine; whereby compressed air from the combustion chamber is exhausted by said compression release valve to the engine. 17. A compression pressure reduction arrangement according to claim 16, wherein said second passage is formed in said cylinder head. 18. An internal combustion engine, comprising: a cylinder head defining a cylinder and a combustion chamber; a compression pressure reduction arrangement, comprising: a compression release valve having a housing, an inlet, an outlet, and a valve member comprising an electrically actuatable solenoid disposed in said housing that is movable between open and closed positions, said open position permitting compressed air to move through said release valve from said inlet to said outlet; wherein said cylinder head defines a first passage connecting said combustion chamber with said inlet of said compression release valve; and wherein said cylinder head defines a second passage connecting said outlet of said compression release valve internally to the engine; whereby compressed air from the combustion chamber is exhausted by said compression release valve to the engine. 19. A compression pressure reduction arrangement for an internal combustion engine, comprising: an electrically actuatable compression release valve having a housing, an inlet, an outlet, and a valve member disposed in said housing that is movable between open and closed positions, said open position permitting compressed air to move through said release valve from said inlet to said outlet, wherein the valve opens by electrical actuation and automatically closes from increased engine pressure; and a cylinder head having a first passage connecting a combustion chamber with said inlet of said compression release valve; and a second passage connecting said outlet of said compression release valve internally to the engine; whereby compressed air from the combustion chamber is exhausted by said compression release valve to the engine. 20. An internal combustion engine according to claim 19, further comprising a