150results about How to "Reduced flow cross section" patented technology

In an exhaust gas turbocharger of an internal combustion engine including a compressor arranged in the intake duct and a turbine arranged in the exhaust duct of the engine, wherein the turbine includes in its housing an exhaust collection chamber from which the exhaust gas is directed via turbine inlet passage to the turbine wheel, the housing also includes a bypass arrangement for conducting part of the exhaust gas to the turbine exhaust structure in a turbine wheel bypass line which includes an ejector structure forming a gas pumping device.

A two-cycle engine having a piston reciprocalbly mounted in a cylinder in which a combustion chamber is formed. In prescribed positions of the piston, the combustion chamber communicates with a crankcase via at least one transfer channel. A portion of an intake channel for supplying fuel / air mixture and combustion air is formed in a carburetor, in which is pivotably mounted a butterfly valve for controlling the flow cross-section of the intake channel. A fuel opening opens into the intake channel portion, and downstream of the carburetor the intake channel is divided into a mixture channel and an air channel. A mechanism is disposed on the butterfly valve to increase the speed of flow in the carburetor in the vicinity of the fuel opening.

The invention relates to an oil separation device (1) for separating oil from an air flow (10) for ventilating the crankcase of an internal combustion engine, said device having an inflow side (11) and an outflow side (12), the inflow side (11) can be fluidly connected to a crankcase of an internal combustion engine and an oil-containing gas stream (10) can flow from said inflow side (11) to an oil separation device (1), said outflow side (12) can be fluidly connected to an intake channel of an internal combustion engine and substantially An oil-cleared gas stream (10) can flow from the oil separation device (1) to said outflow side. According to the invention, a first control member (13) is provided, by means of which a first flow cross-section (A1) of the gas flow (10) through the oil separation device (1) can be varied and by means of the crankshaft The gas pressure in the tank controls the first member and provides a second control member (14) through which a second flow cross-section (A2) of the gas flow (10) through the oil separation device (1) can pass ( 14) The second component varies and can be controlled by a pressure drop in the intake channel, the second flow cross-section (A2) being located downstream of the first flow cross-section (A1).

The invention discloses a ventilating fan provided with a linkage type air valve. The ventilating fan comprises a body and a ventilating fan part; the body is fixedly connected with a fixing ring along any end in the axial direction; the fixing ring is provided with a six-vane linkage type air valve which plays a flow stabilization effect; the air valve comprises six equilateral-triangle-shaped intercepting plates which are oppositely installed at the upper surface of the fixing ring; the intercepting plates are articulated with a mounting base; the bottom side of each intercepting plate is fixedly connected with a rotating shaft; the two ends of each rotating shaft are connected with conical gears after penetrating through the mounting base; the conical gears at the two ends of two adjacent intercepting plates are meshed with each other, wherein two parallel rocker arms are fixedly installed at the middle part of each rotating shaft at the bottom side of any intercepting plate; and a lifting mechanism for making each intercepting plate do reciprocating rotation by taking the rotating shaft at the bottom side as the circle center is installed between the two rocker arms. According to the ventilating fan disclosed by the invention, by the linked intercepting plates, the angle of each intercepting plate with respect to a vent can be adjusted through the lifting mechanism so as to realize different degrees of obstruction to the vent, and the aim of regulating the air flow is realized.