초록 ▼

Engine acceleration detection apparatus comprising a diaphragm unit with a first chamber connected directly to a point downstream of a throttle valve in a carburetor, a second chamber connected to the same point through a delay element, a diaphragm which is provided between the first and second cham

Engine acceleration detection apparatus comprising a diaphragm unit with a first chamber connected directly to a point downstream of a throttle valve in a carburetor, a second chamber connected to the same point through a delay element, a diaphragm which is provided between the first and second chambers and is displaced and causes displacement of an actuation rod element to actuate regulation means for adjustment of exhaust gas recirculation or other factors relating to engine operation when pressure increases downstream of the throttle valve, and atmosphere connection means which renders the diaphragm unit inoperative by connecting the second chamber thereof to the atmosphere in certain operating conditions, such as acceleration from high speed.

대표청구항 ▼

An apparatus for detection of acceleration of an engine of an automotive vehicle comprising a diaphragm unit including a displaceable diaphragm which divides said unit into a first chamber which is connected directly to a pressure detection port located downstream of a throttle valve in a carburetor

An apparatus for detection of acceleration of an engine of an automotive vehicle comprising a diaphragm unit including a displaceable diaphragm which divides said unit into a first chamber which is connected directly to a pressure detection port located downstream of a throttle valve in a carburetor of said engine and a second chamber which is connected to said pressure detection port through a delay element comprising a restriction orifice and a check valve which is disposed in parallel to said restriction orifice and opens when pressure in said second chamber is higher than, and closes when pressure in said second chamber is lower than pressure at said pressure detection port, said diaphragm being displaced to different positions in accordance with difference between pressure in said first chamber and pressure in said second chamber, an actuation rod element which is connected to and moved to different positions in accordance with movement of said diaphragm, said actuation rod element controlling actuation of regulation means for adjustment of factors relating to operation of said engine, a normally closed atmosphere connection means which may be opened to connect said second chamber of said diaphragm unit to an air source which is at or close to atmospheric pressure; and control means receiving input indicative of operating conditions of said engine and causing said atmosphere connection means to open in particular said conditions.