| Patent Number |
Title Of Patent |
Date Issued |
| 5141906 |
Catalyst for purifying exhaust gas |
August 25, 1992 |
| A catalyst for purifying an exhaust gas comprising a zeolite catalyst ion-exchanged with a transition metal, which is heat-treated in a gas stream containing a sulfur oxide, optionally followed by washing with a glycol. |
| 4667636 |
Fuel injection type internal combustion engine |
May 26, 1987 |
| An internal combustion engine comprising three intake valves. The first intake valve and the second intake valve open at a crank angle near to the top dead center of the intake stroke. The third intake valve opens approximately at the center of the intake stroke. An air control valve is |
| 4608948 |
Air intake device of an internal combustion engine |
September 2, 1986 |
| An air intake device comprising a main air intake passage and an auxiliary air intake passage. The main air intake passage interconnects the air cleaner to the engine cylinders. The auxiliary air intake passage is connected to the air cleaner at one end thereof and to the main air intake |
| 4574748 |
Air intake device of an internal combustion engine |
March 11, 1986 |
| An air intake device comprising a main air intake passage and an auxiliary air intake passage, in which the main air intake passage interconnects the air cleaner to the engine cylinders and the auxiliary air intake passage is connected to the air cleaner at one end thereof and to the mai |
| 4549398 |
Exhaust gas cleaning device for diesel engines |
October 29, 1985 |
| An exhaust particle cleaning device for a diesel engine includes a trap case provided in a passage way of exhaust gas. A filter material is disposed in the trap case so that carbon particles or other exhaust particles contained in the exhaust gas can be caught within the filter mater |
| 4538412 |
Exhaust gas cleaning device for diesel engines |
September 3, 1985 |
| An exhaust particulate cleaning device for a diesel engine comprising a trap case which is located in a passageway of the exhaust gas and which has therein a filter material for trapping the exhaust particulates contained in the exhaust gas, an electric heater for igniting and burning |
| 4485622 |
Exhaust gas cleaning device for internal combustion engine |
December 4, 1984 |
| An exhaust gas cleaning device comprises at least one exhaust gas flowing passage, at least one particulates collecting member composed of two filter elements having different heat capacity, which is disposed within the exhaust gas flowing passage and heating means which is interposed |
| 4404798 |
Exhaust gas cleaning device for internal combustion engine |
September 20, 1983 |
| An exhaust gas cleaning device for an internal combustion engine comprises a housing provided with an inlet port which is communicated with an exhaust pipe of an internal combustion engine and an outlet port, two particulates collecting members disposed in two independent exhaust gas |
| 4404795 |
Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of |
September 20, 1983 |
| This invention provides improvements in method of and apparatus for reducing an emitted amount of particulates by collecting the particulates contained in the exhaust gas from a diesel engine by a trapper. According to the invention, firstly, an excess amount of the particulates which ha |
| 4386497 |
Exhaust gas cleaning device for internal combustion engine |
June 7, 1983 |
| An exhaust gas cleaning device comprises a casing provided with an inlet port which is communicated with an exhaust pipe of an internal combustion engine and an outlet port, two particulates collecting members disposed in two independent exhaust gas flowing passages which are communicate |
| 4272460 |
Variable venturi type carburetor |
June 9, 1981 |
| A variable venturi type carburetor of an internal combustion engine which includes a housing, a bore extending through the housing and having an inner wall defining an intake passage, a suction piston movably mounted in the housing and having a head portion projecting into the intake pas |
| 4264537 |
Variable venturi type carburetor |
April 28, 1981 |
| A variable venturi type carburetor of an internal combustion engine which includes a housing, a bore extending through the housing and having an inner wall defining an intake passage, a suction piston movably mounted in the housing and having a head portion projecting into the intake pas |
| 4242997 |
Exhaust gas recirculation system for internal combustion engines |
January 6, 1981 |
| In an exhaust gas recirculation system for an internal combustion engine, a flow control valve is disposed within a recirculation pipe and operatively connected to a pneumatically operated servomotor to control the flow quantity of exhaust gases through the recirculation pipe, and an ori |
| 4110979 |
Apparatus for introducing secondary air into an exhaust system of an internal combustion engine |
September 5, 1978 |
| An apparatus for introducing secondary air into an exhaust system of an internal combustion engine, provided with a three-way catalytic converter in the exhaust system. The apparatus includes a first air flow control valve adapted for controlling the amount of air introduced into the |
