Weichai Power Co., Ltd. / ADR (WEICY) USPTO patentsUtility application

The present invention belongs to the technical field of vehicle detection, and in particular relates to a method for detecting a urea consumption deviation, and a vehicle post-processing system.

A rocker arm mechanism includes a rocker arm shaft, a rocker arm, a valve clearance adjuster, a valve train, and a control valve.

The invention discloses an emission control system.

A fuel cell vehicle insulation resistor fault detection system, comprising: a stack, a stack pre-charge circuit, a power cell, a power distribution controller, a high voltage component, a VCU (vehicle control unit) and at least one insulation detector.

The invention relates to a device (1) having at least one fuel cell (2) and a DC/DC converter (3) assigned to the latter.

A control method for a hybrid power system.

Provided is a hybrid power system, which is composed of an engine (10) and a motor (20).

A variable valve driving mechanism of an engine, and the engine.

Provided is a hydraulic variable pump set, including a pump body component and an oil supplement component.

A urea tank for an SCR aftertreatment system, and a tank cover thereof.

An exhaust gas recirculation (EGR) system comprises a first turbocharger (7) and a second turbocharger (6) connected in series.

A cylinder head includes an intake throat and an intake duct, a valve seat ring is provided in an inner ring of the intake throat; a section of the intake duct is a tumble generating duct; and an extending direction of the tumble generating duct is oblique relative to the cylinder head bottom surface, the lower side surface of the tumble generating duct is a tumble guide surface, the lower end of which forms a tumble generating sharp angle, and the projection of the tumble generating sharp angle on the upper end circular surface of the valve seat ring is a sharp angle projection, the sharp angle projection is a protruding area protruding from the edge of the upper end circular surface of the valve seat ring, and the width of the middle part of the sharp angle projection is larger than the width of both ends thereof.

An engine exhaust aftertreatment device, comprising a first exhaust treatment unit and/or a second exhaust treatment unit; the first exhaust treatment unit comprises a first bypass pipeline (1) and a first connection pipe (4) provided between a DPF (2) and an SCR (3), one end of the first bypass pipeline (1) being in communication with a turbine front exhaust pipe (9), and the other end of the first bypass pipeline being in communication with the first connection pipe (4); the second exhaust treatment unit comprises a second bypass pipeline (19) and a second connection pipeline (20) provided between a DOC (13) and the DPF (2), one end of the second bypass pipeline (19) being in communication with the turbine front exhaust pipe (9), and the other end of the second bypass pipeline being in communication with the second connection pipeline (20); when it is detected that an engine (11) satisfies a starting condition of the first exhaust treatment unit, the first exhaust treatment unit starts; and when it is detected that the engine (11) satisfies a starting condition of the second exhaust treatment unit, the second exhaust treatment unit starts.

An engine and a double-swirl mixing device thereof are provided.

A phase diagnosis method and apparatus.

An intake valve device capable of implementing two-stage switching of a gas distribution phase and a diesel engine.

The present disclosure relates to a pressure stabilizer, a gas engine system and a gas pressure control method.

The present disclosure belongs to the technical field of engines, and specifically relates to a gas mixing device and a natural gas engine.