31 results about "Diesel cycle" patented technology

The internal combustion engine relies on air injection for ignition instead of Otto cycle spark or Diesel cycle fuel injection. Cylinder pairs are connected by a cylinder-connecting valve, which opens near top-dead-center on the compression stroke injecting high-pressure air from one cylinder into a second cylinder containing an air-fuel mixture thereby inducing detonation ignition at top-dead-center. During the expansion stroke, the cylinder-connecting valve remains open and provides equal pressure on both cylinders, which is substantially higher than possible in an Otto cycle. Constant volume heat addition makes this engine more efficient than the Diesel cycle. Compared to conventional engines, the absence of spark ignition or high pressure fuel injectors makes this engine more economical, more reliable, and scalable down to small sizes where fuel metering limitations of Diesel fuel injectors become problematic. The engine can serve as a reactor for generating high temperature hydrogen to power high temperature fuel cells.

This invention relates to bearings, and more specifically is directed to active hydrostatic bearings destined for large heavily loaded reciprocating internal combustion engines, like ultra high compression ratio Diesel cycle engines, and homogeneous charge compression ignition (HCCI) and detonation engines working on stoichiometric fuel / air mixture. A fluid handling system therefore, method and apparatus are also disclosed.

A method for removing sediments in a heavy oil pipeline of a spare heat medium boiler includes the steps of (1) closing an inlet and outlet valve of a heavy oil booster pump, and moving away the heavy oil booster pump; (2) connecting a diesel circulation pump and a diesel cycle collecting tank to a position to which the heavy oil booster pump was connected before so as to form a cycle; (3) opening an inlet valve from the diesel cycle collecting tank to the diesel circulation pump, a reflux valve of a diesel collecting tank, and an inlet and an outlet valves of the original heavy oil booster pump; and (4) starting the diesel circulation pump to enable diesel to reciprocally cycle through the diesel circulation pump, a heavy oil heater, a pipeline and the diesel collection tank for 2-3 hours. The diesel is used for realizing cycling of a small closed system formed by a heavy oil system of a single spare fuel heat medium boiler, and such impurities as oil sludge existing in the pipeline of the spare fuel heat medium boiler and the heater are removed, and thus, unimpeded cycle of the heavy oil pipeline in the spare fuel heat medium boiler is guaranteed, and the spare fuel heat medium boiler can be successfully put into use at any time.

An atomizer of a fuel electro-injector is equipped with a nozzle and a valve needle having a head, which is coupled to a sealing seat of the nozzle, and stem, which engages an inner seat of the nozzle; the stem and the nozzle define an annular passageway with a chamber that axially terminates at the sealing seat; the stem has an intermediate portion coupled in an axially sliding manner in the inner seat and defining a plurality of channels, the outlets of which are arranged on the annular chamber; the sealing seat and the head of the valve needle define a discharge section, which is annular and has a width that increases as the opening stroke of the valve needle proceeds; the ratio between the depth and the outer chord of the minimum cross-section of the channels is greater than or equal to two.