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US 11,060,450 B1Granted
Cam-driven radial rotary engine incorporating an HCCI apparatus
OwnerRoderick A Newstrominventor
Life of this patent
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Abstract
A two cycle-opposed piston, two cycle, homogenous charge compression ignition engine with cylinder sets, each cylinder set having a first cylinder with an intake port; a second cylinder coaxially aligned with the first cylinder and having an exhaust port; a first piston engaged within the first cylinder; a second piston engaged within the second cylinder; a combustion chamber formed between the first piston and the second piston; a first cam mechanically engaged with the first piston; a mechanical device to convert reciprocating motion to rotational motion connected to the second piston; and a charge pump connected to the intake port by an intake passage.
Claims20
A two cycle-opposed piston, two cycle homogenous charge compression ignition engine, comprising:
- an output shaft;
- a plurality of cylinder sets, each of the plurality of cylinder sets having:
- a first cylinder, having:
- an intake port;
- a second cylinder coaxially aligned with the first cylinder, the second cylinder having:
- piston;
- an exhaust port;
- a first piston engaged within the first cylinder;
- a second piston engaged within the second cylinder;
- a combustion chamber formed between the first piston and the second a first cam mechanically engaged with the first piston;
- a mechanical device configured to convert reciprocating motion to rotational motion connected to the second piston;
- and
- a charge pump connected to the intake port by an intake passage;
- wherein the first cam controls displacement of the first piston within the first cylinder;
- wherein the first cam is connected to the output shaft;
- wherein the mechanical device controls displacement of the second piston within the second cylinder;
- wherein the mechanical device is connected to the output shaft;
- wherein the intake port is opened and closed by the first piston;
- wherein the exhaust port is opened and closed by the second piston;
- wherein the charge pump is configured to pressurize an intake fuel-air charge in the intake passage and combustion chamber;
- wherein the charge pump has sufficient capacity to flush residual gasses from the combustion chamber and pressurize the intake fuel-air charge;
- wherein the fuel-air charge is nominally below an autoignition temperature;
- wherein the first cam is configured to drive the first piston toward the second piston during an expansion stroke of the second piston;
- wherein the first piston moves at a greater rate than the second piston to increase compression during the expansion stroke;
- and
- wherein the autoignition temperature is reached shortly after the expansion stroke commences.
23 more elements
A radial cam-driven engine, comprising:
- a plurality of cylinders arranged about a central shaft;
- a plurality of pistons contained within the plurality of cylinders;
- a cylinder block configured to contain the plurality of cylinders;
- a first plate;
- a second plate;
- a first cam track incorporated into the first plate;
- a second cam track incorporated into the second plate;
- a plurality of cam followers configured to secure the first cam track and the second cam track to the plurality of pistons by a plurality of shafts, each of the plurality of cam followers having:
- a hydrodynamic tilting pad bearing;
- wherein oil provides lubrication between the plurality of cam followers and the first cam track and the plurality of followers and the second cam track;
- wherein the cylinder block is positioned between the first plate and the second plate;
- wherein the first cam track and the second cam track are connected to the plurality of pistons;
- and
- wherein the first cam track and the second cam track are configured to convert reciprocating motion to rotational motion.
11 more elements
A cam-driven opposed-piston radial engine, comprising:
- a plurality of cylinder sets arranged about a central shaft, each of the plurality of cylinder sets having:
- a first cylinder, having:
- an intake port;
- a second cylinder coaxially aligned with the first cylinder, the second cylinder having:
- piston;
- an exhaust port;
- a first piston engaged within the first cylinder;
- a second piston engaged within the second cylinder;
- a combustion chamber formed between the first piston and the second
- a first cam mechanically engaged with the first piston;
- a second cam mechanically engaged with the second piston;
- wherein the first cam controls displacement of the first piston within the first cylinder and converts reciprocating motion to rotational motion;
- wherein the second cam controls displacement of the second piston within the first cylinder and converts reciprocating motion to rotational motion;
- a cylinder block configured to contain the plurality of cylinder sets;
- a first plate;
- a second plate;
- an ignition source configured to initiate combustion within the combustion chamber;
- wherein the first plate and second plate encompass the cylinder block;
- and wherein the first cam and the second cam compress the first piston and the second piston together to compress a fuel air charge within the combustion chamber.
16 more elements
Dependencies are inferred from the claim text.