Fuel/oil pump

Patent · Tue Sep 01 04:00:00 EDT 1987

OSTI ID:6051349

Debevee, A F

A pump is described which consists of a housing, an oil pumping chamber in the housing, an oil outlet passageway in the housing communicating with the oil pumping chamber, an oil pumping piston reciprocally movable in the oil pumping chamber to produce oil flow into the oil outlet passageway in response to reciprocation of the oil pumping piston, a switch mounted on the housing and adapted to be operably connected to a device for actuation thereof, a second piston reciprocally movable in the housing relative to the oil outlet passageway between spaced first and second positions, means biasing the second piston to the second position, and means for closing the switch in response to movement of the second piston to the first position, the means for closing the switch including a rocker arm having opposite first and second ends and being pivotally mounted in the housing for movement about a pivot point intermediate the opposite ends. The first end is engageable with the second piston for movement in one direction in response to movement of the second piston to the first position, and the second end is engageable with the switch for closing the switch in response to movement of the first end in one direction.

• Assignee: NOV; NOV-87-079457; EDB-87-170037
• Patent Number(s): US 4690108
• OSTI ID: 6051349
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AUTOMOTIVE FUELS
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FUEL SYSTEMS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PISTONS
PUMPING
PUMPS
SWITCHES