Inventor

SMITH FRANKLIN R

US47 patents

⚠️ This page may combine multiple inventors who share the name “SMITH FRANKLIN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SMITH FRANKLIN R

BORGWARNER INC

Control valves with integrated check valves

Hydraulic tensioner with pressure relief valve

Cam torque actuated variable camshaft timing device with a bi-directional oil pressure bias circuit

Variable camshaft timing device with hydraulic lock in an intermediate position

Remote variable camshaft timing control valve with lock pin control

Spool valve controlled VCT locking pin release mechanism

Spool valve controlled VCT locking pin release mechanism

Air venting mechanism for variable camshaft timing devices

Using differential pressure control system for VCT lock

Variable camshaft timing system with pin-style lock between relatively oscillatable components

Hydraulic tensioner with pivotal mount

Hydraulic detent for a variable camshaft timing device

Variable camshaft timing mechanism with a lock pin engaged by oil pressure

Timing phaser with offset spool valve

CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals

Hydraulic tensioner with pivotal mount

Multi-mode variable cam timing phaser

Hydraulic cushioning of a variable valve timing mechanism

VCT mechanism having a lock pin adapted to release at a pressure higher than the pressure required to hold the lock pin in the released position

Multi-mode variable camshaft timing device with two locking positions

Dual lock pin phaser

Variable camshaft timing for internal combustion engine with actuator locking

Method to vent air from a cam phaser with a center mounted spool valve

Worm gear driven variable cam phaser

Multi-mode variable cam timing phaser

Using camshaft timing device with hydraulic lock in an intermediate position for vehicle restarts

Hydraulic cushioning of a variable valve timing mechanism

Variable camshaft timing system with remotely located control system

Method to reduce rotational oscillation of a vane style phaser with a center mounted spool valve

Camshaft phaser using both cam torque and engine oil pressure

Variable camshaft timing mechanism with a lock pin engaged by oil pressure

Variable camshaft timing device with two locking positions

BORG WARNER AUTOMOTIVE

Variable camshaft timing for internal combustion engine

Variable camshaft timing for internal combustion engine

Hydraulic tensioner with a pressure relief valve

Belt driven variable camshaft timing system

Two-speed alternator drive

Hydraulic tensioner with porous vent

Variable camshaft timing for internal combustion engine

Variable camshaft timing system for improved operation during low hydraulic fluid pressure

Variable camshaft timing system utilizing changes in length of portions of a chain or belt

Variable camshaft timing system utilizing square-edged spool valve

BORG WARNER TRANSMISSION

Variable camshaft timing system

Sprocket retention/chain guide assembly

SIMPSON ROGER T

Variable cam timing controls mounted in the camshaft

SMITH FRANKLIN R

Variable camshaft timing mechanism with a default mode

MCCLOY CHAD

Venting mechanism to enhance warming of a variable cam timing mechanism