Resources Contact Us Home
Transit vehicle heater

Image Number 17 for United States Patent #5878950.

A supplementary vehicle heater is provided which includes a burner, a heat exchanger, a coolant conduit connected to the heat exchanger and a coolant pump connected to the conduit. There are controls which are operatively connected to the burner and the coolant pump which operate the heater in a first mode when the engine is stopped to preheat the engine or keep the engine warm. The controls operate the heater in a second mode when the engine is running to improve heating of vehicle interior. Preferably the controls include automatic controls which engine coolant temperature. The controls cause the burner and pump to function when the engine is running and the coolant temperature is below preset temperature.

  Recently Added Patents
Video recording and playing apparatus and its control method
Selection of system parameters based on non-acoustic sensor information
Motion-compensated prediction of inter-layer residuals
Electric connection box
Automatic logical position adjustment of multiple screens
Shallow trench media
Denial of service (DoS) attack prevention through random access channel resource reallocation
  Randomly Featured Patents
Tissue sample revolver drum biopsy device
Somatic hybrids of Rutaceae plants
Image-forming apparatus and image-forming method
Trench schottky rectifier
Thin film transistor array panel using organic semiconductor and a method for manufacturing the same
Method of making a support roller
N-way data mirroring systems and methods for using the same
Method and apparatus for preventing erroneous echoelimination and equalization
Use of ketones, ketoesters and alcohol in repelling insects; use of aliphatic ester in attracting insects and process and apparatus for determination of insect repellency and attractancy
High-strength steel material with excellent hydrogen embrittlement resistance